@klaucode - check out this repo: GitHub - Meteor-Community-Packages/meteor-desktop: Build a Meteor's desktop client with hot code push.
I’d suggest you maybe start of with the ToDo app first before you try to switch your app to Electron. But building a Windows/macOS/Linux app from the same code base is really an advantage.
The alternative to that is Ionic which uses the latest Electron version (AFAIK) whereas the Meteor Desktop package is very far behind (using Electron 11.5) where Electron has just released version 21 (see Electron's blog | Electron):
Electron 21.0.0 has been released! It includes upgrades to Chromium 106 , V8 10.6 , and Node.js 16.16.0