The env gop run shebang line is not posix-compliant; posix only requires support for a single argument in the shebang and this one has two arguments (gop run).
That is an odd comment to put using HTTP onto a process listening to port 443 so it can be stored by way of sending certain bytes to a different process listening to a port.
There is env -S that supports multiple arguments. This was always an extension available in BSD I think, and it is available now in recent versions of GNU's env.
GNU Coreutils env supports the -S option as of v8.30. Ubuntu 18.04 LTS appears to be on v8.28, but 19.04 supports it. (https://stackoverflow.com/q/4303128)
(Also, I didn't think the shebang was specified by POSIX at all? Am I wrong?)
Can we please consider certain modest improvements?