I just read the Friendica Wiki for how to add Alt-Texts

Between the [img], add a description about what's in the image so people with screen-reader or anyone can't see your image for whatever reason knows what that image is!

#AltTexts matter!

I'm assuming if I used #Friendica, the way to add #AltTexts is go to Photos and edit the caption, right?

Still trying to get my head around Friendica as someone who use *key and Mastodon as daily use