Mini Apps

share extensions is on its face less intuitive name than cast actions given mini apps can use these for all sorts of actions

I still think it's a good name:
- follows an iOS UI pattern — the idea you're sharing some resource to an app and that app let you take some arbitrary action on it has precedent
- share extension makes it clear to the user they are accessed from the share menu
- usage is low to the point of not justifying its own button so moving into the share sheet is a nice simplification for feed UI simplification
- new users will naturally stumble upon once they add a mini app and share a cast instead of needing to click an unrecognizable icon
- cast actions with a dedicated button was also unintuitive and confusing for many users

@farcaster dev / dad / books, cooks, ski, code ~ there are many things of which a wise man might wish to be ignorant

I agree, this UX moment is a rare case in which the icon (little box with an arrow going out) communicates the scope better than the proper name or action ("Open share menu")