cccartiii/Timelapser ? reverse-engineered prompt

Build me a lightweight desktop app called Timelapser that lets artists record their screen while they draw, then automatically turn that recording into a smooth timelapse video when they stop.

I want it to be simple to use, with a clean interface where I can start recording, draw in my usual art program, stop when I am done, and export the timelapse without having to deal with huge video files. It should save storage compared to normal screen recording, and it should work well with most drawing software.

Please make it feel polished but easy, and include a few basic settings I can customize for recording and export. If you need to look up current docs or best practices online, go ahead.