I just made one of these! I learned Swift to build it. Fast, focused, uses as little memory and CPU as I can manage for a (lightweight) video editor.
It's been fun to work a bit closer to the metal than I've been with JS for the last few years. Made about 50 sales so far. Can't imagine it'll make me rich but maaan it makes my video editing way faster :D
Your app seams great from what you have on its webpage. But the webpage made my AMD Threadripper based tower spin up the fan like hell broke loose. Closing the tab in Firefox immediately stopped the noise.
It's been fun to work a bit closer to the metal than I've been with JS for the last few years. Made about 50 sales so far. Can't imagine it'll make me rich but maaan it makes my video editing way faster :D