RADCore is the foundation module. It provides the event system, connection handles, event loops, timers, cross-thread invocation helpers, IODevice, memory buffers, files, binary data streams, JSON, settings, filesystem utilities, process/PTY handling, thread pool/future helpers, and compact value primitives.

Beta notes:

RADCore::EventLoop, RADCore::Connection, RADCore::Timer, RADCore::RADIODevice, RADCore::RADFile, RADCore::RADBuffer, RADCore::RADDataStream, RADCore::RADJsonDocument, and RADCore::RADSettings are the primary foundation APIs.
File watching and process/PTY helpers are Linux-first in this beta.