A super cool project, but it's so easy to self-host a Raspberry Pi at home now with a public IP - even behind NAT and firewalls.
I'm the creator of inlets (self-hosted tunnels - L4/L7)
But Argo Tunnels from Cloudflare, and reverse SSH (for those with too much time on their hands) also work.
For more on a teeny K3s cluster: https://blog.alexellis.io/state-of-netbooting-raspberry-pi-i...