Congratulations on the launch! How does the remote -> local tunneling work? The docs you linked are a little unclear to me.
How does this differ from something like Localcan, which seems to offer the same features? https://www.localcan.com/
For what it's worth, I'll mention that I have an open-source application, Localias [0], that does the same local https development + mDNS support for HTTP/TCP/UDP traffic. Localias doesn't support traffic inspection or remote -> local tunneling, but it's open source, built on caddy, and works on mac/linux/wsl2. It's a statically built binary and you can share your configs with your whole dev team in your git repo.