@Tony very minimal. On my server cluster at home it boots over the network, and runs entirely in ram on a bunch of ewaste. Justwerks for a lot of stuff because it's basically the container is of choice for dockerbros et. al. which is also due to small size and minimal resource usage.

It falls flat for desktop programs because there is less developer effort behind making stuff that relies on glibc work nicely. BUT a lot of stuff even there also works if you're not using developer tools like I am. For reading email, browsing the web, and using libre office, it justwerks again.