diff --git a/data/example.json b/data/example.json
index ecad298..34d74c1 100644
--- a/data/example.json
+++ b/data/example.json
@@ -42,6 +42,7 @@
 					"events": [
 						{
 							"name": "Aufstand: Mieten",
+							"public": false,
 							"begin": {
 								"timezone_shift": 2,
 								"date": {"year": 2024, "month": 10, "day": 14},
@@ -57,6 +58,7 @@
 						},
 						{
 							"name": "Aufstand: Waffen",
+							"public": false,
 							"begin": {
 								"timezone_shift": 2,
 								"date": {"year": 2024, "month": 10, "day": 21},
@@ -72,6 +74,7 @@
 						},
 						{
 							"name": "Aufstand: Essen",
+							"public": false,
 							"begin": {
 								"timezone_shift": 2,
 								"date": {"year": 2024, "month": 11, "day": 28},
@@ -111,6 +114,7 @@
 					"events": [
 						{
 							"name": "Feier: Bier",
+							"public": false,
 							"begin": {
 								"timezone_shift": 2,
 								"date": {"year": 2024, "month": 10, "day": 18},
@@ -126,6 +130,7 @@
 						},
 						{
 							"name": "Feier: Schnapps",
+							"public": false,
 							"begin": {
 								"timezone_shift": 2,
 								"date": {"year": 2024, "month": 11, "day": 1},
@@ -161,6 +166,7 @@
 					"events": [
 						{
 							"name": "Aufräumen: Flaschen",
+							"public": false,
 							"begin": {
 								"timezone_shift": 2,
 								"date": {"year": 2024, "month": 10, "day": 24},
@@ -200,6 +206,7 @@
 					"events": [
 						{
 							"name": "Infostand",
+							"public": false,
 							"begin": {
 								"timezone_shift": 2,
 								"date": {"year": 2024, "month": 10, "day": 16},
diff --git a/source/database.ts b/source/database.ts
index c88a3ab..020d70d 100644
--- a/source/database.ts
+++ b/source/database.ts
@@ -5,7 +5,7 @@ namespace _zeitbild.database
 	/**
 	 */
 	const _compatible_revisions : Array<string> = [
-		"r1",
+		"r2",
 	];
 	
 		
diff --git a/source/main.ts b/source/main.ts
index 83ffc25..4304b2b 100644
--- a/source/main.ts
+++ b/source/main.ts
@@ -97,7 +97,17 @@ async function data_init(
 				/*const event_ids : Array<_zeitbild.type_local_resource_event_id> = */await Promise.all(
 					calendar_raw.resource.data.events
 					.map(
-						(event_raw : _zeitbild.type_event_object) => _zeitbild.service.resource.event_add(resource_id, event_raw)
+						(event_raw : _zeitbild.type_event_object) => _zeitbild.service.resource.event_add(
+							resource_id,
+							{
+								"name": event_raw["name"],
+								"public": (event_raw["public"] ?? false),
+								"begin": event_raw["begin"],
+								"end": (event_raw["end"] ?? null),
+								"location": (event_raw["location"] ?? null),
+								"description": (event_raw["description"] ?? null),
+							}
+						)
 					)
 				);
 				break;
diff --git a/source/repositories/resource.ts b/source/repositories/resource.ts
index ad68e7f..f8fd7c6 100644
--- a/source/repositories/resource.ts
+++ b/source/repositories/resource.ts
@@ -217,6 +217,7 @@ namespace _zeitbild.repository.resource
 		return {
 			"local_resource_id": stuff.local_resource_id,
 			"name": stuff.event.name,
+			"public": stuff.event.public,
 			"begin": encode_datetime(stuff.event.begin),
 			"end": (
 				(stuff.event.end === null)
@@ -271,6 +272,7 @@ namespace _zeitbild.repository.resource
 			"local_resource_id": row["local_resource_id"],
 			"event": {
 				"name": row["name"],
+				"public": row["public"],
 				"begin": decode_datetime(row["begin"]),
 				"end": (
 					(row["end"] === null)
diff --git a/source/repositories/sql/calendar_open.sql b/source/repositories/sql/calendar_open.sql
new file mode 100644
index 0000000..8dfc13e
--- /dev/null
+++ b/source/repositories/sql/calendar_open.sql
@@ -0,0 +1,44 @@
+SELECT
+	id AS id,
+	name AS name
+FROM
+	calendars
+WHERE
+	(
+		resource_id
+		IN
+		(
+			SELECT
+				id
+			FROM
+				resources
+			WHERE
+				(
+					(
+						(kind = 'local')
+						AND
+						(
+							sub_id
+							IN
+							(
+								SELECT
+									local_resource_id
+								FROM
+									local_resource_events
+								WHERE
+									(public = TRUE)
+								/*
+								GROUP BY
+									local_resource_id
+								 */
+							)
+						)
+					)
+					OR
+					(
+						(kind = 'caldav')
+					)
+				)
+		)
+	)
+;
diff --git a/source/services/calendar.ts b/source/services/calendar.ts
index 3c6c63b..82a4951 100644
--- a/source/services/calendar.ts
+++ b/source/services/calendar.ts
@@ -342,6 +342,7 @@ namespace _zeitbild.service.calendar
 											:
 											"???"
 										),
+										"public": true, // todo?
 										"begin": _zeitbild.helpers.ical_dt_to_own_datetime(vevent.dtstart),
 										"end": (
 											(vevent.dtend !== undefined)
diff --git a/source/types.ts b/source/types.ts
index 920de23..fcc12e9 100644
--- a/source/types.ts
+++ b/source/types.ts
@@ -35,6 +35,7 @@ namespace _zeitbild
 	 */
 	export type type_event_object = {
 		name : string;
+		public : boolean;
 		begin : lib_plankton.pit.type_datetime;
 		end : (
 			null