How to develop new card?

Hi guys!
I followed the Frontend development and I’ve set up the environment on a VM apart from my production HA.

When I execute script/develop or script/build_frontend execution never ends (which I don’t know if it’s as it should), but the point is that I’ve found nothing about creating a card or modifiying the frontend…

The only reference I found is the Cookbook where there are huge and complex frontends… nothing compared with what I’m looking for:

  • A new arrangement of existing data.
  • a mix of a couple of components, and perhaps gather data from the database.

So, my idea is to modify existing polymer components, and I’m only looking for someone who point my in the right direction, as I don’t even know where are the files to modify.

Thanks in advance and happy new year! :slight_smile:

script/develop serves the frontend code up to your backend as long as you properly configured it as described here

I don’t really understand what you’re trying to do, so can’t really point you in the right direction in that regard. I would suggest using #devs_frontend

Thanks iantrich!

What I’m really want to do is use an my-custom-weather or my-custom-light cards.

I did (or I think I did) but after executing script/build_frontend, when reaches Finished 'build-translations' after 18 ms stay there and never return to shell (which I don’t know if it’s the behaviour it should do).

I’ll give it a try