It's under MIT: https://github.com/oleg-koval/counter-interview.dev/blob/master/LICENSE.txt https://github.com/oleg-koval/counter-interview.dev/blob/mas... But

It's under MIT: https://github.com/oleg-koval/counter-interview.dev/blob/master/LICENSE.txt https://github.com/oleg-koval/counter-interview.dev/blob/mas... But yes, this should me more explicitly mentioned if they are advertising it as "open-source".