I might not be the only one not knowing what gluetun was so here’s the repo:

VPN client in a thin Docker container for multiple VPN providers, written in Go, and using OpenVPN or Wireguard, DNS over TLS, with a few proxy servers built-in.

https://github.com/qdm12/gluetun

is there a catch-all option?

I was confused to, but OP just talked about the boxes, not the thing itself

I’m using “testing” repos for this reason (testing is still stable, it’s the next stable)

It might be late still, I don’t know