I will say however, that as things evolve, more and more applications are web-based. This is great for compatibility since anyone can use the application. Porting it to javascript hence would be good. There are now new open source custom card makers like this one that will import a database and output card images: https://github.com/LimitlessSocks/TDOANE-CardMaker
Note however, that in YGO Omega, card pics are created automatically from the arts, so you don’t need card image generators. You just need the arts and you put them in a custom folder with the same id as the card.