{
  description = "devs & ops environment for nix'ing with triton";

  inputs.devshell.url = "github:numtide/devshell";
  inputs.flake-utils.url = "github:numtide/flake-utils";
  inputs.nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";

  outputs = { self, flake-utils, devshell, nixpkgs }:
    flake-utils.lib.eachDefaultSystem (system:
      let
        pkgs = import nixpkgs {
          inherit system;
        };
      in
      {
        # Internal utility package with shell function and env vars helper.
        # These get source'd in devshell.bash.extra when starting tritonshell
        packages = {
          triton-utils = import ./pkgs/triton-utils.nix { inherit pkgs; };
          triton-docker-env =
            let
              # CUSTOMIZE:
              # variables used to set triton env vars in tritonshell
              # adjust to suit your Triton Data Center setup
              # take a look at ./pkgs/triton-docker-env-shell.nix to see how these get used
              cnsBaseDomain = "greenbaum.zone";
              dataCenters = [ "cgn-1" "lev-1" ];
              mantaDomain = "eu-central.manta.greenbaum.cloud";
              tritonApiDomain = "api.greenbaum.cloud";
            in
            import ./pkgs/triton-docker-env.nix {
              inherit pkgs cnsBaseDomain dataCenters mantaDomain tritonApiDomain;
            };
        };

        devShells.default =
          let
            pkgs = import nixpkgs {
              inherit system;

              overlays = [
                devshell.overlay
                (import ./overlay.nix)
              ];
            };

            # HINT: add your extra devshell pkgs here, use any packages you want
            # available in your devshell's PATH
            # Use https://search.nixos.org/packages to find available packages
            # in the unstable channel
            # These get appended to devshell.packages in ./tritonshell.nix
            extraDevshellPkgs = with pkgs; [
              #hello
            ];

          in
          import ./tritonshell.nix { inherit extraDevshellPkgs devshell pkgs self system; };
      });
}