Just pull into frontend

src-ui/src/app/components/admin/config/config.component.ts

@@ -69,6 +69,7 @@ export class ConfigComponent
   public configForm = new FormGroup({})
 
   public errors = {}
+  public externallyConfiguredVariables = new Set<string>()
 
   get optionCategories(): string[] {
     return Object.values(ConfigCategory)
@@ -152,6 +153,9 @@ export class ConfigComponent
   }
 
   private initialize(config: PaperlessConfig) {
+    this.externallyConfiguredVariables = new Set(
+      config.externally_configured_variables ?? []
+    )
     if (!this.store) {
       this.store = new BehaviorSubject(config)
 
@@ -227,6 +231,10 @@ export class ConfigComponent
     return this.configForm.get(key).value != null
   }
 
+  public isExternallyConfigured(configKey: string): boolean {
+    return this.externallyConfiguredVariables.has(configKey)
+  }
+
   public resetOption(key: string) {
     this.configForm.get(key).setValue(null)
   }

src-ui/src/app/data/paperless-config.ts

@@ -422,6 +422,7 @@ export const PaperlessConfigOptions: ConfigOption[] = [
 ]
 
 export interface PaperlessConfig extends ObjectWithId {
+  externally_configured_variables: string[]
   output_type: OutputTypeConfig
   pages: number
   language: string