Your coding agents, on a box you own, from your phone.

Claude Code, Codex and OpenCode on a machine in your own account, with a phone UI that shows you which agent needs you and lets you answer with a tap.

Accounts

GitHub
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Hugging Face
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Your boxes

New box

Free tiers on both. A codespace stops after an hour idle and keeps everything; a Space sleeps after two idle days and, without paid storage, forgets sign-ins when it restarts.

Signing you in…

Hi . Name your box.

A 2-core codespace on your GitHub account. It stops after an hour idle and restarts on your next visit with everything kept; the free plan includes 120 core-hours a month. Its port is private to you.

A public Space on free cpu-basic hardware. Collie's token is the door, not the Space's visibility.

Creating your box

This takes a few minutes the first time. Keep this page open.

Your box is running.

Open my box

Box:

Root token, shown once. Your phone trades it for its own device token on first open. Keep a copy if you want to add another device later without ssh:

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Source · Herdr and Collie by their authors · no cookies, no analytics, no server