use: makeExtensible

lib/devos/default.nix

@@ -1,4 +1,4 @@
-{ lib }:
+{ lib, utils }:
 {
   # pkgImport :: Nixpkgs -> Overlays -> System -> Pkgs
   pkgImport = nixpkgs: overlays: system:
@@ -9,22 +9,22 @@
 
   profileMap = map (profile: profile.default);
 
-  mkNodes = lib.callLibs ./mkNodes.nix;
+  mkNodes =  import ./mkNodes.nix { inherit lib; };
 
-  mkHosts = lib.callLibs ./mkHosts.nix;
+  mkHosts = import ./mkHosts.nix { inherit lib; };
 
-  mkSuites = lib.callLibs ./mkSuites.nix;
+  mkSuites = import ./mkSuites.nix { inherit lib; };
 
-  mkProfileAttrs = lib.callLibs ./mkProfileAttrs.nix;
+  mkProfileAttrs = import ./mkProfileAttrs.nix { inherit lib; };
 
-  mkPkgs = lib.callLibs ./mkPkgs.nix;
+  mkPkgs = import ./mkPkgs.nix { inherit lib utils; };
 
-  recImport = lib.callLibs ./recImport.nix;
+  recImport = import ./recImport.nix { inherit lib; };
 
-  devosSystem = lib.callLibs ./devosSystem.nix;
+  devosSystem = import ./devosSystem.nix { inherit lib; };
 
-  mkHomeConfigurations = lib.callLibs ./mkHomeConfigurations.nix;
+  mkHomeConfigurations = import ./mkHomeConfigurations.nix { inherit lib; };
 
-  mkPackages = lib.callLibs ./mkPackages.nix;
+  mkPackages = import ./mkPackages.nix { inherit lib; };
 }
 

lib/devos/devosSystem.nix

@@ -1,4 +1,6 @@
-{ lib, nixpkgs, userFlakeSelf, userFlakeInputs, ... }:
+{ lib }:
+
+{ userFlakeNixos, userFlakeSelf, userFlakeInputs }:
 
 { modules, ... } @ args:
 lib.nixosSystem (args // {
@@ -13,7 +15,7 @@ lib.nixosSystem (args // {
         (args // {
           modules = moduleList ++ [
 
-            "${nixpkgs}/${modpath}/installer/cd-dvd/installation-cd-minimal-new-kernel.nix"
+            "${userFlakeNixos}/${modpath}/installer/cd-dvd/installation-cd-minimal-new-kernel.nix"
 
             ({ config, suites, ... }: {
 

lib/devos/mkHomeConfigurations.nix

@@ -1,4 +1,6 @@
-{ lib, userFlakeSelf, ... }:
+{ lib }:
+
+{ userFlakeSelf }:
 
 with lib;
 let

lib/devos/mkHosts.nix

@@ -1,6 +1,6 @@
-{ lib, nixpkgs, userFlakeInputs, userFlakeSelf, ... }:
+{ lib  }:
 
-{ dir, extern, suites, overrides, multiPkgs, ... }:
+{ dir, extern, suites, overrides, multiPkgs, userFlakeNixOS, userFlakeInputs, userFlakeSelf }:
 let
   defaultSystem = "x86_64-linux";
 
@@ -36,7 +36,7 @@ let
       hardware.enableRedistributableFirmware = lib.mkDefault true;
 
       nix.nixPath = [
-        "nixpkgs=${nixpkgs}"
+        "nixpkgs=${userFlakeNixOS}"
         "nixos-config=${userFlakeSelf}/compat/nixos"
         "home-manager=${userFlakeInputs.home}"
       ];
@@ -45,7 +45,7 @@ let
 
       nix.registry = {
         devos.flake = userFlakeSelf;
-        nixos.flake = nixpkgs;
+        nixos.flake = userFlakeNixOS;
         override.flake = userFlakeInputs.override;
       };
 

lib/devos/mkNodes.nix

@@ -1,4 +1,4 @@
-{ lib, ... }:
+{ lib }:
 
 /**
   Synopsis: mkNodes _nixosConfigurations_

lib/devos/mkPackages.nix

@@ -1,4 +1,6 @@
-{ lib, userFlakeSelf, ... }:
+{ lib }:
+
+{ userFlakeSelf }:
 
