Current choices for scriptlets

Hello folks,

I seem to remember some discussion from a while back about snapcraft exposing a richer range of scriptlets. In my case, I’m particularly interested in being able to invoke a command after build, but before install (with both build and install stage operating normally).

The current documentation still refers to only prepare, build, and install scriptlets, with the latter two apparently replacing the regular build and install stages.

Can anyone advise what the current status is and what is expected to arrive in the near future?

Thanks & best wishes,

-- Joe