This siddur is an Instruction manual for the Shabbat and Havdalah modules on the jOS (The Jewish Operating System). It is more than a book of prayers, it is rather a book of suggestions for how to bring more meaning and magic to everyday living. The manual contains a series of "apps." Each app is designed to perform a specific psychological, intellectual, physical, or spiritual function. These apps are best run in a communal setting, but individuals and families can certainly run them at home. Each entry in this manual contains a statement of the function the particular app is meant to fill and the specifics of how it is run. This is the second iteration of this siddur- 2.0, if you will. In this volume, there are more apps, and we have edited the way chords are written so it will be easier for the novice musician to follow.