VladUZH/harken ? reverse-engineered prompt

Build me a self hosted social listening app called Harken that I can run on my own machine. I want to track a keyword, brand, or product across places like Hacker News, Bluesky, Reddit, Mastodon, RSS, and other supported sources, then see the mentions in a clean local dashboard and in the terminal.

It should store everything in a local SQLite database, work without any signup or telemetry, and still be useful out of the box with sample data and free sources that do not need API keys. I also want basic sentiment scoring and simple theme grouping so I can quickly tell what people are saying and whether it is good or bad.

Please include a small CLI for running a one time scan, repeated monitoring, and backfilling older results, plus a way to group several keywords into a project. If it makes sense, add optional alerts by webhook or email, and optional LLM based theme naming, but keep the default experience fully local and simple.