{
  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
    systems.url = "github:nix-systems/default";
    fix-py.url = "github:GuillaumeDesforges/fix-python";
  };

  outputs =
    { nixpkgs, fix-py, ... }:
    let
      eachSystem =
        f:
        nixpkgs.lib.genAttrs nixpkgs.lib.systems.flakeExposed (system: f nixpkgs.legacyPackages.${system});
    in
    {
      devShells = eachSystem (pkgs: {
        default = pkgs.mkShell {
          buildInputs = [
            pkgs.cargo
            pkgs.rustc
            pkgs.stdenv.cc.cc.lib
            fix-py.packages.${pkgs.system}.default
          ];
        };
      });
    };
}