Closed source software, freeware made by some russian dude. In 2024 i would really VET this before installing.
Because it’s closed source or because they’re Russian? Lots of closed source Swift projects in the App Store and elsewhere.
Firstly im very cautious of any "single-dev" built side project, and when its closed source im even more aware of the dangers installing. And with russia in 2024 i cant trust any software produced over there. So, combine all three (close-source, single dev and russia) and you have a something really suspicious.