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openchamber/packages/web/README.md
T
Colin MollenhourandCopilot e02002bc9f feat(server): add OPENCODE_HOST env var for external OpenCode connections (#499)
* feat(server): add OPENCODE_HOST env var for external OpenCode connections

Allows specifying a full base URL (e.g. https://hostname:4096) for external
OpenCode connections, supporting custom hostnames and HTTPS. When set,
OPENCODE_HOST overrides OPENCODE_PORT. Malformed values are fatal at startup.

* docs: document OPENCODE_HOST env var in README and AGENTS

* Fatal error when OPENCODE_HOST has path, search or hash

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Signed-off-by: Colin Mollenhour <colin@mollenhour.com>

* fix(server): use external origin when re-probing OpenCode

---------

Signed-off-by: Colin Mollenhour <colin@mollenhour.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
2026-02-25 19:42:32 +02:00

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# <picture><source media="(prefers-color-scheme: dark)" srcset="https://github.com/btriapitsyn/openchamber/raw/HEAD/docs/references/badges/openchamber-logo-dark.svg"><img src="https://github.com/btriapitsyn/openchamber/raw/HEAD/docs/references/badges/openchamber-logo-light.svg" width="32" height="32" align="absmiddle" /></picture> @openchamber/web
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Web/PWA interface for the [OpenCode](https://opencode.ai) AI coding agent.
This package installs the `openchamber` CLI that runs a local web server. For the full project overview and screenshots, see the main repo:
https://github.com/btriapitsyn/openchamber
## Installation
```bash
# Quick install (auto-detects your package manager)
curl -fsSL https://raw.githubusercontent.com/btriapitsyn/openchamber/main/scripts/install.sh | bash
# Or install manually
bun add -g @openchamber/web # or npm, pnpm, yarn
```
## Usage
```bash
openchamber # Start on port 3000
openchamber --port 8080 # Custom port
openchamber --daemon # Background mode
openchamber --ui-password secret # Password-protect UI
OPENCODE_PORT=4096 OPENCODE_SKIP_START=true openchamber # Connect to external OpenCode server
OPENCODE_HOST=https://myhost:4096 OPENCODE_SKIP_START=true openchamber # Connect via custom host/HTTPS
openchamber stop # Stop server
openchamber update # Update to latest version
```
### Environment Variables
- `OPENCODE_HOST` - Full base URL of external OpenCode server, e.g. `http://hostname:4096` or `https://hostname:4096` (overrides `OPENCODE_PORT`)
- `OPENCODE_PORT` - Port of external OpenCode server to connect to (instead of starting embedded server)
- `OPENCODE_SKIP_START` - Skip starting embedded OpenCode server (use with `OPENCODE_HOST` or `OPENCODE_PORT` to connect to external instance)
## Prerequisites
- [OpenCode CLI](https://opencode.ai) installed (`opencode`)
- Node.js 20+
## Features
### Core UI
- Branchable chat timeline with `/undo`, `/redo`, and one-click forks from earlier turns
- Smart tool UIs for diffs, file operations, permissions, and long-running task progress
- Multi-agent runs from one prompt with isolated worktrees for safe comparisons
- Git workflows in-app: identities, commits, PR creation, checks, and merge actions
- Context visibility tools (token/cost breakdowns, raw message inspection, and activity summaries)
- Integrated terminal with per-directory sessions and stable performance on heavy output
### Web / PWA
- Cloudflare Quick Tunnel for instant remote access (`--try-cf-tunnel`)
- One-scan onboarding with tunnel QR + password URL helpers
- Mobile-first experience: optimized chat controls, keyboard-safe layouts, and attachment-friendly UI
- Background notifications plus reliable cross-tab session activity tracking
- Built-in self-update + restart flow that keeps your server settings intact
## License
MIT