Most of what actually happens at work never gets written down. Meetings end, decisions get made, people commit to things verbally. All that lives in someone's head until it doesn't. The tools that exist (Notion, Confluence, Glean, etc.) can only search what's already been formally documented. That's usually not the useful stuff.
Sig is a macOS app for non-technical knowledge workers. You talk about your work: a meeting you just left, a decision that got made, tension you noticed. Sig routes it into two knowledge bases:
Your personal KB — private, on your machine, organized across sessions
Your team KB — only gets what you explicitly review and approve
One thing it isn't: automated note-taking. You still have to sit down and describe what happened. That's intentional. The interpretation comes from you, not a transcript.
Everything is plain text on disk. No server. Works with Claude, ChatGPT, Copilot, Gemini or whatever you already use.
Currently in private beta. Public release very soon.