Waleed
66478087f7
* fix(sidebar): stop the workspace switcher stranding a phantom hover The switcher's keyboard cursor is set from `onMouseMove` and only cleared when the menu closes, and it paints in `--surface-active` — the same token hover uses. So the last row the pointer crossed keeps a background indistinguishable from hover long after the pointer has gone, sitting alongside the equally-`--surface-active` current workspace as a second phantom-hovered row. It shows without any hovering too: the cursor is seeded to row 0 on open, so any user whose current workspace is not first sees two marked rows immediately. Only bites above the 3-workspace search threshold, which is why it went unnoticed. Paint the cursor only while the user is actually navigating by keyboard. Arrow keys enter that mode, any pointer motion leaves it, so in pointer mode the sole mark is real CSS :hover — which follows the pointer and leaves with it. `highlightedId` still tracks the pointer, so Enter keeps targeting the row last touched; only whether it is drawn changes. This is the pattern emcn's own popover already uses (`isKeyboardNav`, commented "prevent dual highlights") and that `tag-dropdown` consumes, and it matches how Headless UI models a combobox: one modality-driven focus marker, separate from the selected value. The list carries no `aria-activedescendant`/`aria-selected`, so the highlight is purely visual and nothing in the a11y contract changes. * test(sidebar): assert the keyboard cursor on a row that isn't selected Review round 1: the keyboard-positive assertions landed on the current workspace, which carries its own `isActive` fill, so they held whether or not the cursor was painted — the tests could not have caught deleting keyboard-cursor rendering. Navigate with ArrowUp instead, wrapping from the seeded first row to the last, and assert on that row. Verified both directions now: removing the modality gate reddens three tests, removing keyboard painting reddens two. * fix(sidebar): do not arm Enter without a visible target Review round 1: gating the cursor's paint on keyboard mode left Enter still acting on the seeded first row while that row was unmarked. The search field takes focus on open, so Enter could switch workspace with nothing shown as the target — emcn's popover instead holds its selection at -1 and ignores Enter until keyboard nav begins. Enter now acts only once a cursor is on screen, and typing counts as keyboard intent so the common "filter, then Enter" flow lands on a visible top result. Every path to Enter therefore has a marked target. --------- Co-authored-by: Waleed Latif <waleed@simstudio.ai>
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.
