# Build CiviCRM is an open-source application which can be poked, prodded, twisted, and hacked. It can be customized (with minimal code skills), extended (for add-ons and integrations), and collaboratively developed. <table> <tbody> <tr> <td><a href="requirements">Requirements</a></td> <td>Get the tools you need</td> </tr> <tr> <td><a href="build">Git Install</a></td> <td>Install the latest code from git</td> </tr> <tr> <td><a href="customize">Customize</a></td> <td>Change your site without coding</td> </tr> <tr> <td><a href="extend">Extend</a></td> <td>Create an add-on or integration</td> </tr> <tr> <td><a href="develop">Develop</a></td> <td>Create a feature or fix for CiviCRM</td> </tr> <tr> <td><a href="testing">Testing</a></td> <td>Make it good</td> </tr> <tr> <td><a href="reference">Reference</a></td> <td>Dig into the nitty-gritty</td> </tr> </tbody> </table> # Collaborate As an open-source project, CiviCRM is managed by an international community of developers and activists. If you have questions, issues, or want to make plans for new development, reach out online. <table> <tbody> <tr> <td><a href="https://civicrm.org/blog">Blog</a></td> <td>Read about the big developments</td> </tr> <tr> <td><a href="http://forum.civicrm.org/">Forum</a></td> <td>Converse in the public square</td> </tr> <tr> <td><a href="https://github.com/civicrm/civicrm-core/">Github</a></td> <td>Tap the firehose of core development</td> </tr> <tr> <td><a href="FIXME">Guidelines</a></td> <td>Check the rules of the road</td> </tr> <tr> <td><a href="https://irc.civicrm.org/">IRC</a></td> <td>Chat with other developers in real-time</td> </tr> <tr> <td><a href="http://issues.civicrm.org/">Issues</a></td> <td>Discover on-going and resolved issues</td> </tr> <tr> <td><a href="FIXME">Publish</a></td> <td>Share your extensions</td> </tr> <tr> <td><a href="FIXME">Sprints</a></td> <td>Get together IRL</td> </tr> <tr> <td><a href="http://civicrm.stackexchange.com/">StackExchange</a></td> <td>Ask questions. Find answers.</td> </tr> <tr> <td><a href="http://wiki.civicrm.org/confluence/display/CRM/CiviCRM+Wiki">Wiki</a></td> <td>Share drafts, notes, and specs</td> </tr> </tbody> </table>