expose packages output, add it to global nixpkgs

Signed-off-by: ahuston-0 <aliceghuston@gmail.com>

flake.nix

@@ -151,6 +151,7 @@
       );
       inherit (lib.rad-dev.systems) genSystems getImages;
       inherit (self) outputs; # for hydra
+
     in
     rec {
       inherit lib; # for allowing use of custom functions in nix repl
@@ -158,13 +159,14 @@
       hydraJobs = import ./hydra/jobs.nix { inherit inputs outputs systems; };
       formatter = forEachSystem (system: nixpkgs.legacyPackages.${system}.nixfmt-rfc-style);
 
-      nixosConfigurations = genSystems inputs src (src + "/systems");
+      nixosConfigurations = genSystems inputs outputs src (src + "/systems");
       images = {
         install-iso = getImages nixosConfigurations "install-iso";
         iso = getImages nixosConfigurations "iso";
         qcow = getImages nixosConfigurations "qcow";
       };
 
+      packages = import ./packages { pkgs = nixpkgs.legacyPackages.x86_64-linux; };
       checks = import ./checks.nix { inherit inputs forEachSystem formatter; };
       devShells = import ./shell.nix { inherit inputs forEachSystem checks; };
     };

lib/systems.nix

@@ -149,6 +149,7 @@ rec {
       configPath,
       hostname,
       inputs,
+      outputs ? { },
       src,
       users,
       home ? true,
@@ -160,7 +161,12 @@ rec {
     lib.nixosSystem {
       inherit system;
       specialArgs = {
-        inherit inputs server system;
+        inherit
+          inputs
+          outputs
+          server
+          system
+          ;
       };
       modules =
         [
@@ -194,7 +200,7 @@ rec {
   # type:
   # genSystems :: AttrSet -> Path -> Path -> AttrSet
   genSystems =
-    inputs: src: path:
+    inputs: outputs: src: path:
     builtins.listToAttrs (
       map (
         name:
@@ -205,10 +211,15 @@ rec {
           inherit name;
           value = constructSystem (
             {
-              inherit inputs src configPath;
+              inherit
+                inputs
+                src
+                configPath
+                outputs
+                ;
               hostname = name;
             }
-            // import configPath { inherit inputs; }
+            // import configPath { inherit inputs outputs; }
           );
         }
       ) (lib.rad-dev.lsdir path)

modules/nix.nix

@@ -1,4 +1,9 @@
-{ lib, pkgs, ... }:
+{
+  lib,
+  pkgs,
+  outputs,
+  ...
+}:
 {
   nix = {
     package = pkgs.nixVersions.latest;
@@ -50,4 +55,11 @@
       dates = [ "01:00" ];
     };
   };
+
+  nixpkgs.overlays = [
+    (_: _: {
+      # bring all packages into a namespace called rad-pkgs
+      rad-pkgs = lib.genAttrs (lib.attrNames outputs.packages) (pkg: outputs.packages.${pkg});
+    })
+  ];
 }