Here is a useful list of shortcuts to pages related to the OpenPetra project:

https://forum.openpetra.org: forum for discussions and community support

https://docs.openpetra.org: manuals for OpenPetra

http://code.openpetra.org: Github source code repository

https://github.com/openpetra/openpetra/issues: Bugtracker at Github

https://wiki.openpetra.org: Developers’ Documentation and more

https://dbdoc.openpetra.org: The HTML documentation of the database structure with all the tables

https://codedoc.openpetra.org: The HTML documentation of the class structure with all the methods and properties

https://weblate.openpetra.org: Online Tool for translating OpenPetra into various languages

https://demo.openpetra.org: A demo for testing and evaluation, coming with a Windows client and a client in the web browser (experimental). The database is reset every night!

https://demodbs.openpetra.org: Some databases with generated data for demonstration, evaluation and testing

https://ci.openpetra.org/: the OpenPetra project Continous Integration builds at Appveyor

http://sf.openpetra.org/: the OpenPetra project page at Sourceforge

https://www.openhub.net/p/openpetraorg: Open Hub (formerly known as Ohloh) Project statistics for OpenPetra