It's a mix of Electron and native code (Swift). Focusing on perfecting the macOS version for the time being. Will release both for Linux and Windows very soon.
I'm actually surprised by that, I've been using the beta on my Linux machines and never noticed anything that would suggest it was electron. No performance issues, weird UI, etc. I actually prefer it to the MacOS/Windows native clients.
The intention is that they'll be identical, because they'll be written using Avalonia.
And I hate Electron. I hate it so much. I hate the web pages that I'm being told are "apps". I hate the lack of keyboard shortcut support. I hate the bad performance. I hate how it's not stick-to-your-finger fast. I hate owning unbelievably powerful computers and mobile devices and not taking advantage of their power and capabilities, and just reducing them to surfaces for fake "apps".
Btw, any reason not going cross-platform (Win/Linux along with Mac)? Judging by screenshots it doesn't look like a native Cocoa app, neither download size corresponds to Electron - what framework did you use for the UI?
reply