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Nix is problematic due to its memory requirements. The nix package manager alone requires over 2gb just to run.

While Nix can use a lot of memory while evaluating larger systems (or searching all of nixpkgs by evaluating everything), it is usable on systems with 2GB RAM.

Nix 2.0 had a bug which caused excessive memory use, but it's been fixed in 2.1: https://github.com/NixOS/nix/commit/2825e05d21ecabc8b8524836... https://github.com/NixOS/nix/commit/48662d151bdf4a38670897be...

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