!! Leap15
*openSUSE-Leap
*LN-leap-upgrade
*LB-btrfs

! REPO
 Leap15_5
 zypper addrepo https://repo.skype.com/rpm/stable/ SKYPE
 zypper addrepo https://download.opensuse.org/repositories/graphics/15.5/graphics.repo 
 zypper addrepo https://download.opensuse.org/repositories/science/15.5/science.repo
 zypper addrepo https://download.opensuse.org/repositories/electronics/15.5/electronics.repo 
 zypper addrepo https://download.opensuse.org/repositories/Publishing/openSUSE_15.5/Publishing.repo 
 zypper addrepo --refresh http://http.download.nvidia.com/opensuse/leap/15.5/ NVIDIA
 zypper addrepo https://download.videolan.org/SuSE/15.5/SuSE.repo
 zypper addrepo --refresh https://download.opensuse.org/repositories/system:/snappy/openSUSE_Leap_15.5/system:snappy.repo snappy 

!upgrade
*https://en.opensuse.org/SDB:System_upgrade_to_Leap_15.5

! kernel 
*https://www.belbel.or.jp/opensuse-manuals_ja/cha-tuning-taskscheduler.html

!LIRC
*https://www.lirc.org/