Making a counter

[pcs800]

How would I go about making a counter which just logs time spent on a project?
So when the plugin is loaded into the daw, the user click a button to start it, and it counts until the project is closed, and then resumes when the project is loaded again?

This is as close as I came to finding something in the forum.
https://forum.hise.audio/topic/8700/beat-time-counter/4?_=1767207098757

[Dan Korneff]

I'm using Activity Watch to track time on an app.
ActivityWatch - Open-source time tracker https://share.google/Edb7SuzvFWQrHf5ZR

Maybe you can borrow some code