* docs(helm): document null as the way to remove an inherited env key Setting `app.env.KEY: ""` cannot clear a key that `app.envDefaults` sets: the Secret template drops empty values, and the deployment template treats an empty override as "not overridden" and still inlines the default. Helm's own `KEY: null` deletion is the supported mechanism and already works. The empty-string behavior is load-bearing, not a bug — every key under `app.env` ships as a "" placeholder, and ten collide with a real `envDefaults` value (NEXT_PUBLIC_APP_URL, BETTER_AUTH_URL, ...), so "" has to read as "unspecified" or a default install would blank them out. - README: document `null`, with the --reuse-values and Argo CD valuesObject caveats; correct the claim that `app.env` always wins over `app.envDefaults` - values.yaml + self-hosting docs: same guidance where operators look - sim-helm skill: record why an unset list is the wrong shape here - tests: lock in that null removes a key and "" does not * docs(helm): correct the verify command's chart path and scope the required-secret claim - The verify snippet used a `sim/sim` repo alias that this chart never publishes; every other instruction installs from the local `./helm/sim` path, so the command could not run as written - Nulling a boot-critical key only fails at template time with the chart-managed Secret. `existingSecret` mode skips that validation entirely (the chart cannot read a pre-created Secret), and under ESO the key must instead be mapped in externalSecrets.remoteRefs.app * docs(helm): say null must be applied in every layer that sets a key `null` deletes a key from the map it is applied to, not from the pod. A key set in both `app.env` and `app.envDefaults` survives a null on the app.env entry alone — the deployment then inlines the envDefaults value again. Under ESO a retained `externalSecrets.remoteRefs.app` mapping keeps syncing the key regardless of app.env. - README and self-hosting docs: drop the "works in all three secret modes" shorthand and spell out that every layer setting the key must be nulled, including the ESO remote mapping - tests: cover both halves — nulling only app.env restores the envDefault, nulling both actually removes the key - chart 1.5.4; staging took 1.5.3 in the meantime
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 install
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, and knowledge all live in the same workspace.
Tables — a database, built in |
Files — one store for your team and every agent |
Knowledge — your agents' memory |
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.
Reconfigure an optional capability without rerunning the full wizard:
bun run setup status
bun run setup email
bun run setup storage
bun run setup sandbox
bun run setup jobs
bun run setup cache
bun run setup knowledge
bun run setup llm
bun run setup integration slack
bun run setup status detects the effective local-dev, Docker Compose, or current-context
Helm configuration and reports configured, missing, or invalid capabilities and OAuth
integrations without printing credential values. This is separate from bun run sim status,
which reports whether installed services are running and healthy.
Manage your install with bun run sim:
bun run sim start | stop | restart # bring your install up / down / cycle
bun run sim update # pull/rebuild and apply Compose images
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.




