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Musl on NixOS

I've been hopping around Gentoo and Void the past few days with musl on both, and I'll be going back to NixOS in a bit due to not having enough time to set up either of them. I've realised how little RAM either systems use on musl, though, and I was wondering if there is any chance of replacing glibc with musl on NixOS?

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  • Nixpkgs includes packages compiled for musl under the pkgsMusl prefix. For example, pkgs.pkgsMusl.hello. IIUC these only exist on a Linux system.

    Maybe you can use those packages for everything by setting pkgsMusl as your package set. For example if you are using Home Manager with a flake config you normally have a line like,

    let pkgs = nixpkgs.legacyPackages.${system};

    Maybe you could change that to

    let pkgs = nixpkgs.legacyPackages.${system}.pkgsMusl;