Embed env_vars guidance in docs

immich_frame/CHANGELOG.md

@@ -1,3 +1,5 @@
+- Added support for configuring extra environment variables via the `env_vars` add-on option alongside config.yaml. See https://github.com/alexbelgium/hassio-addons/wiki/Add-Environment-variables-to-your-Addon-2 for details.
+
 ## "1.0.29.0" (18-10-2025)
 - Minor bugs fixed
 

immich_frame/README.md

@@ -59,7 +59,7 @@ TZ: "Europe/London"
 This addon supports custom scripts and environment variables through the `addon_config` mapping:
 
 - **Custom scripts**: See [Running Custom Scripts in Addons](https://github.com/alexbelgium/hassio-addons/wiki/Running-custom-scripts-in-Addons)
-- **Environment variables**: See [Add Environment Variables to your Addon](https://github.com/alexbelgium/hassio-addons/wiki/Add-Environment-variables-to-your-Addon)
+- **env_vars option**: Use the add-on `env_vars` option to pass extra environment variables (uppercase or lowercase names). See https://github.com/alexbelgium/hassio-addons/wiki/Add-Environment-variables-to-your-Addon-2 for details.
 
 ## Installation
 
@@ -80,4 +80,5 @@ Create an issue on github, or ask on the [home assistant community forum](https:
 
 For more information about Immich Frame, visit: https://immichframe.online/
 
-[repository]: https://github.com/alexbelgium/hassio-addons
+[repository]: https://github.com/alexbelgium/hassio-addons
+

immich_frame/config.yaml

@@ -15,7 +15,7 @@ ports_description:
   8080/tcp: Web UI port
 schema:
   env_vars:
-    - name: match(^[A-Z0-9_]+$)
+    - name: match(^[A-Za-z0-9_]+$)
       value: str?
   ApiKey: str
   ImmichServerUrl: str