The La Frite by Libre Computer is an Amlogic S805X SoC similar to the Odroid, but with the form factor of a Rasberry Pi, running ARMv8-A architecture.
The specs are here: https://libre.computer/products/boards/aml-s805x-ac/
It supports u-boot, and buildroot even has a target for it: https://github.com/home-assistant/operating-system/tree/dev/buildroot/board/librecomputer/lafrite
I got it because it has integrated WiFi and seemed like a great combination of the Rpi-Zero-W and the Rpi3 (at the time), for the cost of a Zero.
Would it be possible to get a defconfig for this board, or should I scrap it and get an Rpi4 instead?