photo caption/alt text tips on Mastodon
When you add a photo to a post, you can click "Edit" in the top-right of the photo preview to add a full alt-text description of the photo for screen readers. You have 5000 characters for that, too. Mastodon mobile apps generally also include access to this function.
A Mastodon server friendly towards anti-fascists, members of the LGBTQ+ community, hackers, and the like.