krz/octosentry

macOS menu bar app to monitor GitHub security alerts

clone: git clone https://gitbay.org/krz/octosentry.git

d8862a9b78b0d6cf4e11cf537be7678794e08811

verified · cmc

author: Christian Cleberg <hello@cleberg.net> · 2026-07-17T21:06:47Z

Scaffold octosentry MVP: unified GitHub security alert feed

MenuBarExtra popover aggregating Dependabot, code scanning, and secret
scanning alerts for a single repo into one severity-ranked stream. Swift 6
strict concurrency, zero third-party dependencies, PAT-via-env-var auth as
a dev-only shortcut ahead of the device authorization flow.
 .gitignore                                         |  11 +
 LICENSE                                            | 674 +++++++++++++++++++++
 README.md                                          |  65 ++
 octosentry.xcodeproj/project.pbxproj               | 586 ++++++++++++++++++
 .../project.xcworkspace/contents.xcworkspacedata   |   7 +
 .../xcshareddata/xcschemes/octosentry.xcscheme     | 103 ++++
 .../AccentColor.colorset/Contents.json             |  11 +
 .../AppIcon.appiconset/Contents.json               |  58 ++
 octosentry/Assets.xcassets/Contents.json           |   6 +
 octosentry/GitHubAPIError.swift                    |  41 ++
 octosentry/GitHubAPIModels.swift                   |  88 +++
 octosentry/GitHubSecurityAPIClient.swift           | 168 +++++
 octosentry/SecurityEvent.swift                     |  19 +
 octosentry/SecurityEventListView.swift             | 143 +++++
 octosentry/SecurityEventRow.swift                  |  73 +++
 octosentry/SecurityEventSeverity.swift             |  35 ++
 octosentry/SecurityEventSource.swift               |  20 +
 octosentry/SecurityEventStore.swift                |  93 +++
 octosentry/SeverityMapping.swift                   |  52 ++
 octosentry/octosentryApp.swift                     |  20 +
 octosentryTests/octosentryTests.swift              |  19 +
 octosentryUITests/octosentryUITests.swift          |  43 ++
 .../octosentryUITestsLaunchTests.swift             |  35 ++
 23 files changed, 2370 insertions(+)

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..a843a02
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,11 @@
+# Xcode
+xcuserdata/
+*.xcuserstate
+DerivedData/
+build/
+
+# macOS
+.DS_Store
+
+# Claude Code local settings
+.claude/settings.local.json
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..f288702
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+  The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works.  By contrast,
+the GNU General Public License is intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users.  We, the Free Software Foundation, use the
+GNU General Public License for most of our software; it applies also to
+any other work released this way by its authors.  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+  To protect your rights, we need to prevent others from denying you
+these rights or asking you to surrender the rights.  Therefore, you have
+certain responsibilities if you distribute copies of the software, or if
+you modify it: responsibilities to respect the freedom of others.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must pass on to the recipients the same
+freedoms that you received.  You must make sure that they, too, receive
+or can get the source code.  And you must show them these terms so they
+know their rights.
+
+  Developers that use the GNU GPL protect your rights with two steps:
+(1) assert copyright on the software, and (2) offer you this License
+giving you legal permission to copy, distribute and/or modify it.
+
+  For the developers' and authors' protection, the GPL clearly explains
+that there is no warranty for this free software.  For both users' and
+authors' sake, the GPL requires that modified versions be marked as
+changed, so that their problems will not be attributed erroneously to
+authors of previous versions.
+
+  Some devices are designed to deny users access to install or run
+modified versions of the software inside them, although the manufacturer
+can do so.  This is fundamentally incompatible with the aim of
+protecting users' freedom to change the software.  The systematic
+pattern of such abuse occurs in the area of products for individuals to
+use, which is precisely where it is most unacceptable.  Therefore, we
+have designed this version of the GPL to prohibit the practice for those
+products.  If such problems arise substantially in other domains, we
+stand ready to extend this provision to those domains in future versions
+of the GPL, as needed to protect the freedom of users.
+
+  Finally, every program is threatened constantly by software patents.
+States should not allow patents to restrict development and use of
+software on general-purpose computers, but in those that do, we wish to
+avoid the special danger that patents applied to a free program could
+make it effectively proprietary.  To prevent this, the GPL assures that
+patents cannot be used to render the program non-free.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+                       TERMS AND CONDITIONS
+
+  0. Definitions.
+
+  "This License" refers to version 3 of the GNU General Public License.
+
+  "Copyright" also means copyright-like laws that apply to other kinds of
+works, such as semiconductor masks.
+
+  "The Program" refers to any copyrightable work licensed under this
+License.  Each licensee is addressed as "you".  "Licensees" and
+"recipients" may be individuals or organizations.
+
+  To "modify" a work means to copy from or adapt all or part of the work
+in a fashion requiring copyright permission, other than the making of an
+exact copy.  The resulting work is called a "modified version" of the
+earlier work or a work "based on" the earlier work.
+
+  A "covered work" means either the unmodified Program or a work based
+on the Program.
+
+  To "propagate" a work means to do anything with it that, without
+permission, would make you directly or secondarily liable for
+infringement under applicable copyright law, except executing it on a
+computer or modifying a private copy.  Propagation includes copying,
+distribution (with or without modification), making available to the
+public, and in some countries other activities as well.
+
+  To "convey" a work means any kind of propagation that enables other
+parties to make or receive copies.  Mere interaction with a user through
+a computer network, with no transfer of a copy, is not conveying.
+
+  An interactive user interface displays "Appropriate Legal Notices"
+to the extent that it includes a convenient and prominently visible
+feature that (1) displays an appropriate copyright notice, and (2)
+tells the user that there is no warranty for the work (except to the
+extent that warranties are provided), that licensees may convey the
+work under this License, and how to view a copy of this License.  If
+the interface presents a list of user commands or options, such as a
+menu, a prominent item in the list meets this criterion.
+
+  1. Source Code.
+
+  The "source code" for a work means the preferred form of the work
+for making modifications to it.  "Object code" means any non-source
+form of a work.
+
+  A "Standard Interface" means an interface that either is an official
+standard defined by a recognized standards body, or, in the case of
+interfaces specified for a particular programming language, one that
+is widely used among developers working in that language.
+
+  The "System Libraries" of an executable work include anything, other
+than the work as a whole, that (a) is included in the normal form of
+packaging a Major Component, but which is not part of that Major
+Component, and (b) serves only to enable use of the work with that
+Major Component, or to implement a Standard Interface for which an
+implementation is available to the public in source code form.  A
+"Major Component", in this context, means a major essential component
+(kernel, window system, and so on) of the specific operating system
+(if any) on which the executable work runs, or a compiler used to
+produce the work, or an object code interpreter used to run it.
+
+  The "Corresponding Source" for a work in object code form means all
+the source code needed to generate, install, and (for an executable
+work) run the object code and to modify the work, including scripts to
+control those activities.  However, it does not include the work's
+System Libraries, or general-purpose tools or generally available free
+programs which are used unmodified in performing those activities but
+which are not part of the work.  For example, Corresponding Source
+includes interface definition files associated with source files for
+the work, and the source code for shared libraries and dynamically
+linked subprograms that the work is specifically designed to require,
+such as by intimate data communication or control flow between those
+subprograms and other parts of the work.
+
+  The Corresponding Source need not include anything that users
+can regenerate automatically from other parts of the Corresponding
+Source.
+
+  The Corresponding Source for a work in source code form is that
+same work.
+
+  2. Basic Permissions.
+
+  All rights granted under this License are granted for the term of
+copyright on the Program, and are irrevocable provided the stated
+conditions are met.  This License explicitly affirms your unlimited
+permission to run the unmodified Program.  The output from running a
+covered work is covered by this License only if the output, given its
+content, constitutes a covered work.  This License acknowledges your
+rights of fair use or other equivalent, as provided by copyright law.
+
+  You may make, run and propagate covered works that you do not
+convey, without conditions so long as your license otherwise remains
+in force.  You may convey covered works to others for the sole purpose
+of having them make modifications exclusively for you, or provide you
+with facilities for running those works, provided that you comply with
+the terms of this License in conveying all material for which you do
+not control copyright.  Those thus making or running the covered works
+for you must do so exclusively on your behalf, under your direction
+and control, on terms that prohibit them from making any copies of
+your copyrighted material outside their relationship with you.
+
+  Conveying under any other circumstances is permitted solely under
+the conditions stated below.  Sublicensing is not allowed; section 10
+makes it unnecessary.
+
+  3. Protecting Users' Legal Rights From Anti-Circumvention Law.
+
+  No covered work shall be deemed part of an effective technological
+measure under any applicable law fulfilling obligations under article
+11 of the WIPO copyright treaty adopted on 20 December 1996, or
+similar laws prohibiting or restricting circumvention of such
+measures.
+
+  When you convey a covered work, you waive any legal power to forbid
+circumvention of technological measures to the extent such circumvention
+is effected by exercising rights under this License with respect to
+the covered work, and you disclaim any intention to limit operation or
+modification of the work as a means of enforcing, against the work's
+users, your or third parties' legal rights to forbid circumvention of
+technological measures.
+
+  4. Conveying Verbatim Copies.
+
+  You may convey verbatim copies of the Program's source code as you
+receive it, in any medium, provided that you conspicuously and
+appropriately publish on each copy an appropriate copyright notice;
+keep intact all notices stating that this License and any
+non-permissive terms added in accord with section 7 apply to the code;
+keep intact all notices of the absence of any warranty; and give all
+recipients a copy of this License along with the Program.
