The APG mentions Homunculus Familiars in two places.
From the Familiar Master archetype:
From the wise owl perched on the wizard’s shoulder to the crafty gremlin that serves the witch for their own reasons, the ghastly homunculus in the alchemist’s lab to the clever monkey that picks the lock of the thief’s cell, familiars have always served.
From the Familiars section:
Poison Reservoir
Your homunculus familiar has a reservoir for poison, allowing it to apply an injury poison to an adjacent ally’s exposed weapon with a single Interact action. You must supply the poison and instill it into this 6 reservoir using two consecutive Interact actions. You must have a homunculus familiar to select this ability.
But as far as I can tell, neither the APG nor the Bestiary give any rules for making a homunculus into a familiar. Have I missed something from another source or does the APG give us a Familiar Ability that can't currently be used?
