Trilium/apps/server/src/routes/api/system_info.ts

import { execSync } from "child_process";
import { isMac, isWindows } from "../../services/utils";
import { arch, cpus } from "os";

function systemChecks() {
    return {
        isCpuArchMismatch: isCpuArchMismatch()
    }
}

/**
 * Detects if the application is running under emulation on Apple Silicon or Windows on ARM.
 * This happens when an x64 version of the app is run on an M1/M2/M3 Mac or on a Windows Snapdragon chip.
 * @returns true if running on x86 emulation on ARM, false otherwise.
 */
export const isCpuArchMismatch = () => {
    if (isMac) {
        try {
            // Use child_process to check sysctl.proc_translated
            // This is the proper way to detect Rosetta 2 translation
            const result = execSync("sysctl -n sysctl.proc_translated 2>/dev/null", {
                encoding: "utf8",
                timeout: 1000
            }).trim();

            // 1 means the process is being translated by Rosetta 2
            // 0 means native execution
            // If the sysctl doesn't exist (on Intel Macs), this will return empty/error
            return result === "1";
        } catch (error) {
            // If sysctl fails or doesn't exist (Intel Macs), not running under Rosetta 2
            return false;
        }
    } else if (isWindows && arch() === "x64") {
        return cpus().some(cpu =>
            cpu.model.includes('Microsoft SQ') ||
            cpu.model.includes('Snapdragon'));
    } else {
        return false;
    }
};

export default {
    systemChecks
};