Check Readme.md for more.
Install instructions:
0.5. make sure java is installed
place the config (config/gamestate_intergration_CSGOTimer.cfg) in your csgo config directory(typicly %path to steam%\steamapps\common\Counter-Strike Global Offensive\csgo\cfg.
Run the JAR this should only show a java icon in the task bar at the min.
Put CSGO in windowed mode (note that this will lightly not work if you use CSGO at non native res (back bars might be fine))
get in game and plant the bomb :)