Cerebras Killed Notion, Obsidian, and Your “Second Brain”

Summary: Practical walkthrough of a production retrieval-augmented knowledge base: ingestion, embeddings, metadata and a live build integrating Slack, wiki, GitHub and email.

– Anatomy: ingest messages, docs, code and databases; convert to embeddings with metadata.

– RAG explained: retrieved evidence is injected into prompts to make answers specific and reliable.

– Build demo: agent-driven connectors auto-ingest Slack, GitHub, YouTube and email into a Postgres-backed store.

– Outcome: higher retrieval precision, faster onboarding and searchable company memory at scale.

Quotes:

I thought it’d be kind of funny to make the whole world know I’m taller than Nick Jonas.

No floating 3D brain — just reliable pipelines that let anyone ask anything about the company.

With the knowledge base the model answered 17/20 questions correctly; without it, zero.