Just a short service announcement: I'm happy to say that my recreation of the PA Republican Gerrymander in Dave's Redistricting App is now hosted on Dave's website.
You can access it here.
The boundary between Fattah's and Brady's district might have a couple of misplaced precincts, but outside of Philly proper, all districts should exactly math the legal description I used to create this, except for precinct splits.