Self-hosted apps that integrate with Apache Flink

4 open-source, self-hostable projects list Apache Flink as an integration.

• questdbSelf-hosted, open-source time-series database with SAMPLE BY and ASOF join SQL, QuestDB Wire Protocol ingestion, PGWire support and a web console.
• tdengineSelf-hosted open-source time-series database for IoT and industrial data, offering clustering, stream processing, subscriptions, TDgpt AI and Grafana or Kafka links.
• Apache IoTDBApache IoTDB is a self-hosted, open-source time-series database for industrial IoT with high-throughput reads/writes, ultra-high compression, and SQL-like queries.
• nimtableNimtable is a self-hosted, open-source observability platform for Apache Iceberg lakehouses with a web UI and REST API to explore catalogs, run SQL, and manage compaction