I’m new to HAOS and have been setting up a new server and that works OK. I’ve noticed that the configuration.yaml file remains with the default content after i add various sensors, switches, cards etc. The home-assistant_v2.db file has grown to 36MB which is i suppose where the configuration lives. Is the configuration.yaml file no longer the place where configurations now live?
The reason i ask is that the card_mod plugin install instructions are to add an entry in configuration.yaml but this isn’t working. There are no errors, it just doesn’t change the card style when the card yaml is modded per instructions.
Some integrations are configured via configuration.yaml, some are only configured via the UI, and some are possible to do with both. When you add an integration or device via the UI, it does not get added to configuration.yaml.
The db file is also not where the configuration lives, it is mostly entity state information and history.
If you really wanted to go looking “configuration” data, it’s in /config/.storage.
None of this is at all related to your issue, though. You should probably reframe your question as a more specific cardmod question, including what instructions you’ve followed, what type of card you are trying to use cardmod on, what style you’re trying to achieve, etc.