I have a Seeed mini-router with a Raspberry Pi 4 compute module, 4GB RAM, 32GB eMMC flash. *This is a more rare router which comes with OpenWRT pre-installed*,

I have a Seeed mini-router with a Raspberry Pi 4 compute module, 4GB RAM, 32GB eMMC flash. *This is a more rare router which comes with OpenWRT pre-installed*, for those who don't like the idea of reflashing a router from stock firmware, to alternative firmware (and super-frustrating minor hardware revisions *not stated on the product packaging* can trip you up, potentially-bricking the router). Be warned that the wifi onboard the CM4 is weak (like the usable range is only 9ish feet, or 3ish metres), but the CM4 does have a tiny connector to attach a better antenna (not included). There are also 2 USB3 ports, so some sort of better Linux-compatible wifi dongle could be attached there. OpenWRT makes it easy to graphically add such a new network device into a quickly-usable network interface. The linux kernel version at present is 5.4, if you were wondering how recent the driver support would be. And remember, that's aarch64 drivers, not amd64.