internal/web/templates/404.html

 1{{define "width"}}bounded{{end}}
 2{{define "title"}}not found · {{.Site}}{{end}}
 3{{define "content"}}
 4<div class="notfound">
 5  <p class="bigcode">404</p>
 6  <h1>Page not found</h1>
 7  <p class="desc">nothing lives at this address — the path may be wrong,
 8  or the repository may be private.</p>
 9  <p><a href="/">← back to {{.Site}}</a></p>
10</div>
11{{end}}