+
+  You may charge any price or no price for each copy that you convey,
+and you may offer support or warranty protection for a fee.
+
+  5. Conveying Modified Source Versions.
+
+  You may convey a work based on the Program, or the modifications to
+produce it from the Program, in the form of source code under the
+terms of section 4, provided that you also meet all of these conditions:
+
+    a) The work must carry prominent notices stating that you modified
+    it, and giving a relevant date.
+
+    b) The work must carry prominent notices stating that it is
+    released under this License and any conditions added under section
+    7.  This requirement modifies the requirement in section 4 to
+    "keep intact all notices".
+
+    c) You must license the entire work, as a whole, under this
+    License to anyone who comes into possession of a copy.  This
+    License will therefore apply, along with any applicable section 7
+    additional terms, to the whole of the work, and all its parts,
+    regardless of how they are packaged.  This License gives no
+    permission to license the work in any other way, but it does not
+    invalidate such permission if you have separately received it.
+
+    d) If the work has interactive user interfaces, each must display
+    Appropriate Legal Notices; however, if the Program has interactive
+    interfaces that do not display Appropriate Legal Notices, your
+    work need not make them do so.
+
+  A compilation of a covered work with other separate and independent
+works, which are not by their nature extensions of the covered work,
+and which are not combined with it such as to form a larger program,
+in or on a volume of a storage or distribution medium, is called an
+"aggregate" if the compilation and its resulting copyright are not
+used to limit the access or legal rights of the compilation's users
+beyond what the individual works permit.  Inclusion of a covered work
+in an aggregate does not cause this License to apply to the other
+parts of the aggregate.
+
+  6. Conveying Non-Source Forms.
+
+  You may convey a covered work in object code form under the terms
+of sections 4 and 5, provided that you also convey the
+machine-readable Corresponding Source under the terms of this License,
+in one of these ways:
+
+    a) Convey the object code in, or embodied in, a physical product
+    (including a physical distribution medium), accompanied by the
+    Corresponding Source fixed on a durable physical medium
+    customarily used for software interchange.
+
+    b) Convey the object code in, or embodied in, a physical product
+    (including a physical distribution medium), accompanied by a
+    written offer, valid for at least three years and valid for as
+    long as you offer spare parts or customer support for that product
+    model, to give anyone who possesses the object code either (1) a
+    copy of the Corresponding Source for all the software in the
+    product that is covered by this License, on a durable physical
+    medium customarily used for software interchange, for a price no
+    more than your reasonable cost of physically performing this
+    conveying of source, or (2) access to copy the
+    Corresponding Source from a network server at no charge.
+
+    c) Convey individual copies of the object code with a copy of the
+    written offer to provide the Corresponding Source.  This
+    alternative is allowed only occasionally and noncommercially, and
+    only if you received the object code with such an offer, in accord
+    with subsection 6b.
+
+    d) Convey the object code by offering access from a designated
+    place (gratis or for a charge), and offer equivalent access to the
+    Corresponding Source in the same way through the same place at no
+    further charge.  You need not require recipients to copy the
+    Corresponding Source along with the object code.  If the place to
+    copy the object code is a network server, the Corresponding Source
+    may be on a different server (operated by you or a third party)
+    that supports equivalent copying facilities, provided you maintain
+    clear directions next to the object code saying where to find the
+    Corresponding Source.  Regardless of what server hosts the
+    Corresponding Source, you remain obligated to ensure that it is
+    available for as long as needed to satisfy these requirements.
+
+    e) Convey the object code using peer-to-peer transmission, provided
+    you inform other peers where the object code and Corresponding
+    Source of the work are being offered to the general public at no
+    charge under subsection 6d.
+
+  A separable portion of the object code, whose source code is excluded
+from the Corresponding Source as a System Library, need not be
+included in conveying the object code work.
+
+  A "User Product" is either (1) a "consumer product", which means any
+tangible personal property which is normally used for personal, family,
+or household purposes, or (2) anything designed or sold for incorporation
+into a dwelling.  In determining whether a product is a consumer product,
+doubtful cases shall be resolved in favor of coverage.  For a particular
+product received by a particular user, "normally used" refers to a
+typical or common use of that class of product, regardless of the status
+of the particular user or of the way in which the particular user
+actually uses, or expects or is expected to use, the product.  A product
+is a consumer product regardless of whether the product has substantial
+commercial, industrial or non-consumer uses, unless such uses represent
+the only significant mode of use of the product.
+
+  "Installation Information" for a User Product means any methods,
+procedures, authorization keys, or other information required to install
+and execute modified versions of a covered work in that User Product from
+a modified version of its Corresponding Source.  The information must
+suffice to ensure that the continued functioning of the modified object
+code is in no case prevented or interfered with solely because
+modification has been made.
+
+  If you convey an object code work under this section in, or with, or
+specifically for use in, a User Product, and the conveying occurs as
+part of a transaction in which the right of possession and use of the
+User Product is transferred to the recipient in perpetuity or for a
+fixed term (regardless of how the transaction is characterized), the
+Corresponding Source conveyed under this section must be accompanied
+by the Installation Information.  But this requirement does not apply
+if neither you nor any third party retains the ability to install
+modified object code on the User Product (for example, the work has
+been installed in ROM).
+
+  The requirement to provide Installation Information does not include a
+requirement to continue to provide support service, warranty, or updates
+for a work that has been modified or installed by the recipient, or for
+the User Product in which it has been modified or installed.  Access to a
+network may be denied when the modification itself materially and
+adversely affects the operation of the network or violates the rules and
+protocols for communication across the network.
+
+  Corresponding Source conveyed, and Installation Information provided,
+in accord with this section must be in a format that is publicly
+documented (and with an implementation available to the public in
+source code form), and must require no special password or key for
+unpacking, reading or copying.
+
+  7. Additional Terms.
+
+  "Additional permissions" are terms that supplement the terms of this
+License by making exceptions from one or more of its conditions.
+Additional permissions that are applicable to the entire Program shall
+be treated as though they were included in this License, to the extent
+that they are valid under applicable law.  If additional permissions
+apply only to part of the Program, that part may be used separately
+under those permissions, but the entire Program remains governed by
+this License without regard to the additional permissions.
+
+  When you convey a copy of a covered work, you may at your option
+remove any additional permissions from that copy, or from any part of
+it.  (Additional permissions may be written to require their own
+removal in certain cases when you modify the work.)  You may place
+additional permissions on material, added by you to a covered work,
+for which you have or can give appropriate copyright permission.
+
+  Notwithstanding any other provision of this License, for material you
+add to a covered work, you may (if authorized by the copyright holders of
+that material) supplement the terms of this License with terms:
+
+    a) Disclaiming warranty or limiting liability differently from the
+    terms of sections 15 and 16 of this License; or
+
+    b) Requiring preservation of specified reasonable legal notices or
+    author attributions in that material or in the Appropriate Legal
+    Notices displayed by works containing it; or
+
+    c) Prohibiting misrepresentation of the origin of that material, or
+    requiring that modified versions of such material be marked in
+    reasonable ways as different from the original version; or
+
+    d) Limiting the use for publicity purposes of names of licensors or
+    authors of the material; or
+
+    e) Declining to grant rights under trademark law for use of some
+    trade names, trademarks, or service marks; or
+
+    f) Requiring indemnification of licensors and authors of that
+    material by anyone who conveys the material (or modified versions of
+    it) with contractual assumptions of liability to the recipient, for
+    any liability that these contractual assumptions directly impose on
+    those licensors and authors.
+
+  All other non-permissive additional terms are considered "further
+restrictions" within the meaning of section 10.  If the Program as you
+received it, or any part of it, contains a notice stating that it is
+governed by this License along with a term that is a further
+restriction, you may remove that term.  If a license document contains
+a further restriction but permits relicensing or conveying under this
+License, you may add to a covered work material governed by the terms
+of that license document, provided that the further restriction does
+not survive such relicensing or conveying.
+
+  If you add terms to a covered work in accord with this section, you
+must place, in the relevant source files, a statement of the
+additional terms that apply to those files, or a notice indicating
+where to find the applicable terms.
+
+  Additional terms, permissive or non-permissive, may be stated in the
+form of a separately written license, or stated as exceptions;
+the above requirements apply either way.
+
+  8. Termination.
+
+  You may not propagate or modify a covered work except as expressly
+provided under this License.  Any attempt otherwise to propagate or
+modify it is void, and will automatically terminate your rights under
+this License (including any patent licenses granted under the third
+paragraph of section 11).
+
+  However, if you cease all violation of this License, then your
+license from a particular copyright holder is reinstated (a)
+provisionally, unless and until the copyright holder explicitly and
+finally terminates your license, and (b) permanently, if the copyright
+holder fails to notify you of the violation by some reasonable means
+prior to 60 days after the cessation.
+
+  Moreover, your license from a particular copyright holder is
+reinstated permanently if the copyright holder notifies you of the
+violation by some reasonable means, this is the first time you have
+received notice of violation of this License (for any work) from that
+copyright holder, and you cure the violation prior to 30 days after
+your receipt of the notice.
+
+  Termination of your rights under this section does not terminate the
+licenses of parties who have received copies or rights from you under
+this License.  If your rights have been terminated and not permanently
+reinstated, you do not qualify to receive new licenses for the same
+material under section 10.
+
+  9. Acceptance Not Required for Having Copies.
