Here's a short story about finding free DayZ JSON files:
Free for custom objects, Point of Interest (POI) additions, and AI loadouts are primarily shared within community groups and GitHub repositories. These files allow server owners on both PC and consoles to add "pieces" of content like bunkers, trading areas, and reworked airfields without creating full mods. Where to Find Free JSON Files
Master DayZ Server Customization: Everything You Need to Know About JSON Files
Never upload unverified free JSON files directly to a live production server. Set up a local DayZ server (using the official Steam tools) and test loot spawns for 30 minutes.
: Groups like Dayz JSON Builds and DayZ Console Private Server ".XML Modding" frequently host files for custom loadouts and bases.