so the first step is: which architecture are you? if you are x64 then go to a different tutorial, this is for arm64

next you need to turn on Linux (go to settings and search Linux)

then you need to get the RASPBERRY PI VERSION of pico8 (because raspberry pi is arm)

now put the pico-8 file into the Linux files

then go to the file with dir to see which file to go to and then cd (your file) repeat untill you see the file in dir "pico8_64"

then run this ./pico8_64

if you get a "permission denied" message run this chmod u=rwx,g=r,o=r pico8_64

then run the ./pico8_64 again

I wasted my time on this, don't waste yours, follow this tutorial

also if you want to use the .p8 files, they are a in a hidden file, so turn those on in file settings
(the 3 dots at the top of files)

this took me forever because its a Chromebook, and now I resent chromebooks