+
+  You are not required to accept this License in order to receive or
+run a copy of the Program.  Ancillary propagation of a covered work
+occurring solely as a consequence of using peer-to-peer transmission
+to receive a copy likewise does not require acceptance.  However,
+nothing other than this License grants you permission to propagate or
+modify any covered work.  These actions infringe copyright if you do
+not accept this License.  Therefore, by modifying or propagating a
+covered work, you indicate your acceptance of this License to do so.
+
+  10. Automatic Licensing of Downstream Recipients.
+
+  Each time you convey a covered work, the recipient automatically
+receives a license from the original licensors, to run, modify and
+propagate that work, subject to this License.  You are not responsible
+for enforcing compliance by third parties with this License.
+
+  An "entity transaction" is a transaction transferring control of an
+organization, or substantially all assets of one, or subdividing an
+organization, or merging organizations.  If propagation of a covered
+work results from an entity transaction, each party to that
+transaction who receives a copy of the work also receives whatever
+licenses to the work the party's predecessor in interest had or could
+give under the previous paragraph, plus a right to possession of the
+Corresponding Source of the work from the predecessor in interest, if
+the predecessor has it or can get it with reasonable efforts.
+
+  You may not impose any further restrictions on the exercise of the
+rights granted or affirmed under this License.  For example, you may
+not impose a license fee, royalty, or other charge for exercise of
+rights granted under this License, and you may not initiate litigation
+(including a cross-claim or counterclaim in a lawsuit) alleging that
+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
+
+  11. Patents.
+
+  A "contributor" is a copyright holder who authorizes use under this
+License of the Program or a work on which the Program is based.  The
+work thus licensed is called the contributor's "contributor version".
+
+  A contributor's "essential patent claims" are all patent claims
+owned or controlled by the contributor, whether already acquired or
+hereafter acquired, that would be infringed by some manner, permitted
+by this License, of making, using, or selling its contributor version,
+but do not include claims that would be infringed only as a
+consequence of further modification of the contributor version.  For
+purposes of this definition, "control" includes the right to grant
+patent sublicenses in a manner consistent with the requirements of
+this License.
+
+  Each contributor grants you a non-exclusive, worldwide, royalty-free
+patent license under the contributor's essential patent claims, to
+make, use, sell, offer for sale, import and otherwise run, modify and
+propagate the contents of its contributor version.
+
+  In the following three paragraphs, a "patent license" is any express
+agreement or commitment, however denominated, not to enforce a patent
+(such as an express permission to practice a patent or covenant not to
+sue for patent infringement).  To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+  If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients.  "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+  If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+  A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License.  You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Use with the GNU Affero General Public License.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..2415317
--- /dev/null
+++ b/README.md
@@ -0,0 +1,65 @@
+# octosentry
+
+A macOS menu bar app that aggregates GitHub security alerts — Dependabot,
+code scanning, and secret scanning — across your repos into a single,
+severity-ranked feed. No dashboard, no general-purpose GitHub browsing:
+just a fast triage view that deep-links out to github.com to act.
+
+## Features
+
+- Unified feed across all three GitHub security alert types, normalized
+  onto one severity scale
+- Source badge, repo, GitHub's own severity label, one-line summary, and
+  age for each alert
+- Click an alert to open it directly on github.com
+- Errors and unavailable sources (e.g. an alert type disabled for a repo)
+  are surfaced in the popover instead of failing silently
+- Zero third-party dependencies — pure SwiftUI and URLSession
+
+## Requirements
+
+- macOS 14 or later
+- A GitHub personal access token (fine-grained or classic) with read
+  access to Dependabot alerts, code scanning alerts, and secret scanning
+  alerts for the repo you want to watch
+
+## Usage
+
+octosentry currently watches a single, hardcoded repo and reads its
+GitHub token from the `GITHUB_TOKEN` environment variable — this is a
+development-only shortcut ahead of a proper device authorization flow.
+
+1. Build and run the app (see Building, below).
+2. Set `GITHUB_TOKEN` in your **personal, non-shared** Xcode scheme
+   (Product → Scheme → Edit Scheme… → Run → Arguments →
+   Environment Variables). Don't add it to a shared scheme — that would
+   commit the token to git.
+3. Click the shield icon in the menu bar to open the popover. It fetches
+   automatically on open, or use the refresh button.
+4. Click any alert to open it on github.com.
+
+If a source shows as unavailable, it usually means that alert type is
+disabled for the repo, or the token is missing that one permission — not
+that something is broken.
+
+## Building
+
+Open `octosentry.xcodeproj` in Xcode and run the `octosentry` scheme.
+The project targets macOS 14 with Swift 6 language mode and strict
+concurrency enabled — no package dependencies to resolve.
+
+## Contributing
+
+Issues and pull requests are welcome. A few things worth knowing before
+you start:
+
+- No third-party dependencies — this is a hard constraint, not a
+  preference.
+- Swift 6 strict concurrency is on; new code should compile clean under
+  it, not suppress it.
+- Match the existing file-per-type layout (models, mapping, API client,
+  views) rather than introducing new architectural patterns.
+
+## License
+
+GPL-3.0 — see [LICENSE](LICENSE).
diff --git a/octosentry.xcodeproj/project.pbxproj b/octosentry.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..a6c2fcc
--- /dev/null
+++ b/octosentry.xcodeproj/project.pbxproj
@@ -0,0 +1,586 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 77;
+	objects = {
+
+/* Begin PBXContainerItemProxy section */
+		8B8FD177300A873200B09EAA /* PBXContainerItemProxy */ = {
+			isa = PBXContainerItemProxy;
+			containerPortal = 8B8FD161300A873000B09EAA /* Project object */;
+			proxyType = 1;
+			remoteGlobalIDString = 8B8FD168300A873000B09EAA;
+			remoteInfo = octosentry;
+		};
+		8B8FD181300A873200B09EAA /* PBXContainerItemProxy */ = {
+			isa = PBXContainerItemProxy;
+			containerPortal = 8B8FD161300A873000B09EAA /* Project object */;
+			proxyType = 1;
+			remoteGlobalIDString = 8B8FD168300A873000B09EAA;
+			remoteInfo = octosentry;
+		};
+/* End PBXContainerItemProxy section */
+
+/* Begin PBXFileReference section */
+		8B8FD169300A873000B09EAA /* octosentry.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = octosentry.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		8B8FD176300A873200B09EAA /* octosentryTests.xctest */ = {isa = PBXFileReference; explicitFileType = wrapper.cfbundle; includeInIndex = 0; path = octosentryTests.xctest; sourceTree = BUILT_PRODUCTS_DIR; };
+		8B8FD180300A873200B09EAA /* octosentryUITests.xctest */ = {isa = PBXFileReference; explicitFileType = wrapper.cfbundle; includeInIndex = 0; path = octosentryUITests.xctest; sourceTree = BUILT_PRODUCTS_DIR; };
+/* End PBXFileReference section */
+
+/* Begin PBXFileSystemSynchronizedRootGroup section */
+		8B8FD16B300A873000B09EAA /* octosentry */ = {
+			isa = PBXFileSystemSynchronizedRootGroup;
+			path = octosentry;
+			sourceTree = "<group>";
+		};
+		8B8FD179300A873200B09EAA /* octosentryTests */ = {
+			isa = PBXFileSystemSynchronizedRootGroup;
+			path = octosentryTests;
+			sourceTree = "<group>";
+		};
+		8B8FD183300A873200B09EAA /* octosentryUITests */ = {
+			isa = PBXFileSystemSynchronizedRootGroup;
+			path = octosentryUITests;
+			sourceTree = "<group>";
+		};
+/* End PBXFileSystemSynchronizedRootGroup section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		8B8FD166300A873000B09EAA /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+		8B8FD173300A873200B09EAA /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+		8B8FD17D300A873200B09EAA /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		8B8FD160300A873000B09EAA = {
+			isa = PBXGroup;
+			children = (
+				8B8FD16B300A873000B09EAA /* octosentry */,
+				8B8FD179300A873200B09EAA /* octosentryTests */,
+				8B8FD183300A873200B09EAA /* octosentryUITests */,
+				8B8FD16A300A873000B09EAA /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		8B8FD16A300A873000B09EAA /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				8B8FD169300A873000B09EAA /* octosentry.app */,
+				8B8FD176300A873200B09EAA /* octosentryTests.xctest */,
+				8B8FD180300A873200B09EAA /* octosentryUITests.xctest */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		8B8FD168300A873000B09EAA /* octosentry */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 8B8FD18A300A873200B09EAA /* Build configuration list for PBXNativeTarget "octosentry" */;
