You could do some of this with an input method editor (IME). It's pretty much an authorized keylogger that can edit your inputs, and is mainly needed for Chines

You could do some of this with an input method editor (IME). It's pretty much an authorized keylogger that can edit your inputs, and is mainly needed for Chinese/Japanese typing. An IME that provides English autocomplete on the desktop (like phones) or shortcuts using an IME framework (like fcitx5) would be an interesting concept.