Sadie

Sadie reads what you read, builds a model of how you think, and surfaces timely angles worth your voice.

Sadie is a single-user AI companion that compounds on what you feed it. Drop in sources, your own writing, and the conversations you want to follow, and Sadie maintains a compounding wiki, builds a working model of how you think, and watches the live discourse around your obsessions.

The point is not more information. It is the right three cards, on the right morning, framed in language you could actually say out loud.

Sadie is SaaS-primary and self-hostable. One user per deployment. Your data stays in a Postgres database you control: local Postgres in development, Neon Postgres in production.

The three surfaces you’ll live in

Today: three high-conviction discourse opportunities per session. Each card explains why it’s live, why it’s relevant to you, who’s already talking, and what you could plausibly add.
Memory: the compounding layer. A knowledge graph, a growing wiki of your own thought, briefs that summarize what you know, and a Soul page that mirrors how you think back to you.
Studio: a Tiptap writing surface with multiplayer, text-anchored comments, and a path to file polished drafts back into the wiki.

Feeds, Chats, Access, and Settings round out the app. The concepts section walks through the data model; surfaces documents each screen in detail.