Open Source SaaS Studio

AI-native software, built in public, designed for your friendly local Claude.

Cornerstone Commons is a living knowledge product under the CornerstoneSaaS umbrella: open foundations, agent-first workflows, and real shipping velocity. No black-box lock-in. No fake demos. Just working software.

Open-source DNA
AI-native product loops
Local-Claude compatible

Open Source SaaS

Composable products, transparent internals, and straightforward deployment paths you can own end to end.

Own your stack

AI Native

Features are designed around fast human+model loops, not bolted-on text boxes added after the fact.

Ship with agents

Friendly Local Claude

Work naturally with Claude in your local workflow for planning, implementation, and continuous iteration.

Developer-first by default

Public Projects

Cornerstone Commons
commons