diff --git a/README.md b/README.md
index 7e358d3..a21f32b 100644
--- a/README.md
+++ b/README.md
@@ -7,29 +7,38 @@ Swiss knife for calendars
 
 Access to calendar (with credentials)
 
-  * :x: with hardcoded data :wink:
-  * :x: with data from config file with multiple calendars
+* :x: with hardcoded data :wink:
+* :x: with data from config file with multiple calendars
 
 Download calendar events locally
 
-  * :x: choose source calendar
-  * :x: as separate files ?
-  * :x: as an in-memory database ?
+* :x: choose source calendar
+* :x: as separate files ?
+* :x: as an in-memory database ?
 
 Upload calendar events remotely
 
-  * :x: choose target calendar
+* :x: choose target calendar
 
 Merge events
 
-  * :x: merge overlapping events
-  * :x: keep (internal) reference to source-calendars/parent-events
-  * :x: anonymize events
+* :x: merge overlapping events
+* :x: keep (internal) reference to source-calendars/parent-events
+* :x: anonymize events
 
 Web I
 
-  * :x: split into library + CLI util
-  * :x: write an API for the lib
-  * :x: add a web frontend
-  * :x: add user management & multi-account
+* :x: split into library + CLI util
+* :x: write an API for the lib
+* :x: add a web frontend
+* :x: add user management & multi-account
+
+Serve calendar locally
+
+* :x: provide caldav urls for generated calendars
+
+
+## References
+
+* https://github.com/samedi/caldav-go