All you have to do is look in the Switch Tutorial section:Sorry guys,i ask questions and get ignored.
https://gbatemp.net/threads/quick-tuto-how-to-boot-linux-on-your-switch.501918/
https://gbatemp.net/threads/how-to-install-android-8-1-lineageos-to-your-nintendo-switch.544568/
https://gbatemp.net/threads/partition-based-emummc-and-l4t-ubuntu-on-the-same-sd-card.543956/
https://gbatemp.net/threads/running...-core-switch-dont-expect-much-from-it.573657/