Open Core and navigate to the Library page, then select a module/widget from the list.
Got to the Info page and click on Debug actions, then click Uninstall
Follow through the pop-up that appears and you're done.
Uninstallation
I've put a lot of work into JaxCore, so it's really sad to see you goπ!
If you're experiencing problems with JaxCore, you can search for related issues at FAQs, or create an issue on the Github repository / help thread on the Discord serverπ€!
Spoiler
Find Rainmeter in Apps & Features (Windows settings) and click uninstall