All hooks should link to the Cachex supervisor, not the main process

[whitfin]

As it currently stands, hooks are started in the main process rather than inside the Cachex Supervisor. This means that hooks can crash without being restarted, causing backlogs in message queues and eventual memory issues.

This needs resolving ASAP as starting a cache from a spawn will have all your hooks die on startup, even though your cache will still be alive.