Waleed
d67e02f978
`vitest.setup.ts` loaded `@testing-library/jest-dom/vitest` unconditionally, so all 1,219 test files paid for it. jest-dom only registers DOM matchers (`toBeInTheDocument`, `toBeVisible`, ...), which are useless without a document — and 985 of those files declare `@vitest-environment node`. Guarding the import on `typeof document !== 'undefined'` loads it for exactly the files that can use it. All 7 files that actually call a jest-dom matcher are explicitly `@vitest-environment jsdom`, so none loses anything; verified by running them. Measured locally, same machine, full suite: baseline Duration 179.47s (setup 367.13s aggregate) guarded Duration 165.78s (setup 252.72s aggregate) 7.6% off the suite, 31% off aggregate setup time. On a node-only subset (50 files, n=3 each) it is 21%: 2.75s -> 2.16s median. Identical results either way: 1225 files / 16184 tests pass, plus one failure that reproduces on unmodified staging (cloud-review-tools.test.ts cannot find `rg` from its spawned python3 locally; CI installs ripgrep explicitly and it passes there). Also fixes two pieces of CI documentation that claimed more than the code does — the same class of thing #6076 cleaned up: - The step was named "Run tests with coverage" but runs `bun run test` = `vitest run`, with no `--coverage` anywhere. - The Codecov upload reads `apps/sim/coverage`, which nothing generates (vitest.config.ts declares no coverage provider). It uploads nothing and still reports success in ~1s because `fail_ci_if_error: false`. Annotated rather than deleted, since whether to enable coverage or drop the step is a call for the team, not a side effect of a perf change.
A workspace to build, deploy and manage AI agents and workflows.
Quickstart
Cloud-hosted: sim.ai
Self-hosted
git clone https://github.com/simstudioai/sim.git && cd sim
bun run setup
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
bun run setup is an interactive wizard: it provisions the database, generates secrets, writes your .env files, connects a Chat API key, and starts Sim the way you choose:
- Local dev — run from source to contribute or hack on Sim
- Docker Compose — a self-contained instance for testing self-hosting
- Kubernetes (Helm) — deploy to a local cluster
When it finishes, open http://localhost:3000.
Manage your install with bun run sim:
bun run sim start | stop | restart # bring your install up / down / cycle
bun run sim status # what's installed and healthy
bun run sim logs # follow logs
bun run sim doctor # diagnose configuration problems
bun run sim down # remove containers (data kept)
bun run sim reset # archive .env and wipe managed data
sim detects how you're running (Docker Compose, local dev, or Kubernetes) and acts accordingly.
Prefer a bare sim? Run bun link once — but note sim lands in ~/.bun/bin, which Homebrew's bun doesn't add to your PATH, so you may need export PATH="$HOME/.bun/bin:$PATH" in your shell profile.
Sim also supports local models via Ollama and vLLM. See the self-hosting docs for details.
Chat API Keys
Chat is a Sim-managed service. bun run setup connects a Chat API key for you — sign in when it opens your browser and the key is stored automatically. To view, create, or revoke keys later, go to sim.ai/selfhost/settings/chat-keys.
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.
