A modder going by the nickname TLordArbiter has released a PC mod for Pragmata featuring an alternative main character. It offers players a journey alongside Diana with Carl "CJ" Johnson from Grand Theft Auto: San Andreas in the role.
As the model, the modder chose CJ from GTA: San Andreas The Definitive Edition. From a gameplay standpoint, nothing changes — it is simply a replacement of Hugh with another character.
The CJ (GTA San Andreas Definitive Edition) project has already been published on Nexus Mods.