Please remember that ProjectSend is open source, free software. It is made with love during the hard-to-find free time of mainly one developer.
If you want to collaborate, there are a few ways to do it:
With as little as $2 per month you can help the project stay active and updated.
Join the project by forking the development branch in github and submit your merge requests to help the code base grow!
If you want to translate ProjectSend in your language or work on an existing translation, please join the project on Transifex