Do you mean where is the directory on your system? It is inside the homeassistant docker container.
But you can’t edit that, at least not in any meaningful way as it will revert to the container version after a restart.
Instead you should:
-
copy the directory to
/config/custom_components
so you end up with those four files in/config/custom_components/lg_netcast/
-
Add a version number in manifest.json.
-
restart HA. You will then be using the version in
custom_components
and can change it to your heart’s content. And it isn’t in the container, so it will stay changed.
See this thread too How to create a custom component from one removed from HA itself
Do bear in mind though that the communication with the LG hardware will be in the pypi package pylgnetcast==0.3.7
. If you need to change that python package you are talking a whole different thing.