UPDATE 12/8/21: Ozark was just one of a series of mods taken down on Tuesday. Popular mod repository LibertyCity released a statement stating Take-Two has requested the removal of the following mods: Vice Cry: Remastered 1.0, OpenManhunt 1.0.0, Liberty revind, Bullworth - OpenBull 1.0.0, ViIV, Grand Theft Auto V: Bullworth 0.1 [ALPHA], SA2LC, and Liberty City & Vice City v4.0.
What's so significant about these ports is they are ports of locations, cities, cars and characters of old Grand Theft Auto titles on the newer Grand Theft Auto engine.
This could potentially be a sign that Rockstar has plans to remaster its older titles.