--snip--
No vouch or idea whether legit or not, but there is one result on GitHub:
https://github.com/Yanmailde/Phrutis_MiniKeys2No source code either, just binaries; so proceed with extreme caution. Maybe it's possible to contact the repo's owner to clarify.
After reading one of the FAQ and knowing the owner delete original repository, you could wasting your time.
If I find the private key can I take all the coins for myself?
No, you will find the encrypted key.
Only the organizers can decrypt this key and pay you a 50%.
I'd recommend people to use different tool such as
https://github.com/Coding-Enthusiast/FinderOuter to brute force mini private key.