

If I, a humble computer hobbyist can figure out Nix, why don’t more users do so, and why is Nix so niche?
My guess as to why this isn’t a more central feature of Linux distros is that this is not something most users need. If you need to reinstall the OS because you broke it, then a full system backup is probably more convenient, even if it’s less than optimal to back up packages which you could download. If you need to reinstall the OS because you want a clean slate when upgrading to a new version, then your package list for the old version could cause a lot of conflicts as maintainers regularly remove and add new packages.
I have backed up my zsh, vim, tmux, etc. configs and written a few shell scripts which install them and download vim plugins etc. If I ever need to reinstall the OS I would use these. However, in the last 20 years since I ditched Windows I have reinstalled Linux exactly two times: Once because I was an idiot and didn’t have a proper backup when I accidentally formatted the wrong HDD, and once when I switched from Xubuntu to Fedora in which case a package list wouldn’t have been usable.
Products targeted towards businesses have always been unreasonably more expensive than those targeted towards consumers. It sucks for us AI hobbyists that Nvidia are stingy with VRAM on consumer cards, but I don’t find it surprising.
Personally I only have a single RTX 3090, but I know a lot of people online who are stacking multiple consumer cards to run AI. Buying used 3090s and putting them in a mining rig is probably still the best value for money if you need a large amount of VRAM.
How much VRAM do you actually need btw?