Waleed
d1b01849a8
* improvement(perf): cut server-only and unused code out of the workspace client bundles Every workspace route shipped JavaScript it never executes. Four independent import edges, each fixed by moving a symbol rather than changing behaviour: - js-tiktoken's BPE rank tables (5.4 MB source / 2.5 MB wire) reached the workflow editor because the tokenization barrel re-exported the exact counters alongside the character heuristics. Split into lib/tokenization/accurate.ts, which the barrel no longer re-exports. - crypto-browserify (~105 KB gzip, all 26 workspace routes) came from the Salesforce and Gong triggers importing webhook provider modules that reach node:crypto through @sim/security. The two symbols they actually needed are now in crypto-free modules. - tables, files and knowledge each imported one dependency-free hook from the sidebar-hooks barrel, whose other exports reach the 5 MB generated tool-metadata artifact. Deep-imported per the code-splitting rule in sim-imports.md. - lib/workflows/subblocks/display.ts imported a string constant from a React module under app/, inverting the app/lib layering. Moved to lib/. Also adds a loading boundary to chat/[chatId]. Without one, a dynamic route is prefetched as nothing, so clicking a chat held the previous chat on screen for the whole server round trip. Measured on a production build, JS downloaded before the load event: /w/[workflowId] 7.38 MB -> 4.80 MB (-35%) /logs 4.57 MB -> 4.44 MB /knowledge 4.35 MB -> 4.22 MB /home 4.57 MB -> 4.44 MB crypto-browserify no longer appears in any shipped chunk. The tool-registry boundary baseline is retightened so the reclaimed graph weight cannot silently regress. * improvement(sidebar): move useContextMenu to shared hooks Review flagged the four workspace routes deep-importing `useContextMenu` from the sidebar's hooks barrel as a barrel-convention violation. Fair — the code-splitting exception in sim-imports.md is written for `lazy()` splits, and these are static imports. The hook was in the wrong place to begin with. It is entirely generic — no sidebar-specific references, just right-click state and positioning — and nine consumers across tables, files, knowledge, home, the terminal and the preview editor already reached across features to get it. Moved to `@/hooks`, the repo's shared-hooks location, and every consumer including the sidebar's own now imports it from there. This satisfies the barrel convention rather than making an exception to it, and keeps the graph win: tables, knowledge and files stay off the sidebar barrel's path to `stores/workflow-diff -> serializer -> tools/metadata`, unchanged at 20.19 / 20.89 / 21.37 MB of reachable source.
A workspace to build, deploy and manage AI agents and workflows.
Quickstart
Cloud-hosted: sim.ai
Self-hosted
npx sim-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
Requirements: Node.js 20+ and Docker.
npx sim-setup is an interactive wizard that creates a small sim/ deployment directory, provisions the database, generates secrets, writes .env, connects a Chat API key, and starts the published Sim images with Docker Compose. It does not clone the repository.
When it finishes, open http://localhost:3000.
Inside a cloned Sim repository, run bun run sim-setup to unlock the source-only local development and Kubernetes modes.
Reconfigure an optional capability without rerunning the full wizard:
npx sim-setup config
npx sim-setup add email
npx sim-setup add storage
npx sim-setup add sandbox
npx sim-setup add jobs
npx sim-setup add cache
npx sim-setup add knowledge
npx sim-setup add llm
npx sim-setup add integration slack
npx sim-setup config 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 npx sim-setup status,
which reports whether installed services are running and healthy.
Manage your install from its directory:
npx sim-setup start | stop | restart # bring your install up / down / cycle
npx sim-setup update # pull and apply Compose images
npx sim-setup status # what's installed and healthy
npx sim-setup logs # follow logs
npx sim-setup doctor # diagnose configuration problems
npx sim-setup down # remove containers (data kept)
npx sim-setup reset # archive .env and wipe managed data
The setup package detects how you're running and acts accordingly. Use --dir <path> to create or manage a deployment somewhere other than ./sim.
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. npx sim-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.
