flake.nix

{

  nixConfig = {
    extra-substituters = "https://horizon.cachix.org";
    extra-trusted-public-keys = "horizon.cachix.org-1:MeEEDRhRZTgv/FFGCv3479/dmJDfJ82G6kfUDxMSAw0=";
  };

  inputs = {
    flake-parts.url = "github:hercules-ci/flake-parts";
    horizon-develop-flake.url = "git+https://gitlab.horizon-haskell.net/nix/horizon-develop-flake";
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
  };

  outputs =
    inputs@
    { self
    , flake-parts
    , nixpkgs
    , ...
    }:
    flake-parts.lib.mkFlake { inherit inputs; }
      {
        systems = [
          "aarch64-darwin"
          "x86_64-darwin"
          "x86_64-linux"
        ];
        imports = [
          inputs.horizon-develop-flake.flakeModule
        ];
      };
}