@starrwulfe Here you go. Let me know if you need something different, wrote this while having dinner, might have missed something.
I have two different types of posts that need Alt Text when posting: regular posts (with one or multiple photos), and sticker spotter posts.
Photos for sticker spotter are uploaded using a simple Shortcut, that asks for Alt Text when uploading. Before that I'll select the photo on Camera.app, and call another Shortcut: Generate Alt Text with OpenAI Vision, by @jarrod. This gets me the OpenAI created Alt Text on the clipboard. I'll paste it into Drafts, check if it's good, or edit if it needs editing. When it's ready, tap the icon for the upload Shortcut, pick the image, paste the alt text, and wait. That's it. Image gets posted, with the correct category, and Alt Text.
Photo posts are handled a bit differently. Mimi takes care of everything: I'll select the images, upload the all in one go, use the Generate Alt Text available on the beta, and export the whole thing to Drafts. I'll edit if needed, add the text, title, whatever, and just tap the button to send the post over here to M.b.
That's it. It does sound a bit more complicated than it actually is. Cool thing: alt text gets crossposted to Mastodon/Bluesky (thanks, @manton).