S3DAT — Independent product studio
We build software that remembers.
One founder. A crew of AI agents. Six products in motion, led by two Mac apps: S3 Browser is available now and S3 Brain is coming soon.
Manifesto
Most software is built to be finished. Ours is built to be lived in. We start from a feeling — a browser that remembers, a memory that keeps its sources, a gym that grows with your work — and we don’t stop until the details are as honest as the idea.
02 / Products
Two Mac apps first. Four more in the studio.
S3 Browser is available now and S3 Brain is coming soon. Clidna, QRESTIGE, LIFTJAB and SHADOFINE are taking shape.
S3 Browser
Available macOS Free
Browsing with room to move
- Tab groups you can dock or float.
- Continue Watching from your viewing record, on supported players.
- Browser Brain keeps quotes with their source.
S3 Brain
Coming soon macOS Free
Shared memory for your AI tools
- Shared memory for Claude Code and Codex on your Mac.
- Decisions, tasks and sources stay distinct from proposals.
- Local search, corrections, forgetting and encrypted backups.
03 / The method
Human direction. Agent execution. Relentless verification.
Direct
Every product starts with a human decision: what it should feel like, and what it must never pretend to be.
Orchestrate
A crew of AI agents works in parallel lanes — research, engineering, design and review. Each gets a precise brief.
Verify
Nothing ships because an agent says it is done. Tests, real browsers and evidence decide.
Remember
S3 Brain keeps source-backed decisions and open work in shared memory across Claude Code and Codex Mac coding sessions.
This website was built exactly this way.
Read the colophon 6
products
2
Mac apps
S3 Browser available · S3 Brain coming soon 4
platforms
macOS / iOS / Web / Android