diff --git a/src/config/paths.ts b/src/config/paths.ts
index e940671..0fa7f01 100644
--- a/src/config/paths.ts
+++ b/src/config/paths.ts
@@ -13,3 +13,7 @@ export const ADEVTOOL_DIR = path.join(OS_CHECKOUT_DIR, 'vendor/adevtool')
 
 export const CONFIG_DIR = process.env['ADEVTOOL_CONFIG_DIR'] ?? path.join(ADEVTOOL_DIR, 'config')
 export const DEVICE_CONFIG_DIR = path.join(CONFIG_DIR, 'device')
+
+export const BUILD_INDEX_DIR = path.join(CONFIG_DIR, 'build-index')
+export const BUILD_INDEX_FILE = path.join(BUILD_INDEX_DIR, 'build-index.yml')
+export const MAIN_BUILD_INDEX_PART = path.join(BUILD_INDEX_DIR, 'build-index-main.yml')
diff --git a/src/images/build-index.ts b/src/images/build-index.ts
index d6ed002..eb0045c 100644
--- a/src/images/build-index.ts
+++ b/src/images/build-index.ts
@@ -5,7 +5,9 @@ import path from 'path'
 import YAML from 'yaml'
 import { YAMLMap } from 'yaml/types'
 
+import { loadAndMergeConfig } from '../config/config-loader'
 import { DeviceBuildId, DeviceConfig, makeDeviceBuildId } from '../config/device'
+import { BUILD_INDEX_FILE } from '../config/paths'
 
 export type BuildIndex = Map<DeviceBuildId, BuildProps>
 export type BuildProps = Map<string, string>
@@ -55,6 +57,15 @@ const PAGE_TYPES: Record<string, PageTypeInfo> = {
   },
 }
 
+export async function loadBuildIndex(filePath: string = BUILD_INDEX_FILE): Promise<BuildIndex> {
+  let obj: any = await loadAndMergeConfig(filePath, {})
+  let outerMap = new Map<string, any>(Object.entries(obj))
+  for (let k of outerMap.keys()) {
+    outerMap.set(k, new Map<string, string>(Object.entries(outerMap.get(k))))
+  }
+  return outerMap as BuildIndex
+}
+
 export async function fetchBuildIndex(deviceConfigs: DeviceConfig[]): Promise<YAMLMap> {
   return fetchBuildIndexInner(deviceConfigs)
 }