nix-starter-configs/shell.nix

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# Shell for bootstrapping flake-enabled nix and home-manager, from any nix version
{ pkgs ? let
system = builtins.currentSystem or "Unknown system";
nixpkgs =
if builtins.pathExists ./flake.lock
then
# If we have a lock, fetch locked nixpkgs
let lock = builtins.fromJSON (builtins.readFile ./flake.lock).nodes.nixpkgs.locked;
in
fetchTarball {
url = "https://github.com/nixos/nixpkgs/archive/${lock.rev}.tar.gz";
sha256 = lock.narHash;
}
else
# If not (probably because not flake-enabled), fetch nixos-unstable impurely
fetchTarball {
url = "https://github.com/nixos/nixpkgs/archive/nixos-unstable.tar.gz";
};
in
import nixpkgs { inherit system; }
, ...
}:
pkgs.mkShell {
nativeBuildInputs = with pkgs; [ nix home-manager git ];
}