Binaries CI: add aarch64-linux binaries

https://github.blog/changelog/2025-01-16-linux-arm64-hosted-runners-now-available-for-free-in-public-repositories-public-preview/

Author: amesgen

.github/workflows/binaries.yml

@@ -14,6 +14,9 @@ jobs:
           - os: ubuntu-latest
             system: x86_64-linux
             attr: native
+          - os: ubuntu-24.04-arm
+            system: aarch64-linux
+            attr: native
           - os: macOS-latest
             system: aarch64-darwin
             attr: native
@@ -84,6 +87,8 @@ jobs:
         include:
           - os: ubuntu-latest
             system: x86_64-linux
+          - os: ubuntu-24.04-arm
+            system: aarch64-linux
           - os: macOS-latest
             system: aarch64-darwin
           - os: macOS-latest

flake.nix

@@ -77,7 +77,14 @@
             };
             ormoluExe = hsPkgs: hsPkgs.hsPkgs.ormolu.components.exes.ormolu;
             linuxWindows = {
-              native = ormoluExe hsPkgs.projectCross.musl64;
+              native =
+                let
+                  musl =
+                    if system == "aarch64-linux"
+                    then "aarch64-multiplatform-musl"
+                    else "musl64";
+                in
+                ormoluExe hsPkgs.projectCross.${musl};
               windows = ormoluExe hsPkgs.projectCross.mingwW64;
             };
             macOS.native = pkgs.runCommand "ormolu-macOS"
@@ -98,7 +105,7 @@
             '';
           in
           lib.recurseIntoAttrs
-            (lib.optionalAttrs (system == "x86_64-linux") linuxWindows
+            (lib.optionalAttrs pkgs.hostPlatform.isLinux linuxWindows
               // lib.optionalAttrs pkgs.hostPlatform.isDarwin macOS);
 
         pre-commit-check = inputs.pre-commit-hooks.lib.${system}.run {