The keeper. Giants sleep in the vault; one wakes when called.
UNDERSEA CURRENT — what moves beneath the modules, not a tool you openHades keeps the large models. They sleep on disk; a module names the one it needs, Hades wakes it, keeps it resident while it is in use, and parks it again when the card is wanted for something else. Modules never load models themselves.
The purpose: a machine with one graphics card can serve image generation, mesh work and an advisor in turn, without anyone managing memory by hand.
Hades lives on the machine that serves the models, not inside the modules. One module on one box runs its own model and never meets Hades; it earns its keep when a GPU box is serving more than one module, or more than one model.