Self-hosted ngrok alternative.
brew install cjdenio/tap/underpassOr, download a release from the releases page.
There's a hosted instance running at https://underpass.clb.li.
underpass -p <port> -s <optional subdomain>(more docs coming soon, possibly)
go run ./cmd/server --host <host here>underpass -p <port> --host <host here> -s <optional subdomain>- No WebSocket support