Updated as of Mar 28 2025
To install the Mainline Installer:
add the repository:
sudo add-apt-repository ppa:cappelikan/ppa
Update sources and install:
sudo apt update && sudo apt install mainline
Launch Mainline from App Menu or terminal, and select the kernel you wish to test.
To use the Liquorix kernel:
Add repository
sudo add-apt-repository ppa:damentz/liquorix
Update sources and install:
sudo apt update && sudo apt install linux-image-liquorix-amd64