Sigh... are we really just going to re-invent plugins?

We do need a safe layer for non-engineers to customize apps.

All these clones of Photoshop and similar tools are mostly dead ends, they are experiments to see if you can do it, but there will be a consolidation around regularly maintained and powerful and complete apps that likely also offer support.

These experiments are dead-ends for the most part long-term. Fun play things, but they will not gain significantly user bases.