CompreFace (CPU) is a leading free and open-source face recognition system
You can choose between different Builds

FaceNet(default), (compreface:0.6.1) - For general purposes. Support CPU without AVX2
Arcface-R100, (compreface:0.6.1-arcface-r100) - The most accurate model, but the most slowest
MobileNet, (compreface:0.6.1-mobilenet) - The fastest model among CPU only models

More Infos: https://github.com/exadel-inc/CompreFace/blob/master/custom-builds/README.md Database

by default this App install a PostgresSQL Server. The Data are stored in the given Appdata Folder.
If you allready have your own Postgres Server running, you can setup a external Server.
1. Click on "Show more settings"
2. Enter the Username and URL of your PostgresSQL Server. Note: The User has to be SuperUser Rights
3. Set the Variable EXTERNAL_DB to "True"
The URL should look like this:

jdbc:postgresql://IP:PORT/DATABASENAME
like:
jdbc:postgresql://192.168.1.254:5432/compreface