Lumen

Free, open-source note-taking app that stores and syncs your notes as markdown files in a GitHub repo.

Webfreeglobal

Lumen is a free, open-source note-taking app that syncs notes as plain markdown files in a GitHub repository the user controls. It's built for a distraction-free writing experience following a Zettelkasten-style linking approach. It's aimed at developers and technical users who want their notes version-controlled with git rather than locked in a proprietary app.

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Behind the summary, Matchbox keeps a richer profile of Lumen - the signals our matcher actually reads to decide when to surface it. It stays private; claim the listing to see and control it.

Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

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