Technical requirements
For this chapter, you will need the Salesforce Foundation/NPSP GitHub repository: https://github.com/SalesforceFoundation/NPSP, which contains the current version of NPSP. NPSP is an open source package that's licensed by Salesforce.org (SFDO) under the BSD-3 Clause License, which can be found at the following link:
https://opensource.org/licenses/BSD-3-Clause.
You will also need the NPSP Public Data Dictionary: https://quip.com/yD1wAsdz1m1Q#bTIACArbZT9.