A browser can't launch the emulator itself. This generates a config and a launch script that start dosbox‑automation with a known token, mount your game folder as C: without tripping the mount policy, and pin CPU cycles in both modes. Stop works over the API; restart = re‑run the script.

Mount policy: directory mounts are only allowed inside the config file's parent directory or under mount_allowed_bases (primary config only, max 5 entries). The generated conf assumes it sits next to the game folder; otherwise add the base line shown in the conf comment to your primary config.