If you want, I can suggest a minimal feature set for a first portable build or sketch a simple UI layout and keyboard shortcuts.
A widely trusted, open-source tool that is completely portable. It offers millisecond-level precision and doesn't require installation. automatic mouse and keyboard background click portable
The most powerful option. Using the ControlClick and ControlSend commands, it can interact with minimized or inactive windows without moving your mouse. If you want, I can suggest a minimal
Excellent. Specifically designed for "Background mode," allowing you to work in other windows. Portability: Offers a "portable" lightweight, fast, and safe operation. If you want
Strong background mode, allowing you to run tasks without interrupting current work.
: Capturing real-time movements and keystrokes to replay them with millisecond precision. Anti-Detection