“We successfully competed against piracy and drove it to near-extinction, but now that we’re enshittified we can’t compete with piracy while continuing to make the obscene amounts of money that we want to make”

Nix only stores each version of a package once, environments work by setting environment variables and such to control which packages are visible

You don’t need to abandon your distro’s package manager to use Nix, so you can adopt it as much or as little as you like.