Hi again.
We really appreciate contribution from community, as we got from T3 Framework and other projects.
For T4, right now, we need to make the core stable first since there will be lots of changes and updates in codebase, in addition, there are multiple functions are in progress of development.
So its better for developer to contribute once its core is stable, we will try to push up the development to release stable version as soon as possible.
Will keep you updated.
Thanks and best regards.