* improvement(ci): decouple image builds from the test gate - build-amd64 now starts immediately and pushes only sha tags (ECR :sha, GHCR :sha-amd64). The EventBridge deploy triggers filter on exactly the latest/staging/dev ECR tags, so nothing deploys from these pushes. - New promote-images job retags sha -> latest/staging (and GHCR latest-amd64/version-amd64) via buildx imagetools once tests and migrations pass — a seconds-long manifest copy instead of rebuilding after the gate. Cuts push-to-deploy from ~13.5 to ~7 minutes. - Split the Next.js production build out of test-build into a parallel Build App job with its own sticky-disk keys, cutting PR feedback from ~5.5 to ~3.5 minutes. - create-ghcr-manifests and process-docs now gate on promote-images. * improvement(ci): harden promotion — atomic retag, stale-run guards, gate all mutable GHCR tags Review follow-ups: - promote-images is a single job (not a matrix): verifies all four :sha manifests exist before moving any deploy tag, so a missing image can't cause a partial mixed-version deploy - stale-run guard on promote-images and create-ghcr-manifests: re-running an old run no longer retags latest/staging back to stale code (a one-click prod rollback); superseded runs skip mutable tags with a warning while immutable sha/version tags still publish - ARM64 build now pushes only the immutable :sha-arm64 tag; latest-arm64 and version tags moved behind the gate into create-ghcr-manifests (closes the pre-existing hole where a failing run moved latest-arm64) - dropped dead detect-version needs from both build jobs - sticky-disk comment corrected (clone + last-writer-wins, not exclusive mounts); build job shares warm bun/node_modules disks, keeps its own turbo cache key so test/build entries don't evict each other
A workspace to build, deploy and manage AI agents and workflows.
Quickstart
Cloud-hosted: sim.ai
Self-hosted
npx simstudio
Docker must be installed and running. Use -p, --port <port> to run Sim on a different port, or --no-pull to skip pulling the latest Docker images.
Capabilities
- Connect 1,000+ integrations and every major LLM
- Add Slack, Notion, HubSpot, Salesforce, databases, and more
- Build agents visually, conversationally, or with code
- Ingest files, knowledge bases, and structured table data
- Monitor runs, logs, schedules, and workflow activity
One workspace, every surface
Chat and workflows are just the start — tables, files, knowledge, and scheduled tasks all live in the same workspace.
Tables — a database, built in |
Files — one store for your team and every agent |
Knowledge — your agents' memory |
Scheduled tasks — runs on your schedule |
Self-hosting
Docker Compose
git clone https://github.com/simstudioai/sim.git && cd sim
docker compose -f docker-compose.prod.yml up -d
Sim also supports local models via Ollama and vLLM. See the Docker self-hosting docs for setup details.
Manual Setup
Requirements: Bun, Node.js v20+, PostgreSQL 12+ with pgvector
- Clone and install:
git clone https://github.com/simstudioai/sim.git
cd sim
bun install
bun run prepare # Set up pre-commit hooks
- Set up PostgreSQL with pgvector:
docker run --name simstudio-db -e POSTGRES_PASSWORD=your_password -e POSTGRES_DB=simstudio -p 5432:5432 -d pgvector/pgvector:pg17
Or install manually via the pgvector guide.
- Configure environment:
cp apps/sim/.env.example apps/sim/.env
# Create your secrets
perl -i -pe "s/your_encryption_key/$(openssl rand -hex 32)/" apps/sim/.env
perl -i -pe "s/your_internal_api_secret/$(openssl rand -hex 32)/" apps/sim/.env
perl -i -pe "s/your_api_encryption_key/$(openssl rand -hex 32)/" apps/sim/.env
# DB configs for migration
cp packages/db/.env.example packages/db/.env
# Edit both .env files to set DATABASE_URL="postgresql://postgres:your_password@localhost:5432/simstudio"
- Run migrations:
cd packages/db && bun run db:migrate
- Start development servers:
bun run dev:full # Starts Next.js app and realtime socket server
Or run separately: bun run dev (Next.js) and cd apps/sim && bun run dev:sockets (realtime).
Chat API Keys
Chat is a Sim-managed service. To use Chat on a self-hosted instance:
- Go to https://sim.ai → Settings → Chat keys and generate a Chat API key
- Set
COPILOT_API_KEYenvironment variable in your self-hosted apps/sim/.env file to that value
Environment Variables
See the environment variables reference for the full list, or apps/sim/.env.example for defaults.
Tech Stack
Next.js · Bun · PostgreSQL · Drizzle · Better Auth · Tailwind — and the rest of the stack
- Framework: Next.js (App Router)
- Runtime: Bun
- Database: PostgreSQL with Drizzle ORM
- Authentication: Better Auth
- Schema Validation: Zod
- UI: Shadcn, Tailwind CSS
- Streaming Markdown: Streamdown
- State Management: Zustand, TanStack Query
- Flow Editor: ReactFlow
- Docs: Fumadocs
- Monorepo: Turborepo
- Realtime: Socket.io
- Background Jobs: Trigger.dev
- Remote Code Execution: E2B
- Isolated Code Execution: isolated-vm
Contributing
We welcome contributions! Please see our Contributing Guide for details.
License
This project is licensed under the Apache License 2.0 - see the LICENSE file for details.





