Unpack the jot.zip in the desired directory DEST.
Edit jot-config.bat so that JOT_ROOT is now equal to DEST\jot.
For MS Windows users: Edit the properties of the jot-cmd file and set its target to DEST\jot\batch\jot-config.bat.
Execute jot-cmd shortcut to launch Jot command line.
Start out with the basic tutorial.