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Waleed
e802da1075
* fix(rich-markdown-editor): tighten read-only gate for uppercase entities and orphan ref-defs Two silent-corruption cases the idempotency probe can't see: - The HTML-entity safe-list used a case-insensitive regex, so `&`/`<`/`>` were treated as the round-trippable canonical entities and let through as editable, but the serializer only round-trips the lowercase forms and mangles the uppercase ones. Make the safe-list case-sensitive. - An unused link/image reference definition (`[x]: url` with no `[x]` reference) is dropped entirely on serialize, a deletion the idempotency probe misses. Detect orphan definitions and open read-only; used definitions still inline losslessly and stay editable. The use check tolerates bracket-internal padding (`[ x ]`), and GFM footnote definitions (`[^id]: …`) are excluded since they round-trip verbatim. * feat(rich-markdown-editor): VSCode code paste and strip <style>/<script> from pasted HTML - Code copied from VSCode carries a `vscode-editor-data` payload with the source language, but its text/html is per-token colored spans that ProseMirror flattens into plain paragraphs. Read the payload and paste a real fenced code block with the mapped language. markdown/plaintext modes resolve to no language and fall through, so markdown copied from VSCode still parses as rich content rather than a fenced block. - Google Sheets and Word prepend a `<style>` block of CSS that PM's DOM parser walks into the document as literal text. Strip <style>/<script> in transformPastedHTML before parsing. - Add a `==…==` inline-mark hint (allowing a lone interior `=`) so a plain-text paste of `==highlight==` routes through the markdown parser and becomes a highlight mark. * feat(rich-markdown-editor): add highlight (==mark==) support Adds a highlight mark rendered as <mark> and serialized to/from ==text== (Pandoc/Obsidian syntax). A custom inline tokenizer parses ==text== (inner text parsed as inline markdown so nested marks like ==**bold**== survive; the body allows a lone `=` so ==a=b== round-trips). `==` cannot be encoded in the delimiter, so an appendTransaction guard strips the mark from any text that ends up containing `==` (e.g. a toolbar highlight over a==b), keeping the text and never emitting the corrupting ==a==b==. Comparison operators (x == y) stay literal. Wired with an input rule, paste rule, Mod-Shift-H, a bubble-menu button, and themed <mark> styling. Also locks in mark-stacking round-trips across contexts. * feat(rich-markdown-editor): keyboard block reordering (Mod-Shift-Arrow) Mod-Shift-ArrowUp/ArrowDown swaps the current top-level block with its neighbour, carrying the caret at its original offset (newBefore + offset, no off-by-one), and no-ops at the document edges. Exposed as moveBlockUp/moveBlockDown commands (the keyboard shortcuts call them). Pure UI interaction, no schema change. Covered by tests (order, caret offset, edge no-op, list stays intact).
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.
