[mrkurt]

It's gross to advertise your own company, but the weather's bad soooo ...

We have an open source tool called wormhole that works similarly. You can run it yourself, or use it on fly.io (including the free tier): https://github.com/superfly/wormhole

[deforciant]

Another option is webrelay ingress controller for k8s, also tunnel based :) https://webhookrelay.com/v1/examples/relay-ingress.html