Want to get started hacking on the code of pluck? This is the place to start!

• Theming guide - a complete guide on how to create and share your own pluck themes
• Functions - list of built in functions
• Constants - list of built in constants

• Developing a module using hooks - learn how to create a module using hooks
• Hooks - list of available hooks

• Get started contributing code - want to contribute, but don't know how? read this guide!
• Coding guideline - a must read for everyone who wants to write code for pluck
• Translation status - take a look at the current status of the available languages

Also take a look at Launchpad, where you can file new bugs. All feature specs for upcoming versions and the development status are listed there too.