I agree, that does not seem like a smart undertaking. I was thinking more of a dashboard within the existing software, or above it.

For my use case I wanted bespoke software to work with Pixel art, but obviously I would not try to build Photoshop or Aseprite from scratch. I needed only specific functionality and I was able to build that in a way fitting my workflow better than any existing software could.

I was able to build it with Claude Code and Codex. Maybe the implementation is sloppy, I did not care to check. The program works, and it's like a side project to my side project. It would not have been possible in the past, I would have needed to work with what Aseprite offers out of the box.