What companies actually run.
Explore documented company stacks, understand the tradeoffs, and prepare an AI deployment plan your team can review.
Explore company stacks
Tools, migrations, and architecture choices with sources and confidence labels.
Browse the research →Plan an AI deployment
Turn one workflow into a pilot brief with owners, permissions, tests, and open decisions.
Open the Workbench →See how AI fits a specific piece of work.
Explore who a workflow serves, how to deploy it, and what a completed pilot plan looks like. Start with helping sales and solutions teams answer customer RFPs.
// the stack database
Every entry sourced and confidence-labeled.
// latest teardowns
- What Linear actually runs
The most opinionated product in project management runs a deliberately boring stack — TypeScript, Postgres, GCP — except for the one thing they built before almost anything else: the sync engine.
- What Cursor actually runs
A $500M-ARR product built by ~50 engineers on a TypeScript monolith, a Rust orchestrator named Anyrun, and a database migration executed mid-outage.
- What TheTechStack actually runs
A publication about real stacks should show its own. Here's ours: one human, four AI agents, zero client-side JavaScript, and a database that lives in git.