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Self-hosted, semantically-connected personal knowledge base

1,527 starsRust

Atomic – self-hosted, semantically-connected personal knowledge base

by kenforthewin·Mar 21, 2026·152 points·27 comments
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AI Analysis

●●SolidShip ItDark HorseBig Brain

Self-hosted Obsidian rival with native MCP server and sqlite-vec semantic search built-in.

Strengths
  • •Rust backend with sqlite-vec enables fast local vector search without heavy dependencies.
  • •MCP server exposure lets Claude access your notes directly without custom integrations.
  • •Native iOS app alongside Tauri desktop client shows serious cross-platform commitment.
Weaknesses
  • •Zero forks and three stars suggests unproven stability compared to Obsidian.
  • •LLM synthesis features risk hallucination without clear verification mechanisms shown.
Category
Productivity
Target Audience

Privacy-focused note-takers, local-first AI enthusiasts, Rust developers

Similar To

Obsidian · Mem.ai · Logseq

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Productivity●●Solid

A note-taking app where notes connect themselves

Unnamed drafts and automatic resurfacing are the two gutsy choices here — start writing and the app tries to pull up related notes for you. It's a neat UX shortcut if the semantic matching is strong, but the landing page hides how recall is implemented (model, privacy, offline), and in a crowded space with Mem/Reflect clones that detail matters.

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