We were two authors/developers, and one left to develop a commercial motion graphics software. I am the only left, but I have a day job (computer vision researcher), and no more resources to give to the community.
If you want to do something, join the community, register on github and post issues there, write docs (those are just text files), offer bounties on feature requests (even small ones) to attract developers…
There is a strong group that develops pyplugs or effects using shadertoy, see https://github.com/NatronVFX/natron-plugins
Your best entry point to the community is @Blackvfx2018