Core code contributions
Vvveb uses github to host the code repository, to make code contributions you can make a pull request at github.com/givanz/Vvveb
Themes
Vvveb themes are regular html templates with some custom attributes added for dynamic components and they are very easy to develop unlike regular themes that require template languages or php.
For theme development please check the themes documentation.
You can submit your theme to the themes marketplace.
Plugins
To extend Vvveb functionality and features you can develop and submit your plugins to the plugins marketplace.
For plugin development please check the plugins documentation.