diff --git a/examples/devos/flake.nix b/examples/devos/flake.nix
index 02db321b3..4c5e8fb35 100644
--- a/examples/devos/flake.nix
+++ b/examples/devos/flake.nix
@@ -73,7 +73,13 @@
           };
           nixpkgs-darwin-stable = {
             imports = [ (digga.lib.importOverlays ./overlays) ];
-            overlays = [ ];
+            overlays = [
+              # TODO: restructure overlays directory for per-channel overrides
+              # `importOverlays` will import everything under the path given
+              (channels: final: prev: {
+                inherit (channels.latest) mas;
+              } // prev.lib.optionalAttrs true { })
+            ];
           };
           latest = { };
         };
diff --git a/examples/devos/hosts/darwin/Mac.nix b/examples/devos/hosts/darwin/Mac.nix
index a44314ecc..80fb0794a 100644
--- a/examples/devos/hosts/darwin/Mac.nix
+++ b/examples/devos/hosts/darwin/Mac.nix
@@ -3,4 +3,8 @@
 {
   imports = with suites;
     base;
+
+  # The `mas` package is included here as a test for platform-specific package
+  # support in Digga. Feel free to remove it in your config.
+  environment.systemPackages = with pkgs; [mas];
 }
diff --git a/flake.lock b/flake.lock
index 510763bab..e95737995 100644
--- a/flake.lock
+++ b/flake.lock
@@ -130,15 +130,16 @@
         "flake-utils": "flake-utils_2"
       },
       "locked": {
-        "lastModified": 1657226504,
-        "narHash": "sha256-GIYNjuq4mJlFgqKsZ+YrgzWm0IpA4axA3MCrdKYj7gs=",
+        "lastModified": 1654029967,
+        "narHash": "sha256-my3GQ3mQIw/1f6GPV1IhUZrcYQSWh0YJAMPNBjhXJDw=",
         "owner": "gytis-ivaskevicius",
         "repo": "flake-utils-plus",
-        "rev": "2bf0f91643c2e5ae38c1b26893ac2927ac9bd82a",
+        "rev": "6271cf3842ff9c8a9af9e3508c547f86bc77d199",
         "type": "github"
       },
       "original": {
         "owner": "gytis-ivaskevicius",
+        "ref": "refs/pull/120/head",
         "repo": "flake-utils-plus",
         "type": "github"
       }
diff --git a/flake.nix b/flake.nix
index b2b686d45..79b11d42a 100644
--- a/flake.nix
+++ b/flake.nix
@@ -28,7 +28,7 @@
       devshell.url = "github:numtide/devshell";
       devshell.inputs.nixpkgs.follows = "nixpkgs";
 
-      flake-utils-plus.url = "github:gytis-ivaskevicius/flake-utils-plus";
+      flake-utils-plus.url = "github:gytis-ivaskevicius/flake-utils-plus/?ref=refs/pull/120/head";
 
       flake-compat = {
         url = "github:edolstra/flake-compat";
diff --git a/src/mkFlake/fup-adapter.nix b/src/mkFlake/fup-adapter.nix
index 19f76eb8b..cf57e3299 100644
--- a/src/mkFlake/fup-adapter.nix
+++ b/src/mkFlake/fup-adapter.nix
@@ -41,7 +41,12 @@ let
     })
   ];
 
-  unifyOverlays = channels: map (o: if builtins.isFunction (o null null) then o channels else o);
+  unifyOverlays = channels:
+    let
+      getChannel = inputs."${channelName}".legacyPackages.x86_64-linux;
+      channelName = builtins.elemAt (builtins.attrNames channels) 0;
+    in
+    map (o: if builtins.isFunction (o getChannel getChannel) then o channels else o);
 
   stripChannel = channel: removeAttrs channel [
     # arguments in our channels api that shouldn't be passed to fup