 { pkgs }:
 let

lib/devos/mkPkgs.nix

@@ -1,6 +1,6 @@
-{ lib, nixpkgs, userFlakeSelf, utils, userFlakeInputs, ... }:
+{ lib, utils }:
 
-{ extern, overrides }:
+{ extern, overrides, userFlakeNixOS, userFlakeSelf, userFlakeInputs }:
 (utils.lib.eachDefaultSystem
   (system:
     let
@@ -20,6 +20,6 @@
       ++ extern.overlays
       ++ (lib.attrValues userFlakeSelf.overlays);
     in
-    { pkgs = lib.os.pkgImport nixpkgs overlays system; }
+    { pkgs = lib.os.pkgImport userFlakeNixOS overlays system; }
   )
 ).pkgs

lib/devos/mkProfileAttrs.nix

@@ -1,4 +1,4 @@
-{ lib, ... }:
+{ lib }:
 
 let mkProfileAttrs =
   /**

lib/devos/mkSuites.nix

@@ -1,4 +1,4 @@
-{ lib, ... }:
+{ lib }:
 
 { users, profiles, userProfiles, suites } @ args:
 let

lib/devos/recImport.nix

@@ -1,4 +1,4 @@
-{ lib, ... }:
+{ lib }:
 
 { dir, _import ? base: import "${dir}/${base}.nix" }:
 lib.mapFilterAttrs

lib/flake.nix

@@ -14,24 +14,19 @@
 
   outputs = inputs@{ self, nixpkgs, deploy, devshell, utils, ... }: let
 
-    inherit (nixpkgs) lib;
+    lib = nixpkgs.lib.makeExtensible (self:
-
-    # We work with a combined lib, internally ...
-    combinedLib = lib.extend (final: prev:
-      let callLibs = file: import file
-        ({
-          lib = final;
-          userFlakeNixos = {};
-          userFlakeSelf = {};
-          userFlakeInputs = {}; # TODO: Erm, theese must become proper arguments to mkFlake
-        } // inputs);
-      in
-      with final;
       let
+        callLibs = file: import file
+          ({
+            lib = self;
+            userFlakeNixos = {};
+            userFlakeSelf = {};
+            userFlakeInputs = {}; # TODO: Erm, theese must become proper arguments to mkFlake
+          } // inputs);
 
-        attrs = import ./attrs.nix { lib = prev; };
+        attrs = import ./attrs.nix { lib = nixpkgs.lib // self; };
-        lists = import ./lists.nix { lib = prev; };
+        lists = import ./lists.nix { lib = nixpkgs.lib // self; };
-        strings = import ./strings.nix { lib = prev; };
+        strings = import ./strings.nix { lib = nixpkgs.lib // self; };
       in
 
       utils.lib
@@ -39,9 +34,10 @@
       //
 
       {
-        inherit callLibs;
+        os = import ./devos {
-
+          lib = nixpkgs.lib // self;
-        os = import ./devos { lib = final; };
+          inherit utils;
+        };
 
         mkFlake = {
           __functor = callLibs ./mkFlake;
@@ -50,12 +46,17 @@
         };
 
         pkgs-lib = import ./pkgs-lib {
-          lib = final;
+          lib = nixpkgs.lib // self;
           inherit nixpkgs deploy devshell;
         };
 
-        inherit (attrs) mapFilterAttrs genAttrs' safeReadDir
+        inherit (attrs)
-          pathsToImportedAttrs concatAttrs filterPackages;
+          mapFilterAttrs
+          genAttrs'
+          safeReadDir
+          pathsToImportedAttrs
+          concatAttrs
+          filterPackages;
         inherit (lists) pathsIn;
         inherit (strings) rgxToString;
       }
@@ -65,10 +66,9 @@
 
   {
 
-    # ... but don't force that choice onto the user
     lib = utils.lib // {
-      mkFlake = combinedLib.mkFlake;
+      inherit (lib)
-      pkgs-lib = combinedLib.pkgs-lib;
+        mkFlake;
     };
 
   }
@@ -83,7 +83,7 @@
         checks = {
           tests = import ./tests {
             inherit (nixpkgs') pkgs;
-            lib = combinedLib;
+            lib = nixpkgs.lib // lib;
           };
         };
       }