If you can, look into Ubiquiti. Their Unifi package is pretty comprehensive, and self-hostable.

If not, get an RPi with two Ethernet interfaces. Run raspbian, and learn IPTables/netfilter with masquerade. Put the WiFi in AP mode. Yes, it’ll suck but at least it’s not their router.

Save up a little bit and upgrade to a NUC with 2x Ethernet or some older HTPC with two Ethernet interfaces, it doesn’t need to be much. If it can run VMs, maybe you could run even run pfSense or DD-wrt on it. Get a managed switch that understands VLANs. Look into upgrading your WiFi to Ubiquiti Unfi APs with a local controller in a VM.

This is the way…

I like it because it stays out of my way, for the most part. I’ve been a modder sinve the Cyanogen days, and the windows.phones before that. I like lineage because it’s just a stock android experience with decent permissions management and support for phones I like to buy.

Gettng GPay and bank apps working can be a bit of a To Do, but there’s a lot of support over at XDA for that when you run into weirdness. 5 stars, will flash again

Updoot from LineageOS land!