You can even have all nixpkgs on a different distro through the nix package manager
LeLachs
That is very cool. Thanks for sharing. If you need some additional repos (like OP), you can probably add them through some commands in the "pre_init_hooks" option.
Mist, reingeschaut
It should be possible. Although probably very complicated. Have a look at https://distrobox.it/. It allows you to tightly integrate containers into your desktop, including accelerated graphics, some devices, your homedir, etc. It can even automatically install desktop shortcuts. (You can disable the integrations of course) Even tho it uses Podman instead of docker, AFAIK it should be 1:1 compatible with docker for your usecase.
Plants vs Zombies
Why pirate Resolve? The non studio version is free (but not OSS)
You kinda can? You can register your USB as a storage and use steams offline mode. You just need internet once to log in
Which "ads company"? No offense, just curious.
Here is a great defcon talk that might give you some ideas: https://www.youtube.com/watch?v=5CzURm7OpAA
Why not? Electromagnetic interference is a mother.
(translated from German) I can't write
When did the US invade all of russia? (genuinely curious)