+			buildPhases = (
+				8B8FD165300A873000B09EAA /* Sources */,
+				8B8FD166300A873000B09EAA /* Frameworks */,
+				8B8FD167300A873000B09EAA /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			fileSystemSynchronizedGroups = (
+				8B8FD16B300A873000B09EAA /* octosentry */,
+			);
+			name = octosentry;
+			packageProductDependencies = (
+			);
+			productName = octosentry;
+			productReference = 8B8FD169300A873000B09EAA /* octosentry.app */;
+			productType = "com.apple.product-type.application";
+		};
+		8B8FD175300A873200B09EAA /* octosentryTests */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 8B8FD18D300A873200B09EAA /* Build configuration list for PBXNativeTarget "octosentryTests" */;
+			buildPhases = (
+				8B8FD172300A873200B09EAA /* Sources */,
+				8B8FD173300A873200B09EAA /* Frameworks */,
+				8B8FD174300A873200B09EAA /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+				8B8FD178300A873200B09EAA /* PBXTargetDependency */,
+			);
+			fileSystemSynchronizedGroups = (
+				8B8FD179300A873200B09EAA /* octosentryTests */,
+			);
+			name = octosentryTests;
+			packageProductDependencies = (
+			);
+			productName = octosentryTests;
+			productReference = 8B8FD176300A873200B09EAA /* octosentryTests.xctest */;
+			productType = "com.apple.product-type.bundle.unit-test";
+		};
+		8B8FD17F300A873200B09EAA /* octosentryUITests */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 8B8FD190300A873200B09EAA /* Build configuration list for PBXNativeTarget "octosentryUITests" */;
+			buildPhases = (
+				8B8FD17C300A873200B09EAA /* Sources */,
+				8B8FD17D300A873200B09EAA /* Frameworks */,
+				8B8FD17E300A873200B09EAA /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+				8B8FD182300A873200B09EAA /* PBXTargetDependency */,
+			);
+			fileSystemSynchronizedGroups = (
+				8B8FD183300A873200B09EAA /* octosentryUITests */,
+			);
+			name = octosentryUITests;
+			packageProductDependencies = (
+			);
+			productName = octosentryUITests;
+			productReference = 8B8FD180300A873200B09EAA /* octosentryUITests.xctest */;
+			productType = "com.apple.product-type.bundle.ui-testing";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		8B8FD161300A873000B09EAA /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				BuildIndependentTargetsInParallel = 1;
+				LastSwiftUpdateCheck = 2660;
+				LastUpgradeCheck = 2660;
+				TargetAttributes = {
+					8B8FD168300A873000B09EAA = {
+						CreatedOnToolsVersion = 26.6;
+					};
+					8B8FD175300A873200B09EAA = {
+						CreatedOnToolsVersion = 26.6;
+						TestTargetID = 8B8FD168300A873000B09EAA;
+					};
+					8B8FD17F300A873200B09EAA = {
+						CreatedOnToolsVersion = 26.6;
+						TestTargetID = 8B8FD168300A873000B09EAA;
+					};
+				};
+			};
+			buildConfigurationList = 8B8FD164300A873000B09EAA /* Build configuration list for PBXProject "octosentry" */;
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+				Base,
+			);
+			mainGroup = 8B8FD160300A873000B09EAA;
+			minimizedProjectReferenceProxies = 1;
+			preferredProjectObjectVersion = 77;
+			productRefGroup = 8B8FD16A300A873000B09EAA /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				8B8FD168300A873000B09EAA /* octosentry */,
+				8B8FD175300A873200B09EAA /* octosentryTests */,
+				8B8FD17F300A873200B09EAA /* octosentryUITests */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		8B8FD167300A873000B09EAA /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+		8B8FD174300A873200B09EAA /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+		8B8FD17E300A873200B09EAA /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		8B8FD165300A873000B09EAA /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+		8B8FD172300A873200B09EAA /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+		8B8FD17C300A873200B09EAA /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin PBXTargetDependency section */
+		8B8FD178300A873200B09EAA /* PBXTargetDependency */ = {
+			isa = PBXTargetDependency;
+			target = 8B8FD168300A873000B09EAA /* octosentry */;
+			targetProxy = 8B8FD177300A873200B09EAA /* PBXContainerItemProxy */;
+		};
+		8B8FD182300A873200B09EAA /* PBXTargetDependency */ = {
+			isa = PBXTargetDependency;
+			target = 8B8FD168300A873000B09EAA /* octosentry */;
+			targetProxy = 8B8FD181300A873200B09EAA /* PBXContainerItemProxy */;
+		};
+/* End PBXTargetDependency section */
+
+/* Begin XCBuildConfiguration section */
+		8B8FD188300A873200B09EAA /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				ASSETCATALOG_COMPILER_GENERATE_SWIFT_ASSET_SYMBOL_EXTENSIONS = YES;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++20";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_QUOTED_INCLUDE_IN_FRAMEWORK_HEADER = YES;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = dwarf;
+				DEVELOPMENT_TEAM = ZCNAX3VL9D;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				ENABLE_TESTABILITY = YES;
+				ENABLE_USER_SCRIPT_SANDBOXING = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu17;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				LOCALIZATION_PREFERS_STRING_CATALOGS = YES;
+				MACOSX_DEPLOYMENT_TARGET = 14.0;
+				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
+				MTL_FAST_MATH = YES;
+				ONLY_ACTIVE_ARCH = YES;
+				SDKROOT = macosx;
+				SWIFT_ACTIVE_COMPILATION_CONDITIONS = "DEBUG $(inherited)";
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+			};
+			name = Debug;
+		};
+		8B8FD189300A873200B09EAA /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				ASSETCATALOG_COMPILER_GENERATE_SWIFT_ASSET_SYMBOL_EXTENSIONS = YES;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++20";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_QUOTED_INCLUDE_IN_FRAMEWORK_HEADER = YES;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				DEVELOPMENT_TEAM = ZCNAX3VL9D;
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				ENABLE_USER_SCRIPT_SANDBOXING = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu17;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				LOCALIZATION_PREFERS_STRING_CATALOGS = YES;
+				MACOSX_DEPLOYMENT_TARGET = 14.0;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				MTL_FAST_MATH = YES;
+				SDKROOT = macosx;
+				SWIFT_COMPILATION_MODE = wholemodule;
+			};
+			name = Release;
+		};
+		8B8FD18B300A873200B09EAA /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
+				CODE_SIGN_STYLE = Automatic;
+				COMBINE_HIDPI_IMAGES = YES;
+				CURRENT_PROJECT_VERSION = 1;
+				DEVELOPMENT_TEAM = ZCNAX3VL9D;
+				ENABLE_APP_SANDBOX = YES;
+				ENABLE_HARDENED_RUNTIME = YES;
+				ENABLE_OUTGOING_NETWORK_CONNECTIONS = YES;
+				ENABLE_PREVIEWS = YES;
+				ENABLE_USER_SELECTED_FILES = readonly;
+				GENERATE_INFOPLIST_FILE = YES;
+				INFOPLIST_KEY_CFBundleDisplayName = OctoSentry;
+				INFOPLIST_KEY_LSApplicationCategoryType = "public.app-category.developer-tools";
+				INFOPLIST_KEY_LSUIElement = YES;
+				INFOPLIST_KEY_NSHumanReadableCopyright = "";
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/../Frameworks",
+				);
+				MARKETING_VERSION = 1.0;
+				PRODUCT_BUNDLE_IDENTIFIER = net.cleberg.octosentry;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				REGISTER_APP_GROUPS = YES;
+				STRING_CATALOG_GENERATE_SYMBOLS = YES;
+				SWIFT_APPROACHABLE_CONCURRENCY = YES;
+				SWIFT_DEFAULT_ACTOR_ISOLATION = MainActor;
+				SWIFT_EMIT_LOC_STRINGS = YES;
+				SWIFT_UPCOMING_FEATURE_MEMBER_IMPORT_VISIBILITY = YES;
+				SWIFT_VERSION = 6.0;
+			};
+			name = Debug;
+		};
+		8B8FD18C300A873200B09EAA /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
+				CODE_SIGN_STYLE = Automatic;
+				COMBINE_HIDPI_IMAGES = YES;
+				CURRENT_PROJECT_VERSION = 1;
+				DEVELOPMENT_TEAM = ZCNAX3VL9D;
+				ENABLE_APP_SANDBOX = YES;
+				ENABLE_HARDENED_RUNTIME = YES;
+				ENABLE_OUTGOING_NETWORK_CONNECTIONS = YES;
+				ENABLE_PREVIEWS = YES;
+				ENABLE_USER_SELECTED_FILES = readonly;
+				GENERATE_INFOPLIST_FILE = YES;
+				INFOPLIST_KEY_CFBundleDisplayName = OctoSentry;
+				INFOPLIST_KEY_LSApplicationCategoryType = "public.app-category.developer-tools";
+				INFOPLIST_KEY_LSUIElement = YES;
+				INFOPLIST_KEY_NSHumanReadableCopyright = "";
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/../Frameworks",
+				);
+				MARKETING_VERSION = 1.0;
+				PRODUCT_BUNDLE_IDENTIFIER = net.cleberg.octosentry;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				REGISTER_APP_GROUPS = YES;
+				STRING_CATALOG_GENERATE_SYMBOLS = YES;
+				SWIFT_APPROACHABLE_CONCURRENCY = YES;
+				SWIFT_DEFAULT_ACTOR_ISOLATION = MainActor;
+				SWIFT_EMIT_LOC_STRINGS = YES;
+				SWIFT_UPCOMING_FEATURE_MEMBER_IMPORT_VISIBILITY = YES;
+				SWIFT_VERSION = 6.0;
+			};
+			name = Release;
+		};
+		8B8FD18E300A873200B09EAA /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				BUNDLE_LOADER = "$(TEST_HOST)";
+				CODE_SIGN_STYLE = Automatic;
+				CURRENT_PROJECT_VERSION = 1;
+				DEVELOPMENT_TEAM = ZCNAX3VL9D;
+				GENERATE_INFOPLIST_FILE = YES;
+				MACOSX_DEPLOYMENT_TARGET = 14.0;
+				MARKETING_VERSION = 1.0;
+				PRODUCT_BUNDLE_IDENTIFIER = net.cleberg.octosentryTests;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				STRING_CATALOG_GENERATE_SYMBOLS = NO;
+				SWIFT_APPROACHABLE_CONCURRENCY = YES;
+				SWIFT_EMIT_LOC_STRINGS = NO;
+				SWIFT_UPCOMING_FEATURE_MEMBER_IMPORT_VISIBILITY = YES;
+				SWIFT_VERSION = 6.0;
+				TEST_HOST = "$(BUILT_PRODUCTS_DIR)/octosentry.app/$(BUNDLE_EXECUTABLE_FOLDER_PATH)/octosentry";
+			};
+			name = Debug;
+		};
