diff --git a/calliostro/last-fm-client-bundle/2.0/config/calliostro_lastfm.yaml b/calliostro/last-fm-client-bundle/2.0/config/packages/calliostro_lastfm.yaml
similarity index 51%
rename from calliostro/last-fm-client-bundle/2.0/config/calliostro_lastfm.yaml
rename to calliostro/last-fm-client-bundle/2.0/config/packages/calliostro_lastfm.yaml
index 42f82b893..2a0f5b928 100644
--- a/calliostro/last-fm-client-bundle/2.0/config/calliostro_lastfm.yaml
+++ b/calliostro/last-fm-client-bundle/2.0/config/packages/calliostro_lastfm.yaml
@@ -1,10 +1,14 @@
 calliostro_lastfm:
-    # Required: API Key (get from https://www.last.fm/api/account/create)
+    # Required: API Key for all practical operations (get from https://www.last.fm/api/account/create)
     api_key: '%env(LASTFM_API_KEY)%'
 
-    # Required for write operations: API Secret  
+    # Required for authenticated operations: API Secret
     api_secret: '%env(LASTFM_SECRET)%'
 
+    # Optional: Session key for scrobbling and user operations
+    # Get this via Last.fm OAuth flow or use a pre-generated session key
+    # session_key: '%env(LASTFM_SESSION_KEY)%'
+
     # Optional: HTTP User-Agent header for API requests
     # user_agent: 'MyApp/1.0 +https://myapp.com'
 
diff --git a/calliostro/last-fm-client-bundle/2.0/manifest.json b/calliostro/last-fm-client-bundle/2.0/manifest.json
index 8ff8d3e43..305d922b8 100644
--- a/calliostro/last-fm-client-bundle/2.0/manifest.json
+++ b/calliostro/last-fm-client-bundle/2.0/manifest.json
@@ -7,6 +7,7 @@
     },
     "env": {
         "LASTFM_API_KEY": "",
-        "LASTFM_SECRET": ""
+        "LASTFM_SECRET": "",
+        "#LASTFM_SESSION": ""
     }
 }