Yes, it's electron unfortunately. So you're basically downloading chrome with a SSH node module & some interface code. I'm not a huge fan of it either, and even run slack in browser to save on memory on desktops. But the main features I have been after we're checked with termius. One of them being the yearly subscription of $10, but if it helps keep the devs active on it, I'm okay with paying for software, especially if it makes my job easier. Which usually includes lots of time in numerous SSH sessions.