Contributions

Update
You have different sections with nails topics which help you to improve VestaCP.
For the installation it's pretty straight forward aka one line code on any these linux (Debian, Ubuntu, RedHat, CentOS) and it's on the main page.
Library
VestaCP is low demand on resource, the community is proactive and the design is pretty intuitive. I'm not a fan of Softaculous, but VestaCP integrate it which means for me, VestaCP a growing and serious product such as Commercial Panel and will become just more and more popular.
Library
Suricata git repository maintained by the OISF