slock: slock ( Simple X display locker. )
slock:
slock: This is the simplest X screen locker we are aware of. It is stable
slock: and quite a lot of people in our community are using it every day 
slock: when they are out with friends or fetching some food from the local
slock: pub.
slock:
slock:
slock:
slock: https://tools.suckless.org/slock/ 
slock: