# Carbon — Nucleic
Carbon is the layer that remembers — every session kept byte-faithful on your own disks, mirrored across your devices, and ready to resume anywhere. Even the work you haven’t committed.

Carbon · the data layer

# Every session,
on the record.

Carbon is the layer that remembers. Every session’s full story — the conversation, the changes, even the work still in progress — kept byte-faithful on your own disks and mirrored between your devices, ready to pick up anywhere.

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The Carbon Copy

## Not a summary.
The whole thing.

A Carbon Copy is everything a session actually is: the full transcript, the git history your remote hasn’t seen, and the part nobody else keeps — your uncommitted working tree and staged index. Restore one and you don’t get a reconstruction. You get the same dirty files, staged exactly the way you left them.

transcript · history · work in progress
Copied continuously

## A backup you
never think about.

There’s no backup to set up, no schedule to keep, and nothing to remember. As you work, your sessions are quietly copied across the devices you already own — encrypted the whole way, and readable only by you. Even the machine holding a copy can’t read a word of it, which is what makes trusting your own hardware instead of somebody’s cloud a real option.

When a machine goes down

## Seconds lost.
Not a day’s work.

Shut a laptop mid-turn, or lose it entirely, and the session isn’t stranded there. Another device on your mesh rebuilds the workspace from its copies and the agent resumes with its own memory intact — the same conversation, not a fresh one that has to be told the story again.

restored byte for byte
Why it matters

## Your work outlives your machine.

### Replay instantly

Reopen any session and it replays exactly as it happened — no re-running the agent, no round-trip to anyone’s cloud.

### Resume, not restart

The agent’s own memory travels with the copy, so it picks up mid-thought instead of starting over.

### Even the messy parts

Uncommitted edits and staged changes are kept too — the state git alone would lose.

### Yours, on your disk

Code and transcripts stay on your machines under your keys. Nothing has to be uploaded for Nucleic to run.

Keep exploring
Covalence — how it travels→ Control — where it runs→
Open beta

## Keep every session, forever.

Nucleic is in open beta. All it asks is macOS 27 on Apple Silicon.

Download for Apple Silicon All technologies
No account required · private by design · runs offline