Lumen is unclaimed —
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Lumen
A focused place for your notes, tasks, and ideas.·lumentodo.com
Lumen is a minimalist markdown-based productivity system for macOS that combines notes, tasks, and ideas in one workspace, inspired by GTD, Obsidian, and Zettelkasten. It includes AI features such as a self-organizing todo list, inbox processing suggestions, meeting recording and summarization, and an AI chat that can ingest text from other apps. Notes are stored as plain Markdown files in a local vault with no required registration.
What it's for
Organizing notes, tasks, and ideas in one workspaceSelf-organizing a todo list based on a user-defined structure like GTDPrioritizing tasks based on context like location or time availableCategorizing inbox items with AI suggestionsReviewing proposed edits to a todo list via diff viewBringing text from other apps into AI chat for follow-ups, summaries, or draftingRecording and summarizing meetings into notes and action itemsWriting in a markdown editor with note hyperlinks and backlinksSaving and reusing custom AI prompts
Features 10
- AI chat with Cmd+H shortcut to bring in text from other apps
- Custom prompt library for reuse in chat and notes
- Diff view for reviewing proposed todo list edits
- Inbox processing with categorization suggestions
- Local Markdown file storage (no vendor lock-in)
- Markdown editor with note hyperlinks and backlinks
- Meeting audio recording with note and action item generation
- Self-healing/self-organizing AI todo list
- Uses user's own OpenAI and Speech-to-Text API keys for AI features
- Works with existing local Obsidian vaults
At a glance
TypeDesktop app
DeploymentInstalled (local)
PlatformsmacOS
Integrations
ObsidianOpenAI
Pricing
The page mentions 'Free licences remaining' during the beta period, but no pricing plans or amounts are stated.