Re-export linux-asahi/m1n1 for CI

flake.lock

@@ -23,15 +23,16 @@
         ]
       },
       "locked": {
-        "lastModified": 1747514947,
-        "narHash": "sha256-irRDuerdVu495nBgkhCUjCi2mRpPig0F6cKMoIOfScA=",
+        "lastModified": 1748263294,
+        "narHash": "sha256-YOjjNfkzrDMpndTen2tYn4DBB2BbrvRJMQf/45wDZU0=",
         "owner": "tpwrules",
         "repo": "nixos-apple-silicon",
-        "rev": "db46177593e24f68e802455875850cdeaf49eb1c",
+        "rev": "f198b8d27fdc1eee591c88a789e58497daaf3c1e",
         "type": "github"
       },
       "original": {
         "owner": "tpwrules",
+        "ref": "pull/303/head",
         "repo": "nixos-apple-silicon",
         "type": "github"
       }
@@ -53,11 +54,11 @@
     },
     "flake-compat": {
       "locked": {
-        "lastModified": 1688025799,
-        "narHash": "sha256-ktpB4dRtnksm9F5WawoIkEneh1nrEvuxb5lJFt1iOyw=",
+        "lastModified": 1746162366,
+        "narHash": "sha256-5SSSZ/oQkwfcAz/o/6TlejlVGqeK08wyREBQ5qFFPhM=",
         "owner": "nix-community",
         "repo": "flake-compat",
-        "rev": "8bf105319d44f6b9f0d764efa4fdef9f1cc9ba1c",
+        "rev": "0f158086a2ecdbb138cd0429410e44994f1b7e4b",
         "type": "github"
       },
       "original": {
@@ -91,11 +92,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1748227609,
-        "narHash": "sha256-SaSdslyo6UGDpPUlmrPA4dWOEuxCy2ihRN9K6BnqYsA=",
+        "lastModified": 1748455938,
+        "narHash": "sha256-mQ/iNzPra2WtDQ+x2r5IadcWNr0m3uHvLMzJkXKAG/8=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "d23d20f55d49d8818ac1f1b2783671e8a6725022",
+        "rev": "02077149e2921014511dac2729ae6dadb4ec50e2",
         "type": "github"
       },
       "original": {
@@ -141,11 +142,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1748190013,
-        "narHash": "sha256-R5HJFflOfsP5FBtk+zE8FpL8uqE7n62jqOsADvVshhE=",
+        "lastModified": 1748370509,
+        "narHash": "sha256-QlL8slIgc16W5UaI3w7xHQEP+Qmv/6vSNTpoZrrSlbk=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "62b852f6c6742134ade1abdd2a21685fd617a291",
+        "rev": "4faa5f5321320e49a78ae7848582f684d64783e9",
         "type": "github"
       },
       "original": {

flake.nix

@@ -4,8 +4,10 @@
   inputs = {
     # Specify the source of Home Manager and Nixpkgs.
     nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+    # Temporarily use https://github.com/tpwrules/nixos-apple-silicon/pull/303
+    # as stable mesa now supports the Asahi ABI fully.
     apple-silicon-support = {
-      url = "github:tpwrules/nixos-apple-silicon";
+      url = "github:tpwrules/nixos-apple-silicon?ref=pull/303/head";
       inputs.nixpkgs.follows = "nixpkgs";
     };
     # Allows for easy enumeration of available Darwin and Linux systems.
@@ -54,13 +56,14 @@
       });
 
       # Next, we provide Linux-specific home-manager configurations,
+      # assist Garnix in building the linux-asahi kernel for aarch64-linux,
       # and expose our default packages to the world.
       packages =
         let
-          ##########################
-          # Linux-specific options #
-          ##########################
-          linuxConfiguration = linuxSystems (system: {
+          ###############################
+          # Linux-specific home manager #
+          ###############################
+          linuxHomeManager = linuxSystems (system: {
             homeConfigurations = {
               # We currently assume that Linux devices only require
               # dotfiles and utilize the username `spotlight`.
@@ -83,10 +86,19 @@
           });
 
           # For all platforms, export our packages for CI to build.
-          exportedPackages = allSystems (system: import ./pkgs/default.nix {
+          overlayPackages = allSystems (system: import ./pkgs/default.nix {
             pkgs = nixpkgs.legacyPackages.${system};
           });
 
+          # On aarch64-linux, additionally re-export Asahi-related packages.
+          # This allows it to be cached via Garnix if necessary, saving local build time.
+          asahiPackages = {
+            aarch64-linux = {
+              linux-asahi-kernel = inputs.apple-silicon-support.packages.aarch64-linux.linux-asahi.kernel;
+              m1n1 = inputs.apple-silicon-support.packages.aarch64-linux.m1n1;
+            };
+          };
+
           # We must use recursiveUpdate in order to go deeper beyond one level.
           # For example, `linuxConfiguration` provides `packages.x86_64-linux.homeConfiguration`
           # and `exportedPackages` provides `packages.x86_64-linux.<package name>`.
@@ -95,8 +107,9 @@
           # and either packages or the home-manager configuration end up being replaced.
           # This is not ideal :(
           recursiveUpdate = nixpkgs.lib.recursiveUpdate;
+          exportedPackages = recursiveUpdate overlayPackages asahiPackages;
         in
-        recursiveUpdate linuxConfiguration exportedPackages;
+        recursiveUpdate linuxHomeManager exportedPackages;
 
       # We provide a NixOS module for easy usage within other system flakes.
       # (Again, we assume a default name of `spotlight` under Linux.)

hosts/linux/spotlights-macbook-air/configuration.nix

@@ -23,13 +23,8 @@
   time.timeZone = lib.mkForce null;
 
   # Asahi Linux support
-  hardware.asahi = {
-    peripheralFirmwareDirectory = /boot/asahi;
-    # GPU enablement
-    useExperimentalGPUDriver = true;
-    experimentalGPUInstallMode = "replace";
-    withRust = true;
-  };
+  # Options such as `withRust` are no longer necessary.
+  hardware.asahi.peripheralFirmwareDirectory = /boot/asahi;
 
   networking = {
     hostName = "spotlights-macbook-air";