MCU Board - WaveShare RP2040-Zero

It includes a powerful RP2040 with a lot of flash memory (2MB), so you can enable many QMK features and layers without worrying about the firmware size.

Easier to solder (for the DIY soldering option)

There are very few components/pins to solder. You will need to solder diodes, hot swap sockets, and the castellated holes for the RP2040-Zero.

Choc spacing

Key switches are arranged tighter than the standard spacing.

Ergonomics

Slightly angled sides, with a bigger thumb key.

Enclosure

There is an elegant case modified from the original osprey keyboard. It includes a top case, switch plate and a bottom case.

Firmware

QMK and Vial are supported. For advanced users, you should be able to use other firmwares including ZMK, KMK (Python-based), PRK (Ruby-based), keyberon (Rust-based) and ZMK.