fix(desktop): warn about Rosetta installs on Apple Silicon (#621)

* fix(desktop): warn about Rosetta installs on Apple Silicon

* docs: note workspace build sync before type fixes

packages/desktop/src/system/arm64-translation.ts

@@ -0,0 +1,44 @@
+import { execFileSync } from "node:child_process";
+import { app } from "electron";
+
+const SYSCTL_TRANSLATED_KEY = "sysctl.proc_translated";
+
+let cachedRunningUnderARM64Translation: boolean | null = null;
+
+export function detectRunningUnderARM64Translation(input: {
+  platform: NodeJS.Platform;
+  electronReportedTranslation?: boolean;
+  execFileSyncImpl?: typeof execFileSync;
+}): boolean {
+  if (input.platform !== "darwin") {
+    return false;
+  }
+
+  if (input.electronReportedTranslation === true) {
+    return true;
+  }
+
+  const execImpl = input.execFileSyncImpl ?? execFileSync;
+
+  try {
+    const output = execImpl("sysctl", ["-in", SYSCTL_TRANSLATED_KEY], {
+      encoding: "utf-8",
+      timeout: 1000,
+    });
+    return output.trim() === "1";
+  } catch {
+    return false;
+  }
+}
+
+export function isRunningUnderARM64Translation(): boolean {
+  if (cachedRunningUnderARM64Translation !== null) {
+    return cachedRunningUnderARM64Translation;
+  }
+
+  cachedRunningUnderARM64Translation = detectRunningUnderARM64Translation({
+    platform: process.platform,
+    electronReportedTranslation: app.runningUnderARM64Translation,
+  });
+  return cachedRunningUnderARM64Translation;
+}