I want to create a electron js app, that is listing events from the user’s desktop and process those data. What available approaches to achieve that task? I want to listen for example port 3000, and collect those events and process.

I have created a time tracker application using react and electron.js.
After first installation of the desktop application, when I start timer for the first time an error pops-up and when I click okay it’ll carry on. It’ll cause no issues whatsoever but it’s bugging me. Can’t tell why it’s popping up. [Only for the first time]. I can’t even figure out where is this error coming to so I could provide some code snippet.