Update Aqualink Pool Controller Integration?

I am using the Aqualink pool integration burned into the base home assistant. I see the author of this integration has done additional work that I desparately want to try but it hasn’t been pushed through to HA and he is hesitant to do so for some reason. I am running supervised on a VM.
core/homeassistant/components/aqualogic at dev · home-assistant/core (github.com)

Here is the newer code:
swilson/aqualogic: A python library to interface with a Hayward/Goldline AquaLogic/ProLogic pool controller. (github.com)

My question:
What would happen if I took the updated code and put it in my custom_components folder? What happens with the stock integration?