Installation fails due to a dependency called duplex
❯ go install github.com/progrium/localtunnel
no required module provides package github.com/progrium/localtunnel; to add it:
go get github.com/progrium/localtunnel
❯ go get github.com/progrium/localtunnel
go: github.com/progrium/localtunnel imports
github.com/progrium/duplex/poc2/duplex: cannot find module providing package github.com/progrium/duplex/poc2/duplex