Why we built it
We register domains, run DNS and rent servers, and every one of those jobs eventually involves the question "can you see this yet?". A temporary public address is the shortest path to an answer, and there was no reason for it to cost anything.
Osir Tunnel is a small tool, deliberately. It does one thing, it asks for one sign-in and nothing else, and it gets out of the way when you press Ctrl+C.
https://osir.com/en/blog/introducing-osir-tunnel
Source: r/osir · by /u/OsirCom