Deploy and Host OpenCode WebUI Workspace on Railway

Self-hosted OpenCode coding environment with a full dev toolchain, served as a password-protected web UI with projects persisted on an attached volume.

No image to build, no VPS to manage. The template provisions the service, the workspace volume, and prompts for the server password on deploy.

About Hosting

The service builds this repo's Dockerfile (Ubuntu 26.04: Python 3.14, Node 24 LTS, Bun, Go, Rust, uv, glab, gh, Wrangler) and runs opencode serve on port 4096. Workspace repos, session data, and projects persist on the attached volume mounted at /home/opencode/workspace. Railway auto-detects the Dockerfile; the service domain targets port 4096.

Why Deploy

Code with an AI agent from any browser, nothing installed locally.
Full toolchain on day one: Python, Node, Bun, Go, Rust, GitHub/GitLab CLIs.
Password-protected, and your workspace survives restarts and redeploys.

Common Use Cases

Remote development sessions from a laptop, tablet, or phone browser.
A persistent sandbox for agent-driven coding tasks.
Trying OpenCode without touching your local machine.

Dependencies for OpenCode WebUI Workspace

Key	Description
`OPENCODE_SERVER_USERNAME`	Server login username (default `opencode`)
`OPENCODE_SERVER_PASSWORD`	Server login password (required)
`RAILWAY_RUN_UID`	Must stay `0`: volumes mount as root, the image runs non-root

Deployment Dependencies

Attached Railway volume mounted at /home/opencode/workspace (projects, sessions, agent state).
Outbound HTTPS to package registries and your model provider; no inbound ports besides the web UI.
After deploy: open the service domain and log in with your username and password.

Source: https://github.com/NOOBGLITCH/opencode-webui-workspace