internal/

Package opencfg holds the resolved form of thread's open options — the one piece of the option vocabulary that thread (which declares the options), its in-tree backends (Memory) and thread/backend (which publishes the resolution to backend authors) all need, kept here so that none of them has to import another to share it.

Package rules holds the small rules every thread.Storage backend must answer identically: the List limit, the metadata and title filters, the paging cursor, and the line discipline of a session's bytes.