Start Safari setup
Install a userscript manager
Install a trusted Safari userscript manager such as Userscripts from the App Store.
Open Userscripts on the App StoreInstall IDU+ in Safari with a userscript
Install IDU+ in Safari through a userscript manager, then refresh the IDU portal to enable the cleaner interface, themes, and layout tools.
Installation steps
Enable the Safari extension
Open Safari settings, go to Extensions, and enable the userscript manager.
Add the IDU+ script
Create a new script or import the official IDU+ userscript package from the project source.
Limit the script domain
Allow the script only on the IDU portal domain, such as s19.idu.edu.pl, unless the project guide says otherwise.
Reload IDU
Open the portal in Safari and refresh the page. The new interface should appear after Safari allows the script.