• http://www.nongnu.org/xbindkeys/xbindkeys.html
• xcape exists, however it only allows for binding of keys to other keys, while xbindkeys allows for the binding of shell commands to specific keys. Currently there is no alternative for this functionality in Solus.
• GPL
• http://www.nongnu.org/xbindkeys/xbindkeys-1.8.6.tar.gz

Other notes:

• May be considered DOA (last release 4 years ago), however provides unique functionality and is packaged by Debian, Fedora and openSUSE.