You're right that Kickstarter can sometimes be a bit tricky for finding specific categories. For desktop software like the one you described, which focuses on
organizing and backing up files with a unique approach, the Technology category is definitely a fitting choice. It covers a broad range of tech-related projects, including software. If you’re looking for more specific exposure, you might also consider adding tags or keywords related to "Software" or "Productivity Tools" when you set up your Kickstarter project. Good luck with your project—I’m sure it’ll catch the eye of many who are looking for innovative solutions!