Relative paths for resolving assets

[zjean]

I have the src folder of this repo as /config/guiton in my esphome install.
That is because I have other esphome devices that have their own config (and subdirectories) and would like to keep things organized.
And reuse the package for multiple displays.

In the main directory of ESPHome I have my display.yml file (created via the webUI).

I now try to build, but get an error about the files not being found:

Is it possible to resolve them, for example via a substitution of the base path?

Like this (for image.yml)

- file: '${base_path}assets/img/loading/homeassistant.png'
  id: ha_img
  type: rgb565
  resize: 400x82
  transparency: alpha_channel

<details><summary>Details</summary>
<p>

substitutions:
display_name: display01
display_friendly_name: Display My Room
base_path: "guition"

ENTITIES

weather_entity: "weather.home"
temperature_entity: "sensor.outside_temperature"
humidity_entity: "sensor.outside_humidity"
climate_entity: "climate.kamer_1"

SETTINGS

secondary_language: "ru"
timezone: "Europe/Moscow"

packages:
guition: !include guition/main.yaml

</p>
</details> 


And is it possible to define de secrets as substutions, so I can overwrite them per device without touching the original files?

If you like I can create a PR for these changes

[alaltitov]

I understand this is for those using the ESPHome Builder integration with Home Assistant? Am I correct in assuming that if base_url is left empty, everything will remain as is? If so, then yes, I like that idea. As for secrets.yaml, things are a bit more complicated, since the !secret directive won't work in that case. Of course, there's a way around this, but for now, the usefulness of this for the general public is debatable, unless you have a compelling argument. Otherwise, I'd be happy to see your PR.