>From <https://nim-lang.org/docs/nims.html>:
> On Unix, you can also use the shebang #!/usr/bin/env nim, **as long as your > filename ends with .nims** Missing an `e` is correct. However it only works on files prefixed with `.nims`, otherwise it gives "Error: invalid command: ...". Also I've heard that two or more arguments in shebang might not be accepted by the system or shell, so I usually use `#!/usr/bin/nim --hints:off` with extension name `.nims`.
