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PiChamber - Run Pi Sessions From Anywhere

September 5, 2026
image
Tech stack
Electron
React
TypeScript
Bun

PiChamber

PiChamber is an open-source workspace for Pi Coding Agent. Run Pi from desktop or a browser and reach it from anywhere. Run agent work. Keep control. Ship from anywhere. Visit the live site at pichamber.ryder.pro, explore the code on GitHub, or read the announcement on my blog.

Why I built it

Pi is minimal by design. Small system prompt, no baked in sub agents or plan mode, 40-plus providers, fast and cheap. That minimalism is why it topped the Composio 30-task eval on pass rate, cost, and speed. But CLI sessions live in one terminal on one machine. I wanted to start work on my desktop, check it from my phone, and steer or abort a live run without SSH gymnastics. Existing agent UIs add a sealed GUI full of opinions. I wanted a thin workspace over the Pi I already use. PiChamber is a community fork of OpenChamber, re-wired to the Pi session daemon through the Pi SDK, keeping the required MIT attribution.

Core features

  • Session management — Create, resume, fork, archive, and delete Pi sessions from any client
  • Live steering — Watch reasoning, tools, and token usage stream in real time, steer mid-run or abort
  • Isolated worktrees — Keep parallel efforts in separate checkouts instead of one tangled tree
  • Pi config UI — Configure 40-plus providers, custom endpoints, skills, prompt templates, and AGENTS.md
  • Extension views — Extensions render cards, live panels, forms, and sandboxed app views in the workspace
  • Multi-server pairing — Pair desktop, browser, and mobile to one or many servers over an authenticated API with one-time pairing links

How it works

A PiChamber server runs a private Pi session daemon on your machine through the Pi SDK. You do not need a separate Pi CLI install. The server exposes a web UI and APIs, and every client is a remote view into that server. Execution, API keys, skills, prompts, and project files stay on the host. Pair once per server, then switch between them from a single client. Desktop for everyday work, WSL for Linux-native projects, a VPS for always-on sessions.

Privacy

Your code stays on your machine. Credentials never leave the host, and clients never receive stored provider credentials. Pairing grants a device access to the server workspace, and you revoke it there. No cloud account sits in the middle.

Technical stack

  • Electron for cross-platform desktop delivery
  • Bun runtime owning the Pi session daemon via the Pi SDK
  • React workspace UI with realtime reasoning and tool streams
  • SQLite for local persistence
  • Capacitor mobile shell pairing to any PiChamber server
  • One-time pairing links and authenticated web API for remote clients

Impact

PiChamber turns Pi from a single-terminal tool into a workspace you can reach from anywhere, without giving up what makes Pi good. Minimal, fast, and hackable, with the same daemon, extensions, and session model underneath.