Seems like the developer is back with a video update on the program's development.

Some points I understood:

• The developer made some rethinking of the whole project
• The node editor got a rewrite from C++ to C#, a higher level language, to make development easier (I think the filters themselves are in lower level language, it just affectst the node editor).
• With the rise of godot and video editors becoming 2D/3D pipelines, the developer based the rendering engine on godot.
• The developer wants to make the editor modular and easy to extend.
• The developer says that the following months will try to work on getting olive to a stable release:)

Link to video: https://www.youtube.com/watch?v=invMlMRPUrM