The keyboard can be paired with multiple devices.
The keyboard is designed to be as close to a regular staggered key layout as possible. Since it’s narrower than a standard keyboard, symbols typically to the right of the keyboard share space with the right-side letters and are accessible using the Raise modifier.
Dedicated emoji keys (achieved by unicode modifier key sequence macros) are available under many letters using the Lower modifier. This is experimental and the mapping is likely to evolve over time (I’d like to find room for 🥹, 🤯, and 👍 at the very least).
You can trigger a macro to type in the current firmware version and build number using Lower + Raise + A.