Use Q4OS Development Pack as a starting point for custom applications development, please read developer manuals in the Documents section first. We offer the complete support for independent developers via e-mail firstname.lastname@example.org or public developer forum.
Please report bugs at our bug report tracker. You are welcome to submit a proposals for Q4OS improvements or new features as well.
If you would like to help us, contribute or anyhow participate in the development of Q4OS ecosystem, contact us at email@example.com.