{
  description = "slopefit";

  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
    flake-utils.url = "github:numtide/flake-utils";
  };

  outputs =
    {
      self,
      nixpkgs,
      flake-utils,
    }:
    flake-utils.lib.eachDefaultSystem (
      system:
      let
        pkgs = nixpkgs.legacyPackages.${system};
        pkg = import ./build.nix;
      in
      rec {
        packages = rec {
          slopefit = pkgs.callPackage pkg { };
          slopefit-with-tests = pkgs.callPackage pkg { };
          default = slopefit;
        };
        devShells = {
          default = pkgs.mkShell {
            inputsFrom = [
              packages.slopefit-with-tests
            ];

            buildInputs = [ pkgs.python3Packages.pip ];

            shellHook = ''
              echo "Development shell for slopefit"
            '';
          };
        };
      }
    );
}