agreed. probably not for production. but wow it has been great educationally to see all the parts and pieces from basic linux packages. I wouldn't have believed this could all be done in minimal bash. Thankfully btrfs does a lot of the heavy lifting (and also helps visualize copy-on-write, dir layouts, etc.)

highly recommend the delight playing with it on a VM! :)

probably you should. or docker. or some other container engine.

but you can still have fun learning with this minimal tool.