Protect your shareware apps with the AquaticPrime framework:

"Developing software for the Mac? We love you. Really. And most of us want to pay you for your efforts. So when you're slaving away on that great shareware app, and the bucks aren't rolling in because some tool posted up a serial online, what can you do? I know a lot of folks resort to third-party services like Kagi. But why not try the AquaticPrime framework? It's free, open-source, and uses RSA encryption. There are even Carbon, Cocoa, and PHP versions available. Now get back to coding, safe in the knowledge you may finally be able to afford your own computer for programming."

(Via The Unofficial Apple Weblog (TUAW).)