partially fix tests

brightness conversion fails for invalid values,

macros for wrapping attrs

flake.lock

@@ -2,11 +2,11 @@
   "nodes": {
     "nixpkgs": {
       "locked": {
-        "lastModified": 1749494155,
+        "lastModified": 1758791193,
-        "narHash": "sha256-FG4DEYBpROupu758beabUk9lhrblSf5hnv84v1TLqMc=",
+        "narHash": "sha256-F8WmEwFoHsnix7rt290R0rFXNJiMbClMZyIC/e+HYf0=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "88331c17ba434359491e8d5889cce872464052c2",
+        "rev": "25e53aa156d47bad5082ff7618f5feb1f5e02d01",
         "type": "github"
       },
       "original": {

flake.nix

@@ -6,7 +6,7 @@
   };
 
   outputs =
-    inputs@{
+    {
       self,
       nixpkgs,
     }:
@@ -24,15 +24,45 @@
           system:
           f rec {
             pkgs = nixpkgs.legacyPackages.${system};
+            selfPkgs = self.packages.${system};
             inherit system;
           }
         );
     in
-    rec {
-      devShells = forAllSystems (
-        { pkgs, system }:
     {
-          default = pkgs.mkShell rec {
+      packages = forAllSystems (
+        { pkgs, selfPkgs, ... }:
+        {
+          servicepoint-binding-uniffi = pkgs.rustPlatform.buildRustPackage {
+            pname = "servicepoint-binding-uniffi";
+            version = "0.13.1";
+
+            src = ./.;
+            cargoDeps = pkgs.rustPlatform.importCargoLock { lockFile = ./Cargo.lock; };
+
+            nativeBuildInputs = with pkgs; [
+              pkg-config
+            ];
+
+            buildInputs = with pkgs; [
+              xe
+              xz
+            ];
+
+            postInstall = ''
+              mkdir -p $out/lib/pkgconfig
+              sed "s:\$out:$out:g" ${./servicepoint-binding-uniffi.pc.in} | sed "s:\$version:$version:g" > $out/lib/pkgconfig/servicepoint-binding-uniffi.pc
+            '';
+          };
+          default = selfPkgs.servicepoint-binding-uniffi;
+        }
+      );
+
+      devShells = forAllSystems (
+        { pkgs, selfPkgs, ... }:
+        {
+          default = pkgs.mkShell {
+            inputsFrom = [ selfPkgs.default ];
             packages = with pkgs; [
               (pkgs.symlinkJoin {
                 name = "rust-toolchain";
@@ -46,15 +76,12 @@
                   cargo-tarpaulin
                 ];
               })
-              xe
-              xz
-              pkg-config
             ];
             RUST_SRC_PATH = "${pkgs.rust.packages.stable.rustPlatform.rustLibSrc}";
           };
         }
       );
 
-      formatter = forAllSystems ({ pkgs, ... }: pkgs.nixfmt-rfc-style);
+      formatter = forAllSystems ({ pkgs, ... }: pkgs.nixfmt-tree);
     };
 }

servicepoint-binding-uniffi.pc.in

@@ -0,0 +1,5 @@
+Name: servicepoint-binding-uniffi
+Description: UniFFI bindings for the servicepoint library
+Version: $version
+URL: https://git.berlin.ccc.de/servicepoint/servicepoint-binding-uniffi
+Libs: -L$out/lib -lservicepoint_binding_uniffi