Pax

Tried a few, settled on Pairdrop for myself.

Actual has been working fine for me. Supports all the family’s banks and credit cards I import manually.

I have ddns on Cloudflare. It works great, until your home IP changes. After that wireguard will happily hammer the old IP, till something breaks the tunnel and it reestablishes it to the new IP. Working as intended. My workaround was forcing the IP change over night while everyone was home.

Tailscale sorts all the issues I had.

It will resolve the IP from the domain when the tunnel goes up and will keep using that one. Working as intended.

Overlay networks solve that issue.

For me its been wireguard with split tunnel but that had a glaring issue with my home IP change (running 2 Pi-hole+unbound instances on separate network segments and hardware). Some time ago I switched to tailscale and added a Pi-hole on a VPS. Closed system, nothing exposed to the wide internet, works 99.99…% of the time, whole family protected against low hanging fruit attacks and adds.

Thing is - “mini” PCs old enough to have 3.5 slots are probably way too old to have decent CPUs.