I wanted to leave Intel/AMD or any amd64 arch after meltdown/spectre and so.
I found the ROCK64 (https://www.pine64.org/?page_id=7147) on the OpenBSD supported hardware and I have some fun last few days.

It's small, it's fast and is very power saving. Plus, it's 100% free instead of raspberry pi and proprietary firmwares.
OpenBSD runs fine on this, I installed it on the eMMC memory.

Anyway, just wanted to tell that if you're interested by these arm64 chips, go ahead. :)

Does anyone else use it?