sss is a shortcut/hotkey software written with just POSIX shell script, and very few other utilities, with a short dependency list of things that you likely already have installed, its therefore quite minimal.
Who said you should? I sure didn't, because I'm not sure you should. I mean, it's a hotkey daemon written in POSIX shell script.
Coreutils (you have these, unless you're cynical):
tr
rm
cat
sed
grep
pgrep
mkdir
touch
stdbuf
mkfifo
Other dependencies (you may have these already):
xinput
xmodmap
$ git clone https://github.com/KiruPoruno/sss; cd sss
$ install -m 755 -D sss /usr/bin/sss
Open the rc.example
file, and read the top comment in there, it
explains how the config system works, on top having example binds.