+		8B8FD18F300A873200B09EAA /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				BUNDLE_LOADER = "$(TEST_HOST)";
+				CODE_SIGN_STYLE = Automatic;
+				CURRENT_PROJECT_VERSION = 1;
+				DEVELOPMENT_TEAM = ZCNAX3VL9D;
+				GENERATE_INFOPLIST_FILE = YES;
+				MACOSX_DEPLOYMENT_TARGET = 14.0;
+				MARKETING_VERSION = 1.0;
+				PRODUCT_BUNDLE_IDENTIFIER = net.cleberg.octosentryTests;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				STRING_CATALOG_GENERATE_SYMBOLS = NO;
+				SWIFT_APPROACHABLE_CONCURRENCY = YES;
+				SWIFT_EMIT_LOC_STRINGS = NO;
+				SWIFT_UPCOMING_FEATURE_MEMBER_IMPORT_VISIBILITY = YES;
+				SWIFT_VERSION = 6.0;
+				TEST_HOST = "$(BUILT_PRODUCTS_DIR)/octosentry.app/$(BUNDLE_EXECUTABLE_FOLDER_PATH)/octosentry";
+			};
+			name = Release;
+		};
+		8B8FD191300A873200B09EAA /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				CODE_SIGN_STYLE = Automatic;
+				CURRENT_PROJECT_VERSION = 1;
+				DEVELOPMENT_TEAM = ZCNAX3VL9D;
+				GENERATE_INFOPLIST_FILE = YES;
+				MARKETING_VERSION = 1.0;
+				PRODUCT_BUNDLE_IDENTIFIER = net.cleberg.octosentryUITests;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				STRING_CATALOG_GENERATE_SYMBOLS = NO;
+				SWIFT_APPROACHABLE_CONCURRENCY = YES;
+				SWIFT_EMIT_LOC_STRINGS = NO;
+				SWIFT_UPCOMING_FEATURE_MEMBER_IMPORT_VISIBILITY = YES;
+				SWIFT_VERSION = 6.0;
+				TEST_TARGET_NAME = octosentry;
+			};
+			name = Debug;
+		};
+		8B8FD192300A873200B09EAA /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				CODE_SIGN_STYLE = Automatic;
+				CURRENT_PROJECT_VERSION = 1;
+				DEVELOPMENT_TEAM = ZCNAX3VL9D;
+				GENERATE_INFOPLIST_FILE = YES;
+				MARKETING_VERSION = 1.0;
+				PRODUCT_BUNDLE_IDENTIFIER = net.cleberg.octosentryUITests;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				STRING_CATALOG_GENERATE_SYMBOLS = NO;
+				SWIFT_APPROACHABLE_CONCURRENCY = YES;
+				SWIFT_EMIT_LOC_STRINGS = NO;
+				SWIFT_UPCOMING_FEATURE_MEMBER_IMPORT_VISIBILITY = YES;
+				SWIFT_VERSION = 6.0;
+				TEST_TARGET_NAME = octosentry;
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		8B8FD164300A873000B09EAA /* Build configuration list for PBXProject "octosentry" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				8B8FD188300A873200B09EAA /* Debug */,
+				8B8FD189300A873200B09EAA /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		8B8FD18A300A873200B09EAA /* Build configuration list for PBXNativeTarget "octosentry" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				8B8FD18B300A873200B09EAA /* Debug */,
+				8B8FD18C300A873200B09EAA /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		8B8FD18D300A873200B09EAA /* Build configuration list for PBXNativeTarget "octosentryTests" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				8B8FD18E300A873200B09EAA /* Debug */,
+				8B8FD18F300A873200B09EAA /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		8B8FD190300A873200B09EAA /* Build configuration list for PBXNativeTarget "octosentryUITests" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				8B8FD191300A873200B09EAA /* Debug */,
+				8B8FD192300A873200B09EAA /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 8B8FD161300A873000B09EAA /* Project object */;
+}
diff --git a/octosentry.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/octosentry.xcodeproj/project.xcworkspace/contents.xcworkspacedata
new file mode 100644
index 0000000..919434a
--- /dev/null
+++ b/octosentry.xcodeproj/project.xcworkspace/contents.xcworkspacedata
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:">
+   </FileRef>
+</Workspace>
diff --git a/octosentry.xcodeproj/xcshareddata/xcschemes/octosentry.xcscheme b/octosentry.xcodeproj/xcshareddata/xcschemes/octosentry.xcscheme
new file mode 100644
index 0000000..e45fdf6
--- /dev/null
+++ b/octosentry.xcodeproj/xcshareddata/xcschemes/octosentry.xcscheme
@@ -0,0 +1,103 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "2660"
+   version = "1.7">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES"
+      buildArchitectures = "Automatic">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "8B8FD168300A873000B09EAA"
+               BuildableName = "octosentry.app"
+               BlueprintName = "octosentry"
+               ReferencedContainer = "container:octosentry.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      shouldAutocreateTestPlan = "YES">
+      <Testables>
+         <TestableReference
+            skipped = "NO"
+            parallelizable = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "8B8FD175300A873200B09EAA"
+               BuildableName = "octosentryTests.xctest"
+               BlueprintName = "octosentryTests"
+               ReferencedContainer = "container:octosentry.xcodeproj">
+            </BuildableReference>
+         </TestableReference>
+         <TestableReference
+            skipped = "NO"
+            parallelizable = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "8B8FD17F300A873200B09EAA"
+               BuildableName = "octosentryUITests.xctest"
+               BlueprintName = "octosentryUITests"
+               ReferencedContainer = "container:octosentry.xcodeproj">
+            </BuildableReference>
+         </TestableReference>
+      </Testables>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES"
+      queueDebuggingEnableBacktraceRecording = "Yes">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "8B8FD168300A873000B09EAA"
+            BuildableName = "octosentry.app"
+            BlueprintName = "octosentry"
+            ReferencedContainer = "container:octosentry.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "8B8FD168300A873000B09EAA"
+            BuildableName = "octosentry.app"
+            BlueprintName = "octosentry"
+            ReferencedContainer = "container:octosentry.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>
diff --git a/octosentry/Assets.xcassets/AccentColor.colorset/Contents.json b/octosentry/Assets.xcassets/AccentColor.colorset/Contents.json
new file mode 100644
index 0000000..eb87897
--- /dev/null
+++ b/octosentry/Assets.xcassets/AccentColor.colorset/Contents.json
@@ -0,0 +1,11 @@
+{
+  "colors" : [
+    {
+      "idiom" : "universal"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}
diff --git a/octosentry/Assets.xcassets/AppIcon.appiconset/Contents.json b/octosentry/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..3f00db4
--- /dev/null
+++ b/octosentry/Assets.xcassets/AppIcon.appiconset/Contents.json
@@ -0,0 +1,58 @@
+{
+  "images" : [
+    {
+      "idiom" : "mac",
+      "scale" : "1x",
+      "size" : "16x16"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "2x",
+      "size" : "16x16"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "1x",
+      "size" : "32x32"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "2x",
+      "size" : "32x32"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "1x",
+      "size" : "128x128"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "2x",
+      "size" : "128x128"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "1x",
+      "size" : "256x256"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "2x",
+      "size" : "256x256"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "1x",
+      "size" : "512x512"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "2x",
+      "size" : "512x512"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}
diff --git a/octosentry/Assets.xcassets/Contents.json b/octosentry/Assets.xcassets/Contents.json
new file mode 100644
index 0000000..73c0059
--- /dev/null
+++ b/octosentry/Assets.xcassets/Contents.json
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}
diff --git a/octosentry/GitHubAPIError.swift b/octosentry/GitHubAPIError.swift
new file mode 100644
index 0000000..7baf918
--- /dev/null
+++ b/octosentry/GitHubAPIError.swift
@@ -0,0 +1,41 @@
+//
+//  GitHubAPIError.swift
+//  octosentry
+//
+
+import Foundation
+
+enum GitHubAPIError: Error, LocalizedError, Sendable {
+    case missingToken
+    case network(String)
+    case invalidResponse
+    case unauthorized
+    case forbidden
+    case notFound
+    case rateLimited
+    case httpError(status: Int)
+    case decodingFailed(String)
+
+    var errorDescription: String? {
+        switch self {
+        case .missingToken:
+            "No GitHub token found in the GITHUB_TOKEN environment variable."
+        case .network(let message):
+            "Network error: \(message)"
+        case .invalidResponse:
+            "Received an unexpected response from GitHub."
+        case .unauthorized:
+            "GitHub rejected the token (401 Unauthorized)."
+        case .forbidden:
+            "Token lacks permission for this alert type (403 Forbidden)."
+        case .notFound:
+            "Repository or endpoint not found (404)."
+        case .rateLimited:
+            "GitHub API rate limit exceeded (429)."
+        case .httpError(let status):
+            "GitHub API returned HTTP \(status)."
+        case .decodingFailed(let message):
+            "Failed to parse GitHub API response: \(message)"
+        }
+    }
+}
diff --git a/octosentry/GitHubAPIModels.swift b/octosentry/GitHubAPIModels.swift
new file mode 100644
index 0000000..3a84aa8
--- /dev/null
+++ b/octosentry/GitHubAPIModels.swift
@@ -0,0 +1,88 @@
+//
+//  GitHubAPIModels.swift
+//  octosentry
+//
+//  Decodable wire types for the three GitHub REST alert endpoints. Kept
+//  private to this file — GitHubSecurityAPIClient maps them into SecurityEvent.
