Mastodon user Seth Michael Larson has shared a quick method for creating pre-populated event hashtag templates for Mastodon toots.
Larson, a Mastodon fan, wanted a simple way to post about in-the-moment content during the PyCon US 2025 conference, without having to type out all the hashtags each time.
The solution Larson found was to use pre-filled share URLs that include the desired hashtags in percent-encoded text.
To make the process work on iOS devices, Larson saved the URL to a GitHub Gist and added the Gist webpage to the home screen.