Ratel build on macOS

Hi, I need to build and install ratel UI on macOS. As per the instruction at ratel/INSTRUCTIONS.md at main · hypermodeinc/ratel · GitHub, docker is the preferred way but Docker usage is not allowed.
Can somebody provide some reference to build it ?

Thanks

There are lot of warnings related to build ( PFA )
ratel_warnings.txt (143.5 KB)

After build, I get this error:

$ ./build/ratel

panic: Error parsing “index.html” contents

goroutine 1 [running]:

github.com/dgraph-io/ratel/server.prepareIndexContent()

/Users/myuser/go/ratel/server/server.go:110 +0x2bc

github.com/dgraph-io/ratel/server.Run()

/Users/myuser/go/ratel/server/server.go:42 +0x24

main.main()

/Users/myuser/go/ratel/main.go:11 +0x1c