+//
+
+import Foundation
+
+nonisolated struct DependabotAlertDTO: Decodable {
+    let number: Int
+    let htmlUrl: URL
+    let createdAt: Date
+    let updatedAt: Date
+    let securityAdvisory: SecurityAdvisory
+
+    struct SecurityAdvisory: Decodable {
+        let summary: String
+        let severity: String
+    }
+
+    enum CodingKeys: String, CodingKey {
+        case number
+        case htmlUrl = "html_url"
+        case createdAt = "created_at"
+        case updatedAt = "updated_at"
+        case securityAdvisory = "security_advisory"
+    }
+}
+
+nonisolated struct CodeScanningAlertDTO: Decodable {
+    let number: Int
+    let htmlUrl: URL
+    let createdAt: Date
+    let updatedAt: Date
+    let rule: Rule
+    let mostRecentInstance: MostRecentInstance?
+
+    struct Rule: Decodable {
+        let id: String?
+        let description: String?
+        let severity: String?
+        let securitySeverityLevel: String?
+
+        enum CodingKeys: String, CodingKey {
+            case id
+            case description
+            case severity
+            case securitySeverityLevel = "security_severity_level"
+        }
+    }
+
+    struct MostRecentInstance: Decodable {
+        let message: Message?
+
+        struct Message: Decodable {
+            let text: String?
+        }
+    }
+
+    enum CodingKeys: String, CodingKey {
+        case number
+        case htmlUrl = "html_url"
+        case createdAt = "created_at"
+        case updatedAt = "updated_at"
+        case rule
+        case mostRecentInstance = "most_recent_instance"
+    }
+}
+
+nonisolated struct SecretScanningAlertDTO: Decodable {
+    let number: Int
+    let htmlUrl: URL
+    let createdAt: Date
+    let updatedAt: Date
+    let secretTypeDisplayName: String
+    let validity: String?
+
+    enum CodingKeys: String, CodingKey {
+        case number
+        case htmlUrl = "html_url"
+        case createdAt = "created_at"
+        case updatedAt = "updated_at"
+        case secretTypeDisplayName = "secret_type_display_name"
+        case validity
+    }
+}
diff --git a/octosentry/GitHubSecurityAPIClient.swift b/octosentry/GitHubSecurityAPIClient.swift
new file mode 100644
index 0000000..629699a
--- /dev/null
+++ b/octosentry/GitHubSecurityAPIClient.swift
@@ -0,0 +1,168 @@
+//
+//  GitHubSecurityAPIClient.swift
+//  octosentry
+//
+//  Fetches Dependabot, code scanning, and secret scanning alerts for a
+//  single repo and normalizes them into SecurityEvent. Auth is a PAT read
+//  by the caller from the GITHUB_TOKEN environment variable — a dev-only
+//  shortcut ahead of the device authorization flow (spec §6, §13).
+//
+
+import Foundation
+
+actor GitHubSecurityAPIClient {
+    private let token: String
+    private let session: URLSession
+    private let baseURL = URL(string: "https://api.github.com")!
+
+    private static let decoder: JSONDecoder = {
+        let decoder = JSONDecoder()
+        decoder.dateDecodingStrategy = .iso8601
+        return decoder
+    }()
+
+    init(token: String, session: URLSession = .shared) {
+        self.token = token
+        self.session = session
+    }
+
+    func fetchDependabotAlerts(owner: String, repo: String) async throws -> [SecurityEvent] {
+        let url = alertsURL(owner: owner, repo: repo, path: "dependabot/alerts")
+        let dtos: [DependabotAlertDTO] = try await fetchAllPages(url: url)
+        let repoFullName = "\(owner)/\(repo)"
+        return dtos.map { dto in
+            SecurityEvent(
+                id: "dependabot-\(repoFullName)-\(dto.number)",
+                source: .dependabot,
+                repoFullName: repoFullName,
+                severity: SeverityMapping.dependabot(dto.securityAdvisory.severity),
+                nativeSeverityLabel: dto.securityAdvisory.severity.capitalized,
+                summary: dto.securityAdvisory.summary,
+                detailURL: dto.htmlUrl,
+                createdAt: dto.createdAt,
+                updatedAt: dto.updatedAt,
+                seenLocally: false
+            )
+        }
+    }
+
+    func fetchCodeScanningAlerts(owner: String, repo: String) async throws -> [SecurityEvent] {
+        let url = alertsURL(owner: owner, repo: repo, path: "code-scanning/alerts")
+        let dtos: [CodeScanningAlertDTO] = try await fetchAllPages(url: url)
+        let repoFullName = "\(owner)/\(repo)"
+        return dtos.map { dto in
+            SecurityEvent(
+                id: "codeScanning-\(repoFullName)-\(dto.number)",
+                source: .codeScanning,
+                repoFullName: repoFullName,
+                severity: SeverityMapping.codeScanning(
+                    securitySeverityLevel: dto.rule.securitySeverityLevel,
+                    ruleSeverity: dto.rule.severity
+                ),
+                nativeSeverityLabel: (dto.rule.securitySeverityLevel ?? dto.rule.severity ?? "unknown").capitalized,
+                summary: dto.mostRecentInstance?.message?.text ?? dto.rule.description ?? dto.rule.id ?? "Code scanning alert",
+                detailURL: dto.htmlUrl,
+                createdAt: dto.createdAt,
+                updatedAt: dto.updatedAt,
+                seenLocally: false
+            )
+        }
+    }
+
+    func fetchSecretScanningAlerts(owner: String, repo: String) async throws -> [SecurityEvent] {
+        let url = alertsURL(owner: owner, repo: repo, path: "secret-scanning/alerts")
+        let dtos: [SecretScanningAlertDTO] = try await fetchAllPages(url: url)
+        let repoFullName = "\(owner)/\(repo)"
+        return dtos.map { dto in
+            SecurityEvent(
+                id: "secretScanning-\(repoFullName)-\(dto.number)",
+                source: .secretScanning,
+                repoFullName: repoFullName,
+                severity: SeverityMapping.secretScanning(validity: dto.validity),
+                nativeSeverityLabel: (dto.validity ?? "unknown").capitalized,
+                summary: dto.secretTypeDisplayName,
+                detailURL: dto.htmlUrl,
+                createdAt: dto.createdAt,
+                updatedAt: dto.updatedAt,
+                seenLocally: false
+            )
+        }
+    }
+
+    private func alertsURL(owner: String, repo: String, path: String) -> URL {
+        var components = URLComponents(url: baseURL, resolvingAgainstBaseURL: false)!
+        components.path = "/repos/\(owner)/\(repo)/\(path)"
+        components.queryItems = [
+            URLQueryItem(name: "state", value: "open"),
+            URLQueryItem(name: "per_page", value: "100"),
+        ]
+        return components.url!
+    }
+
+    /// Follows the `Link: rel="next"` header until GitHub stops returning one,
+    /// since these endpoints paginate (default 30, up to 100 per page) rather
+    /// than returning every open alert in one response.
