This page (https://todo.sr.ht/~sircmpwn/todo.sr.ht) displays a
Configure link to logged-in but non-owner users; if you click it, the edit form is displayed. There is a small
you can't edit this message but the Save button is present and clickable (yes I clicked it, in the spirit of collecting data for this bug report). This results in a 403 Forbidden but the form should probably non be live in the first place.