Merge remote-tracking branch 'origin/main' into nixpkgs.lib

extras/partitions.nix

@@ -83,13 +83,12 @@ let
 
   # Nix does not recognize that a flake like "${./dev}", which is a content
   # addressed store path is a pure input, so we have to fetch and wire it
-  # manually with get-flake.
-  # TODO: update this
-  get-flake = import (builtins.fetchTree {
-    type = "github";
-    owner = "ursi";
-    repo = "get-flake";
-    rev = "a6c57417d1b857b8be53aba4095869a0f438c502";
+  # manually with flake-compat.
+  get-flake = src: (flake-compat { inherit src; system = throw "operating flake-compat in pure mode; system not allowed to be used"; }).outputs;
+  # TODO: update
+  flake-compat = import (builtins.fetchTarball {
+    url = "https://github.com/edolstra/flake-compat/archive/9ed2ac151eada2306ca8c418ebd97807bb08f6ac.tar.gz";
+    sha256 = "sha256:063slk1np1g1dkh21a82x655kpja7p4pc74rb3lqankyrbbpy4hx";
   });
 
 in

modules/flake.nix

@@ -10,7 +10,23 @@ in
     flake = mkOption {
       type = types.submoduleWith {
         modules = [
-          { freeformType = types.lazyAttrsOf types.raw; }
+          {
+            freeformType =
+              types.lazyAttrsOf
+                (types.unique
+                  {
+                    message = ''
+                      No option has been declared for this flake output attribute, so its definitions can't be merged automatically.
+                      Possible solutions:
+                        - Load a module that defines this flake output attribute
+                          Many modules are listed at https://flake.parts
+                        - Declare an option for this flake output attribute
+                        - Make sure the output attribute is spelled correctly
+                        - Define the value only once, with a single definition in a single module
+                    '';
+                  }
+                  types.raw);
+          }
         ];
       };
       description = ''