{
  description = "Shell with python dev environment";

  inputs = {
    nixpkgs.url = "nixpkgs/nixos-25.05";
    nixpkgs_unstable.url = "nixpkgs/nixos-unstable";
  };

  outputs =
    { nixpkgs, nixpkgs_unstable, ... }:
    let
      system = "x86_64-linux";
      pkgs = nixpkgs.legacyPackages.${system};
      pkgs_ustbl = nixpkgs_unstable.legacyPackages.${system};
    in
    {
      devShells.${system}.default = nixpkgs.legacyPackages.${system}.mkShell {
        buildInputs = [
          pkgs.python311
        ];
      };
    };
}