From f2b6128f10d9166d4ddf2ec64c08f4fc73f418ab Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pawe=C5=82=20Pacana?= <pawel.pacana@chattermill.io>
Date: Tue, 28 Jul 2026 16:47:00 +0200
Subject: [PATCH] Ensure Rosetta on cm

* Install Rosetta during activation when it is missing so amd64
  containers have the macOS translation support they need.

* Gate the activation step to Apple Silicon hosts because Rosetta is not
  available on Intel Macs.
---
 hosts/cm.nix        | 1 +
 modules/rosetta.nix | 9 +++++++++
 2 files changed, 10 insertions(+)
 create mode 100644 modules/rosetta.nix

diff --git a/hosts/cm.nix b/hosts/cm.nix
index bacd9c9..7b2d1f2 100644
--- a/hosts/cm.nix
+++ b/hosts/cm.nix
@@ -8,6 +8,7 @@
       ../modules/sudo.nix
       ../modules/homebrew.nix
       ../modules/account.nix
+      ../modules/rosetta.nix
     ];
   };
 
diff --git a/modules/rosetta.nix b/modules/rosetta.nix
new file mode 100644
index 0000000..ad3efd2
--- /dev/null
+++ b/modules/rosetta.nix
@@ -0,0 +1,9 @@
+{ lib, pkgs, ... }:
+
+{
+  system.activationScripts.postActivation.text = lib.mkIf pkgs.stdenv.hostPlatform.isAarch64 ''
+    if ! /usr/sbin/pkgutil --pkg-info com.apple.pkg.RosettaUpdateAuto >/dev/null 2>&1; then
+      /usr/sbin/softwareupdate --install-rosetta --agree-to-license
+    fi
+  '';
+}
-- 
2.51.2