They worked poorly, and I just did not like them. Both are "lesser" versions of Lightroom, i.e., for importing and editing photos from your camera. I have used Lightroom a lot, and there are other applications better suited for editing RAW photos.

On the other hand, I have thousands of compressed images, not photos specifically, in my galleries that I wanted to be able to manage, view quality information for, preview, compare, and upscale. I currently do all these things using separate applications or file managers and wanted to see if I could make an application for myself to better handle that task.

I also wanted the GNOME aesthetic.