@TimHare See @simon's demo! I cherrypicked the image example but he also shows datasette-extract pulling structure out of HTML copied from an event page.

@judell @simon I figured that something like _that_ existed, what I'm really thinking about is event publishing software that not only creates an agenda- or calendar-like web page but also creates a link to an .ics file for each event, plus maybe a subscribable .ics file for all the events - for example a band's tour or a bar's list of upcoming performers. People publishing events just don't seem to care about making it possible for others' computers to read them!