@chiwaw Thank you for posting this. I know this thread is old but I wanted to say thank you, and also to say this is what I am trying to set up, essentially a retropie build that lets me use old 8-bit computers with the basic interpreters.
I have a ton of 1980s programming books from when my local public library got rid of them, and wanted to type in programs and save them. It's not well documented at retropie, recalbox, or other places as to how to launch these emulators into the computer's default BASIC interpreter. If you want to write BASIC programs, this is a must. I'm hoping this comment adds some phrases and words that would increase search result hits to this post. I've been trying to figure this out and every search I've tried has come up with squat until today when I put "BASIC interpreter" in quotes into google.