break out an agda.nix

home/modules/development/agda.nix

@@ -0,0 +1,61 @@
+{ config, lib, pkgs, ... }:
+
+let
+
+  nixpkgs-unstable = import <nixpkgs-unstable> {};
+
+  agda-categories = with nixpkgs-unstable.agdaPackages; mkDerivation rec {
+    pname = "agda-categories";
+    version = "2128fab";
+    src = pkgs.fetchFromGitHub {
+      owner = "agda";
+      repo = "agda-categories";
+      rev = version;
+      sha256 = "08mc20qaz9vp5rhi60rh8wvjkg5aby3bgwwdhfnxha1663qf1q24";
+    };
+
+    buildInputs = [ standard-library ];
+  };
+
+in
+
+{
+  imports = [
+    ../lib/cloneRepo.nix
+  ];
+
+  home.packages = with pkgs; [
+    (nixpkgs-unstable.agda.withPackages
+      (p: with p; [
+        p.standard-library
+
+      ]))
+  ];
+
+  grfn.impure.clonedRepos = {
+    agda-stdlib = {
+      github = "agda/agda-stdlib";
+      path = "code/agda-stdlib";
+    };
+
+    agda-categories = {
+      github = "agda/agda-categories";
+      path = "code/agda-categories";
+    };
+
+    categories-examples = {
+      github = "agda/categories-examples";
+      path = "code/categories-examples";
+    };
+  };
+
+  home.file.".agda/defaults".text = ''
+    standard-library
+  '';
+
+  home.file.".agda/libraries".text = ''
+    ${config.home.homeDirectory}/code/agda-stdlib/standard-library.agda-lib
+    ${config.home.homeDirectory}/code/agda-categories/agda-categories.agda-lib
+  '';
+
+}