chore(lib): prepare for refactoring into clanLib

lib/default.nix

@@ -1,25 +1,38 @@
 {
   lib,
-  clan-core,
+  self,
   nixpkgs,
   ...
 }:
-let
+# Produces the
+# 'clanLib' attribute set
+# Wrapped with fix, so we can depend on other clanLib functions without passing the whole flake
+lib.fix (clanLib: {
+  # TODO:
+  # SSome bad lib functions that depend on something in 'self'.
+  # We should reduce the dependency on 'self' aka the 'flake' object
+  # This makes it easier to test
+  # most of the time passing the whole flake is unnecessary
   evalClan = import ./eval-clan-modules {
-    inherit clan-core lib;
+    inherit lib;
+    clan-core = self;
     pkgs = nixpkgs.legacyPackages.x86_64-linux;
   };
-in
+  buildClan = import ./build-clan {
-{
+    inherit lib nixpkgs;
-  inherit (evalClan) evalClanModules evalClanModulesWithRoles;
+    clan-core = self;
-  buildClan = import ./build-clan { inherit lib nixpkgs clan-core; };
+  };
+  inventory = import ./inventory {
+    inherit lib;
+    clan-core = self;
+  };
+  modules = import ./frontmatter {
+    inherit lib self;
+  };
+  # ------------------------------------
+  # Lib functions that don't depend on 'self'
   facts = import ./facts.nix { inherit lib; };
-  inventory = import ./inventory { inherit lib clan-core; };
   values = import ./values { inherit lib; };
   jsonschema = import ./jsonschema { inherit lib; };
-  modules = import ./frontmatter {
-    inherit lib;
-    self = clan-core;
-  };
   select = import ./select.nix;
-}
+})