🐧 Cross-platform: Linux64
Compiles standalone on Linux64 (dcclinux64). 30+ optional third-party DB drivers + Redis/cache/JSON/Memory now opt-in behind DATAENGINE_DRIVER_*/DATAENGINE_REDIS defines; InMemoryDataFactory ported to FireDAC TFDMemTable; portability fixes (comparer, Horse Session generics, GuardConnection).
Backend integration suite (developer_friends): 2790/2790 green.