FormAPI is a simple API for creating forms for Minecraft PE/BE clients.
How to install?
Well you can either download formapi from github and put it in your source code or use the DEvirion plugin.
You can edit poggit.yml where you can specify which virions you use:
- src: jojoe77777/FormAPI/libFormAPI
and then the .phars will have the virions injected in them.