+    private func fetchAllPages<T: Decodable>(url: URL) async throws -> [T] {
+        var results: [T] = []
+        var nextURL: URL? = url
+        while let currentURL = nextURL {
+            let (data, response) = try await fetchData(url: currentURL)
+            results += try decode(data)
+            nextURL = nextPageURL(from: response)
+        }
+        return results
+    }
+
+    private func nextPageURL(from response: HTTPURLResponse) -> URL? {
+        guard let linkHeader = response.value(forHTTPHeaderField: "Link") else { return nil }
+        for part in linkHeader.components(separatedBy: ",") {
+            let segments = part.components(separatedBy: ";").map { $0.trimmingCharacters(in: .whitespaces) }
+            guard segments.count >= 2, segments[1] == "rel=\"next\"" else { continue }
+            let urlString = segments[0].trimmingCharacters(in: CharacterSet(charactersIn: "<>"))
+            return URL(string: urlString)
+        }
+        return nil
+    }
+
+    private func fetchData(url: URL) async throws -> (data: Data, response: HTTPURLResponse) {
+        var request = URLRequest(url: url)
+        request.setValue("Bearer \(token)", forHTTPHeaderField: "Authorization")
+        request.setValue("application/vnd.github+json", forHTTPHeaderField: "Accept")
+        request.setValue("2022-11-28", forHTTPHeaderField: "X-GitHub-Api-Version")
+
+        let data: Data
+        let response: URLResponse
+        do {
+            (data, response) = try await session.data(for: request)
+        } catch {
+            throw GitHubAPIError.network(error.localizedDescription)
+        }
+
+        guard let httpResponse = response as? HTTPURLResponse else {
+            throw GitHubAPIError.invalidResponse
+        }
+
+        switch httpResponse.statusCode {
+        case 200:
+            return (data, httpResponse)
+        case 401:
+            throw GitHubAPIError.unauthorized
+        case 403:
+            throw GitHubAPIError.forbidden
+        case 404:
+            throw GitHubAPIError.notFound
+        case 429:
+            throw GitHubAPIError.rateLimited
+        default:
+            throw GitHubAPIError.httpError(status: httpResponse.statusCode)
+        }
+    }
+
+    private func decode<T: Decodable>(_ data: Data) throws -> T {
+        do {
+            return try Self.decoder.decode(T.self, from: data)
+        } catch {
+            throw GitHubAPIError.decodingFailed(error.localizedDescription)
+        }
+    }
+}
diff --git a/octosentry/SecurityEvent.swift b/octosentry/SecurityEvent.swift
new file mode 100644
index 0000000..ca5de0d
--- /dev/null
+++ b/octosentry/SecurityEvent.swift
@@ -0,0 +1,19 @@
+//
+//  SecurityEvent.swift
+//  octosentry
+//
+
+import Foundation
+
+struct SecurityEvent: Identifiable, Codable, Sendable {
+    let id: String
+    let source: SecurityEventSource
+    let repoFullName: String
+    let severity: SecurityEventSeverity
+    let nativeSeverityLabel: String
+    let summary: String
+    let detailURL: URL
+    let createdAt: Date
+    let updatedAt: Date
+    var seenLocally: Bool
+}
diff --git a/octosentry/SecurityEventListView.swift b/octosentry/SecurityEventListView.swift
new file mode 100644
index 0000000..4542275
--- /dev/null
+++ b/octosentry/SecurityEventListView.swift
@@ -0,0 +1,143 @@
+//
+//  SecurityEventListView.swift
+//  octosentry
+//
+
+import AppKit
+import SwiftUI
+
+struct SecurityEventListView: View {
+    var store: SecurityEventStore
+
+    var body: some View {
+        VStack(alignment: .leading, spacing: 0) {
+            header
+            Divider()
+            content
+        }
+        .frame(width: 380, height: 420)
+        .task {
+            await store.refresh()
+        }
+    }
+
+    private var header: some View {
+        HStack {
+            Text("Security Events")
+                .font(.headline)
+
+            if store.isLoading {
+                ProgressView()
+                    .controlSize(.small)
+            }
+
+            Spacer()
+
+            Button {
+                Task { await store.refresh() }
+            } label: {
+                Image(systemName: "arrow.clockwise")
+            }
+            .buttonStyle(.plain)
+            .disabled(store.isLoading)
+
+            Button("Quit") {
+                NSApplication.shared.terminate(nil)
+            }
+            .buttonStyle(.plain)
+            .foregroundStyle(.secondary)
+        }
+        .padding(12)
+    }
+
+    @ViewBuilder
+    private var content: some View {
+        if store.events.isEmpty && !store.errorMessages.isEmpty {
+            StatusView(systemImage: "exclamationmark.triangle", tint: .orange, message: store.errorMessages.joined(separator: "\n\n"))
+        } else if store.events.isEmpty && !store.isLoading {
+            VStack(spacing: 8) {
+                StatusView(systemImage: "checkmark.shield", tint: .green, message: "No open security alerts")
+                if !store.unavailableNotices.isEmpty {
+                    NoticeBanner(messages: store.unavailableNotices)
+                        .padding(.horizontal)
+                        .padding(.bottom)
+                }
+            }
+        } else {
+            ScrollView {
+                LazyVStack(alignment: .leading, spacing: 0) {
+                    if !store.errorMessages.isEmpty {
+                        ErrorBanner(messages: store.errorMessages)
+                        Divider()
+                    }
+                    if !store.unavailableNotices.isEmpty {
+                        NoticeBanner(messages: store.unavailableNotices)
+                        Divider()
+                    }
+                    ForEach(store.events) { event in
+                        SecurityEventRow(event: event)
+                        Divider()
+                    }
+                }
+            }
+        }
+    }
+}
+
+private struct ErrorBanner: View {
+    let messages: [String]
+
+    var body: some View {
+        VStack(alignment: .leading, spacing: 4) {
+            ForEach(messages, id: \.self) { message in
+                Label(message, systemImage: "exclamationmark.triangle")
+                    .font(.caption)
+                    .foregroundStyle(.orange)
+            }
+        }
+        .frame(maxWidth: .infinity, alignment: .leading)
+        .padding(10)
+        .background(.orange.opacity(0.1))
+    }
+}
+
+private struct NoticeBanner: View {
+    let messages: [String]
+
+    var body: some View {
+        VStack(alignment: .leading, spacing: 4) {
+            ForEach(messages, id: \.self) { message in
+                Label(message, systemImage: "info.circle")
+                    .font(.caption2)
+                    .foregroundStyle(.secondary)
+            }
+        }
+        .frame(maxWidth: .infinity, alignment: .leading)
+        .padding(10)
+        .background(.secondary.opacity(0.08))
+    }
+}
+
+private struct StatusView: View {
+    let systemImage: String
+    let tint: Color
+    let message: String
+
+    var body: some View {
+        VStack(spacing: 8) {
+            Image(systemName: systemImage)
+                .font(.title2)
+                .foregroundStyle(tint)
+            Text(message)
+                .font(.callout)
+                .multilineTextAlignment(.center)
+                .foregroundStyle(.secondary)
+        }
+        .padding()
+        .frame(maxWidth: .infinity, maxHeight: .infinity)
+    }
+}
+
+#Preview {
+    SecurityEventListView(store: SecurityEventStore())
+}
diff --git a/octosentry/SecurityEventRow.swift b/octosentry/SecurityEventRow.swift
new file mode 100644
index 0000000..9a73037
--- /dev/null
+++ b/octosentry/SecurityEventRow.swift
@@ -0,0 +1,73 @@
+//
+//  SecurityEventRow.swift
+//  octosentry
+//
+
+import AppKit
+import SwiftUI
+
+struct SecurityEventRow: View {
+    let event: SecurityEvent
+
+    private static let relativeFormatter: RelativeDateTimeFormatter = {
+        let formatter = RelativeDateTimeFormatter()
+        formatter.unitsStyle = .abbreviated
+        return formatter
+    }()
+
+    var body: some View {
+        Button {
+            NSWorkspace.shared.open(event.detailURL)
+        } label: {
+            VStack(alignment: .leading, spacing: 3) {
+                HStack(spacing: 6) {
+                    Text(event.nativeSeverityLabel.uppercased())
+                        .font(.caption2.weight(.bold))
+                        .foregroundStyle(event.severity.color)
+                        .padding(.horizontal, 6)
+                        .padding(.vertical, 2)
+                        .background(event.severity.color.opacity(0.18), in: Capsule())
+
+                    Text(event.source.displayName)
+                        .font(.caption2.weight(.semibold))
+                        .padding(.horizontal, 6)
+                        .padding(.vertical, 2)
+                        .background(.secondary.opacity(0.15), in: Capsule())
+
+                    Text(event.repoFullName)
+                        .font(.caption)
+                        .foregroundStyle(.secondary)
+
+                    Spacer()
+
+                    Text(Self.relativeFormatter.localizedString(for: event.createdAt, relativeTo: .now))
+                        .font(.caption2)
+                        .foregroundStyle(.secondary)
+                }
+
+                Text(event.summary)
+                    .font(.callout)
+                    .lineLimit(1)
+                    .foregroundStyle(.primary)
+            }
+            .padding(10)
+            .contentShape(Rectangle())
+        }
+        .buttonStyle(.plain)
+    }
+}
+
+#Preview {
+    SecurityEventRow(event: SecurityEvent(
+        id: "preview-1",
+        source: .dependabot,
+        repoFullName: "zerolabsco/octosentry",
+        severity: .critical,
+        nativeSeverityLabel: "Critical",
+        summary: "Denial of service in some-package",
+        detailURL: URL(string: "https://github.com")!,
+        createdAt: .now.addingTimeInterval(-3600 * 26),
+        updatedAt: .now,
+        seenLocally: false
+    ))
+}
diff --git a/octosentry/SecurityEventSeverity.swift b/octosentry/SecurityEventSeverity.swift
new file mode 100644
index 0000000..f975639
--- /dev/null
+++ b/octosentry/SecurityEventSeverity.swift
@@ -0,0 +1,35 @@
+//
+//  SecurityEventSeverity.swift
+//  octosentry
+//
+
+import SwiftUI
+
+enum SecurityEventSeverity: Int, Codable, Comparable, CaseIterable {
+    case low
+    case medium
+    case high
+    case critical
+
+    static func < (lhs: SecurityEventSeverity, rhs: SecurityEventSeverity) -> Bool {
+        lhs.rawValue < rhs.rawValue
+    }
+
+    var displayName: String {
+        switch self {
+        case .low: "Low"
+        case .medium: "Medium"
+        case .high: "High"
+        case .critical: "Critical"
+        }
+    }
+
+    var color: Color {
+        switch self {
+        case .low: .blue
+        case .medium: .yellow
+        case .high: .orange
+        case .critical: .red
+        }
+    }
+}
diff --git a/octosentry/SecurityEventSource.swift b/octosentry/SecurityEventSource.swift
new file mode 100644
index 0000000..9c68296
--- /dev/null
+++ b/octosentry/SecurityEventSource.swift
@@ -0,0 +1,20 @@
+//
+//  SecurityEventSource.swift
+//  octosentry
+//
+
+import Foundation
+
+enum SecurityEventSource: String, Codable, CaseIterable {
+    case dependabot
+    case codeScanning
+    case secretScanning
+
+    var displayName: String {
+        switch self {
+        case .dependabot: "Dependabot"
+        case .codeScanning: "CodeQL"
+        case .secretScanning: "Secret Scanning"
+        }
+    }
+}
diff --git a/octosentry/SecurityEventStore.swift b/octosentry/SecurityEventStore.swift
new file mode 100644
index 0000000..a45d5c7
--- /dev/null
+++ b/octosentry/SecurityEventStore.swift
@@ -0,0 +1,93 @@
+//
+//  SecurityEventStore.swift
+//  octosentry
+//
+//  Holds the fetched event stream for the popover. MVP scope: one
+//  hardcoded repo, in-memory only, PAT read from GITHUB_TOKEN (spec §13).
