anechunaev/notion-electron ? reverse-engineered prompt

Build me an unofficial Linux desktop app for Notion that feels native and polished, not just a bare web wrapper. I want one app where I can use regular Notion, Notion Calendar, and Notion Mail in dedicated tabs inside the same window. The tabs should work like a normal browser, with separate history, reordering, pinning, and the ability to drag a tab out to my browser.

Please make it work well on Linux, with proper native notifications, tray support, light and dark theme support, solid Google sign in, and decent startup speed. It should be easy to install for normal users, ideally with an AppImage and other common Linux package options if that is practical, plus desktop integration and updates where appropriate.

It would also be great if there were a few simple launch options, like starting hidden in the tray, turning off spellcheck, or disabling in app updates for sandboxed installs.

Look up current docs online if you need to, and make it feel ready to use out of the box.