I have been thinking about how you could stack directly to your Alby Hub using an exchange API.

If you buy on an exchang with API access that allows withdrawing on lightning you could write a script that periodically checks your balance and then if > 0 generates an invoice with your lightning address and sends straight to Hub.

So far the only place I have seen that looks like it has withdrawal to lightning via API is Strike.

If someone implemented this then they could use strikes DCA feature to stack directly to their hub.

Just interesting to think about what might be possible and how users could instantly take custody of their funds without the need to any action.