zlacker

FOSS alternative is to throw up a $5 VPS on some trusted host, then use Wireguard (FOSS FTW) to do basically exactly the same, but cheaper, without giving away control and with better privacy.

There is bunch of software that makes this easier than trivial too, one example: https://github.com/g1ibby/auto-vpn/

>>diggan+(OP)
Or you can use headscale (BSD) with the Tailscale client (BSD), which is still FOSS but also very very easy to use.