Sidebrain gives each person a dedicated Linux machine and a chat interface to drive it — by voice or text. Your agent reads files, runs commands, tracks reminders, and streams everything back as it happens.
Live workspace
Why Sidebrain
Each user gets their own EC2 instance. Your filesystem, your processes, your shell — isolated and always yours. Nothing is shared with other users.
Hold to record, release to send. Whisper transcribes your audio instantly. Or just type — whatever fits the moment and context.
Tool calls, file edits, and shell output stream back to you over SSE as they happen. No polling. No waiting for a final reply.
The agent runs actual shell commands — git log,
file edits, scripts. If you can type it in a terminal,
you can ask for it in chat.
Reminders are scheduled with at on your sandbox.
When one fires, a web push notification reaches your browser —
even if the tab is closed.
Your OpenCode session and chat history survive sandbox restarts. Open a new conversation and you're back exactly where you left off.
Under the hood
Create an account with Clerk — email, social, or SSO. A webhook fires instantly and kicks off provisioning for your sandbox.
An EC2 instance spins up with cloud-init: OpenCode is installed, your environment is configured. Usually ready in under 60 seconds.
Type or speak. The gateway routes your message to your OpenCode instance and streams every tool call and text delta back live.
Things people ask
List files in ~/notes
Summarise today's commits
Create a new scratchpad
Remind me at 9am for standup
Ready to begin?
One click to claim a private Linux machine, all your own.
