Ethical Hacking games
$ python -c "print ('%08x.' * 16 + '%s')" > ./input-txt.txt
Details: https://stackoverflow.com/questions/17341122/link-and-execute-external-javascript-file-hosted-on-github
Example: https://cdn.jsdelivr.net/gh/vvasylkovskyi/ethical-hacking@314e6a691b8e427e4633f9632cc04456778a452b/script.js
Toptal: https://www.toptal.com/developers/postbin/