D661 - Titles, payloads and packages roots

Status: decided Date: 2026-09-09

The data directory has three roots: titles/ for installed titles, payloads/ for single executables run directly, and packages/ for uninstalled inputs. A corpus source names its target root, defaulting to titles, and the other two roots derive from the titles root.

Why: the three are different things, and one root made one-file payloads list as installed titles. Registering the roots through the path model's single registration point makes portable mode and every directory listing follow automatically. Deriving them from the titles root means an override of that root moves all three together.

Rejected:

• One titles/ root for everything: payloads and packages read as titles.
• Resolving each root independently: an override moves one and the others keep writing to the real data directory.