I reworked the application and have relaunched it today. It is written in pure python and has a number of features that the previous version lacked.
Current features are txt2img, img2img, inpaint, outpaint, an image gallery, an editable huggingface model db, sprite mode (for easy pixel sprite creation - the whole reason I started the app in the first place) an infinite canvas for outpainting and more.
I have released it as a free application and would appreciate any feedback.
I recommend installing with the itch.io launcher as this will allow you to easily check for updates.