I've searched for information but haven't found any. Can Metarouter run on Hap AC 3? The hardware seems compatible. If yes, what's the installation process? The wiki lacks details. Appreciate your assistance.

Hi,

don´t think Metarouter is a good idea today. Latest info I could find:
https://wiki.mikrotik.com/wiki/Manual:Metarouter

It doesn´t even mention ARM devices, and MT went rather for containers.
I tried Metarouter on ROS6 on MIPSBE (HEXpoe), but it was never stable.

A somewhat relevant recent thread:
viewtopic.php?p=1016042&hilit=metarouter#p1016042