Apache SeaTunnel is a distributed integration platform that runs batch, streaming, and change-data-capture pipelines between databases, message queues, data lakes, lakehouses, and SaaS applications without hand-rolled scripts. Pipelines are declared once in a configuration file and executed on your choice of the native Zeta engine, Apache Flink, or Apache Spark, so the same job definition travels across engines without connector rewrites. Real-time CDC captures row changes from major databases with a snapshot-first handoff that never locks the source, while checkpoint-backed recovery restarts jobs from the last completed checkpoint with exactly-once semantics. When an upstream table gains a column, schema evolution propagates the change downstream automatically instead of pausing the pipeline for manual surgery. Roughly two hundred connectors cover relational databases, Kafka, object storage, search indexes, vector stores, and business apps, and the multi-table routing keeps every record on the right destination path. Engineers can dry-run configurations against sampled data before a full launch, isolate failures per table, and route bad records to dead-letter queues. Release 3.0.0 adds AI-assisted configuration generation from natural language, Python sources and transforms, and document parsing with text chunking for RAG preparation. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. Apache-2.0 licensed.

Work, personal, business, and school calendars at different providers double-book because no one system sees your real availability - Keeper solves that multi-calendar collision problem. Its pull-compare-push sync engine aggregates events from Google Calendar, Outlook/Office 365, iCloud, FastMail, any CalDAV server, or read-only iCal/ICS feeds, and pushes blocking events to one or many destination calendars so time slots align everywhere. The design is deliberately content-agnostic - it syncs timeslots, not titles or descriptions, so a personal appointment shows as busy time on your work calendar without leaking details. Sync logic is clean: events Keeper creates carry a traceable UID suffix, deletions propagate, and orphaned entries are purged automatically. A token-authenticated aggregated iCal feed combines selected calendars into one subscribable URL for Apple Calendar or Thunderbird. An optional MCP server gives AI agents read-only calendar access over OAuth 2.1 - list calendars and query events by date range, with no write capability. Built with Next.js and Bun under AGPL-3.0, the standalone Docker image bundles web, API, cron, worker, Redis, and PostgreSQL in one container, and self-hosting unlocks every Pro feature - unlimited calendars and one-minute sync intervals - for free.