https://github.com/sshuttle/sshuttle
... which allows you to turn any system you have an ssh login on into a VPN endpoint.
https://github.com/apenwarr/sshuttle
... and I had not made that connection before ...
https://github.com/sshuttle/sshuttle
... which allows you to turn any system you have an ssh login on into a VPN endpoint.