At work I have a MBP M2 Max and at home I have an Air M2 and both have been fine with Elm & VSCode. As for BEAM stuff I’ve done only “hello world” on these 2 machines and it’s been fine, can’t speak to anything production like though.
I remember there being some issues with the M1 chip originally, but can’t remember the details of exactly what it was, except that some things wouldn’t run on it. Obviously those issues got resolved by the respective devs eventually. I just don’t want to get bitten by something similar, and not be able to continue with my project on it - it’s my retirement plan and going along nicely, but my current MBP is 9-10 yrs old and needs renewing now
I don’t know the differences between the chips, I’m guessing if everything runs fine on an M1/M2 it should be Ok on the M4, but reluctant to spend the money on a guess…
I’ve just now asked Apple Support and I’m supposed to be getting an email from their techs within 24 hrs, so hopefully it’ll be good news. I’ll post the response in case anyone else is interested/curious.