+//
+//  Each alert source is fetched independently so a problem with one
+//  endpoint doesn't blank out the other two. A 403/404 on a single source
+//  usually just means that alert type is disabled for the repo (or the
+//  token lacks that one permission) — not a real failure — so those are
+//  reported as quiet "unavailable" notices rather than alarming errors.
+//
+
+import Foundation
+import Observation
+
+@Observable
+final class SecurityEventStore {
+    private(set) var events: [SecurityEvent] = []
+    private(set) var isLoading = false
+    private(set) var errorMessages: [String] = []
+    private(set) var unavailableNotices: [String] = []
+
+    private let owner = "ccleberg"
+    private let repo = "cleberg.net"
+
+    func refresh() async {
+        isLoading = true
+        errorMessages = []
+        unavailableNotices = []
+        defer { isLoading = false }
+
+        guard let token = ProcessInfo.processInfo.environment["GITHUB_TOKEN"], !token.isEmpty else {
+            errorMessages = [GitHubAPIError.missingToken.errorDescription ?? "Missing GITHUB_TOKEN."]
+            return
+        }
+
+        let client = GitHubSecurityAPIClient(token: token)
+
+        async let dependabot = fetchSource(label: "Dependabot") {
+            try await client.fetchDependabotAlerts(owner: self.owner, repo: self.repo)
+        }
+        async let codeScanning = fetchSource(label: "Code scanning") {
+            try await client.fetchCodeScanningAlerts(owner: self.owner, repo: self.repo)
+        }
+        async let secretScanning = fetchSource(label: "Secret scanning") {
+            try await client.fetchSecretScanningAlerts(owner: self.owner, repo: self.repo)
+        }
+
+        let outcomes = await [dependabot, codeScanning, secretScanning]
+
+        var fetchedEvents: [SecurityEvent] = []
+        var errors: [String] = []
+        var notices: [String] = []
+        for outcome in outcomes {
+            switch outcome {
+            case .events(let sourceEvents):
+                fetchedEvents += sourceEvents
+            case .unavailable(let label):
+                notices.append("\(label) alerts aren't available for this repo (disabled, or token lacks that permission).")
+            case .failed(let label, let message):
+                errors.append("\(label): \(message)")
+            }
+        }
+
+        events = fetchedEvents.sorted { lhs, rhs in
+            lhs.severity != rhs.severity ? lhs.severity > rhs.severity : lhs.createdAt > rhs.createdAt
+        }
+        errorMessages = errors
+        unavailableNotices = notices
+    }
+
+    private enum SourceOutcome {
+        case events([SecurityEvent])
+        case unavailable(label: String)
+        case failed(label: String, message: String)
+    }
+
+    private func fetchSource(
+        label: String,
+        _ operation: () async throws -> [SecurityEvent]
+    ) async -> SourceOutcome {
+        do {
+            return .events(try await operation())
+        } catch GitHubAPIError.forbidden, GitHubAPIError.notFound {
+            return .unavailable(label: label)
+        } catch {
+            let description = (error as? LocalizedError)?.errorDescription ?? error.localizedDescription
+            return .failed(label: label, message: description)
+        }
+    }
+}
diff --git a/octosentry/SeverityMapping.swift b/octosentry/SeverityMapping.swift
new file mode 100644
index 0000000..5befb46
--- /dev/null
+++ b/octosentry/SeverityMapping.swift
@@ -0,0 +1,52 @@
+//
+//  SeverityMapping.swift
+//  octosentry
+//
+//  Normalizes each GitHub alert source's native severity vocabulary into
+//  the shared SecurityEventSeverity scale. Kept as a single auditable
+//  source file per the spec (§4) rather than scattered across the client.
+//
+
+import Foundation
+
+nonisolated enum SeverityMapping {
+    /// Dependabot alerts report CVSS-derived severity on the vulnerability object.
+    static func dependabot(_ nativeSeverity: String) -> SecurityEventSeverity {
+        switch nativeSeverity.lowercased() {
+        case "critical": .critical
+        case "high": .high
+        case "moderate", "medium": .medium
+        case "low": .low
+        default: .medium
+        }
+    }
+
+    /// Code scanning alerts expose `rule.security_severity_level` (CVSS-derived) when
+    /// present, falling back to `rule.severity` (note/warning/error) otherwise.
+    static func codeScanning(securitySeverityLevel: String?, ruleSeverity: String?) -> SecurityEventSeverity {
+        if let securitySeverityLevel {
+            switch securitySeverityLevel.lowercased() {
+            case "critical": return .critical
+            case "high": return .high
+            case "medium": return .medium
+            case "low": return .low
+            default: break
+            }
+        }
+        switch ruleSeverity?.lowercased() {
+        case "error": return .high
+        case "warning": return .medium
+        case "note": return .low
+        default: return .medium
+        }
+    }
+
+    /// Secret scanning has no native severity field. Per spec: validated/active
+    /// secrets are treated as critical, unvalidated ones as high.
+    static func secretScanning(validity: String?) -> SecurityEventSeverity {
+        switch validity?.lowercased() {
+        case "active": .critical
+        default: .high
+        }
+    }
+}
diff --git a/octosentry/octosentryApp.swift b/octosentry/octosentryApp.swift
new file mode 100644
index 0000000..4d5a859
--- /dev/null
+++ b/octosentry/octosentryApp.swift
@@ -0,0 +1,20 @@
+//
+//  octosentryApp.swift
+//  octosentry
+//
+//  Created by cmc on 2026-07-17.
+//
+
+import SwiftUI
+
+@main
+struct octosentryApp: App {
+    @State private var store = SecurityEventStore()
+
+    var body: some Scene {
+        MenuBarExtra("OctoSentry", systemImage: "shield.lefthalf.filled") {
+            SecurityEventListView(store: store)
+        }
+        .menuBarExtraStyle(.window)
+    }
+}
diff --git a/octosentryTests/octosentryTests.swift b/octosentryTests/octosentryTests.swift
new file mode 100644
index 0000000..8e46c85
--- /dev/null
+++ b/octosentryTests/octosentryTests.swift
@@ -0,0 +1,19 @@
+//
+//  octosentryTests.swift
+//  octosentryTests
+//
+//  Created by cmc on 2026-07-17.
+//
+
+import Testing
+@testable import octosentry
+
+struct octosentryTests {
+
+    @Test func example() async throws {
+        // Write your test here and use APIs like `#expect(...)` to check expected conditions.
+        // Swift Testing Documentation
+        // https://developer.apple.com/documentation/testing
+    }
+
+}
diff --git a/octosentryUITests/octosentryUITests.swift b/octosentryUITests/octosentryUITests.swift
new file mode 100644
index 0000000..576538e
--- /dev/null
+++ b/octosentryUITests/octosentryUITests.swift
@@ -0,0 +1,43 @@
+//
+//  octosentryUITests.swift
+//  octosentryUITests
+//
+//  Created by cmc on 2026-07-17.
+//
+
+import XCTest
+
+final class octosentryUITests: XCTestCase {
+
+    override func setUpWithError() throws {
+        // Put setup code here. This method is called before the invocation of each test method in the class.
+
+        // In UI tests it is usually best to stop immediately when a failure occurs.
+        continueAfterFailure = false
+
+        // In UI tests it’s important to set the initial state - such as interface orientation - required for your tests before they run. The setUp method is a good place to do this.
+    }
+
+    override func tearDownWithError() throws {
+        // Put teardown code here. This method is called after the invocation of each test method in the class.
+    }
+
+    @MainActor
+    func testExample() throws {
+        // UI tests must launch the application that they test.
+        let app = XCUIApplication()
+        app.launch()
+
+        // Use XCTAssert and related functions to verify your tests produce the correct results.
+        // XCUIAutomation Documentation
+        // https://developer.apple.com/documentation/xcuiautomation
+    }
+
+    @MainActor
+    func testLaunchPerformance() throws {
+        // This measures how long it takes to launch your application.
+        measure(metrics: [XCTApplicationLaunchMetric()]) {
+            XCUIApplication().launch()
+        }
+    }
+}
diff --git a/octosentryUITests/octosentryUITestsLaunchTests.swift b/octosentryUITests/octosentryUITestsLaunchTests.swift
new file mode 100644
index 0000000..7001f38
--- /dev/null
+++ b/octosentryUITests/octosentryUITestsLaunchTests.swift
@@ -0,0 +1,35 @@
+//
+//  octosentryUITestsLaunchTests.swift
+//  octosentryUITests
+//
+//  Created by cmc on 2026-07-17.
+//
+
+import XCTest
+
+final class octosentryUITestsLaunchTests: XCTestCase {
+
+    override class var runsForEachTargetApplicationUIConfiguration: Bool {
+        true
+    }
+
+    override func setUpWithError() throws {
+        continueAfterFailure = false
+    }
+
+    @MainActor
+    func testLaunch() throws {
+        let app = XCUIApplication()
+        app.launch()
+
+        // Insert steps here to perform after app launch but before taking a screenshot,
+        // such as logging into a test account or navigating somewhere in the app
+        // XCUIAutomation Documentation
+        // https://developer.apple.com/documentation/xcuiautomation
+
+        let attachment = XCTAttachment(screenshot: app.screenshot())
+        attachment.name = "Launch Screen"
+        attachment.lifetime = .keepAlways
+        add(attachment)
+    }
+}