There was a thread on one of the tech communities about CS horror shows, and one of them was a guy telling a story about how Amazon had to completely redesign their smart home printer function to run through some monkeychain cloud pipeline because right before launch because they realized one of the libraries related to CUPS was AGPL, which is a blacklisted license at Amazon.

The kicker was that the library also offered a lifetime corporate license for $100.

Amazon redesigned their entire printing functionality stack to avoid paying $100 (or following AGPL lol).