flake.nix

{
  description = ''
    A collection of Nix packages related to the Polkadot ecosystem.
  '';

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
    flake-utils.url = "github:numtide/flake-utils";
    fenix = {
      url = "github:nix-community/fenix";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    zombienet = {
      url = "github:paritytech/zombienet";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  outputs =
    {
      nixpkgs,
      flake-utils,
      fenix,
      zombienet,
      ...
    }:
    flake-utils.lib.eachDefaultSystem (
      system:
      let
        pkgs = import nixpkgs {
          inherit system;
          overlays = [
            fenix.overlays.default
            zombienet.overlays.default
          ];
        };
      in
      {
        packages = import ./pkgs { inherit pkgs; };
        devShells.default = import ./shell.nix { inherit pkgs; };
      }
    )
    // {
      overlays.default =
        final: prev:
        import ./overlay.nix final (
          prev.appendOverlays [
            fenix.overlays.default
            zombienet.overlays.default
          ]
        );
    };
}