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- Getting Started — The ROMs you supply, first-run setup, choosing a machine, loading something.
- Loading Software — Snapshots, tapes, disks and .nex, and what each one does to the machine.
- SD Cards — The two slots, read-only mode, Scan / Fix, and what can go wrong.
- Keyboard and Controllers — The Spectrum keyboard, joystick modes, gamepads and the mouse.
- Preferences — The nine tabs, and the settings saved without asking.
- Save States — What a state captures, what it does not, and version compatibility.
- Config File — Every key in config.json, and its default.
- Steam Deck and SteamOS — Library entries and Steam Input.
- Controller Overlay — Bizmuth from a gamepad, and --player.
- ESP and Serial — WiFi for the guest.
- Command-line Options — Every option, grouped by purpose.
- Headless Runs and Testing — Captures, scripted input, regression checks and FantASM tests.