The Precinct and Census Block data utilized to create these plans can be found here:
Link to Shapefiles & Block Equivalency Files Based Upon 2020 Census Geography

To facilitate the public interest, it is suggested that interested parties use the provided District Shapefiles to import the plan into a Dave's Redistricting Account: https://davesredistricting.org/maps#home

You may find detailed instructions here: https://medium.com/dra-2020/importing-maps-67b0085c1ab6