1. Download the latest release
2. Unzip the downloaded archive
3. Move the resulting folder wherever you want
4. The Time Tracker.exe in the resulting folder is what you need to execute, so you can create a shortcut

Open the program Time Tracker.exe. If the program is already opened, use Left Ctrl + F7 (by default) to show/hide the program.

When you start working on something, enter the key combination Left Shift + Right Shift (by default). You will see ⏸️ in the tray.

When you stop working, enter the same key combination. You will see ▶️ in the tray.

You can describe what you did today in the specific field at the bottom right.