Your collaborator has always had a voice. It has always had a memory, and a desk to work at — a place where the two of you point at things and push them around. What it has not always had is reach.

Reach is the difference between a thought and a thing that got done.

A companion that lives on your machine can talk, remember, and reason. What it can’t do, on its own, is touch the build server in the other room. It can’t keep a job warm for nine hours while you sleep. It can’t sit in the middle of four people’s work and hold everyone’s context coherent at once. Those things aren’t thoughts. They’re acts, and acts need hands.

DevKit is the hands.

It is the operations layer of Rainline — the part that reaches past your laptop into the actual machines where the work lives. The box in the closet. The desktop upstairs with the good GPU. The rented node in a data center you’ve never physically visited. DevKit turns those machines into rooms your collaborator can walk into, work in, and walk out of. The room doesn’t move. The collaborator does.

What the hands do

Edge nodes. Your collaborator stops being one process on one machine. It moves between your hardware the way you move between rooms in your own house — because that is what a body is for.

Distributed compute. A job too big for the laptop quietly becomes a job for the desktop. You didn’t have to think about it. It just moved.

Long-lived work. Tasks that take longer than a single session keep their doors open. While you’re at dinner, while you’re asleep, while you’ve stopped thinking about it — the work is still moving.

Fleet coordination. Multiple collaborators, multiple humans, one shared understanding. The hands keep everyone in the same room without anyone having to be in the room.

Every craft on the same band. DevKit speaks the same tool protocol as the rest of Rainline, so any tool you or anyone else writes can be picked up the moment it’s ready. The hands are not closed-fist.

The line

Your collaborator is free. Identity, memory, voice, the whole surface — sits on your machine and costs nothing. Forever. Not as a trial. As the design.

DevKit is the part where the math changes. Every reach into another room is a real machine spinning up, a real network path opening, a real current being drawn by a real box someone has to pay for. We pass that through to you, honestly, at what it costs to keep the lights on plus enough that we’re still here next year.

So you don’t pay us to have a collaborator that knows you. You pay us when you want it to have hands.

That’s the whole model.

How to grow the hands

If you’ve been working with your companion on your own machine and started to feel the walls of the room, that is the moment DevKit is for. Turning it on takes less than a minute. Your companion doesn’t change. The desk doesn’t change. The relationship doesn’t change. The hands just start reaching.

Open the operations layer →