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Theodore LiandClaude Opus 4.7
bd9e692b91
* feat(redis): allow TLS SNI override for IP-based REDIS_URL
When trigger.dev's hosted workers reach our ElastiCache via PrivateLink,
their REDIS_URL contains the VPCE-assigned IP, not a DNS name. Default
ioredis TLS verification fails because the ElastiCache cert is issued for
the cluster's DNS, not the IP.
Add REDIS_TLS_SERVERNAME env var; when REDIS_URL is rediss:// + IP host,
pass `tls: { servername }` to ioredis so cert hostname verification
matches against the DNS name instead. Throws at client construction if
REDIS_TLS_SERVERNAME is unset in this scenario (fail fast — no silent
TLS bypass).
No-op for in-VPC connections (DNS host), so the always-on Sim app keeps
using default verification.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
* fix(confluence-schemas): expose extendable bases before .superRefine
confluenceCommentScopedSchema and confluenceBlogPostScopedSchema were
built with .extend(...).superRefine(...). superRefine returns a
ZodEffects which has no .extend method, so the three downstream
.extend() calls (confluenceUpdateCommentBodySchema,
confluenceGetBlogPostBodySchema, confluenceUpdateBlogPostBodySchema)
threw at module-init time.
Next.js lazy-loads route code per-request and never executed this
top-level chain, hiding the issue. Trigger.dev's bundler eagerly
evaluates all task-reachable modules at startup, which is why the
trigger.dev deploy surfaced it as "confluenceCommentScopedSchema.extend
is not a function" across every background task that transitively
imports this file.
Fix: introduce un-superRefined base schemas and use them as the .extend
target downstream; apply superRefine after each .extend so validation
behavior is preserved for every consumer.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
* fix(storage-transfer): use z.string().url() for Zod 3 compat
z.url() is Zod 4 top-level syntax. The hoisted node_modules/zod
resolves to v3.25.76 (despite apps/sim/package.json declaring 4.3.6 —
a workspace resolution conflict), so z.url is undefined at runtime.
Trigger.dev's bundler eagerly evaluates all task-reachable modules at
startup and hits this with `external_exports.url is not a function`.
Next.js dev only evaluates routes per-request so the call site never
fires.
Quick fix: revert to the chained .string().url() form which works on
both Zod 3 and Zod 4 (deprecated in 4 but still supported). The
underlying version-resolution conflict is a separate cleanup.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
* fix(mongodb-schemas): expose extendable base before .refine
mongoConnectionBodySchema was built with z.object(...).refine(...). Five
downstream schemas (mongodbQueryBodySchema, mongodbExecuteBodySchema,
mongodbInsertBodySchema, mongodbUpdateBodySchema, mongodbDeleteBodySchema)
.extend() that result, which threw at module-init in the trigger.dev
bundle (same root cause as the confluence and storage-transfer fixes:
.refine returns ZodEffects with no .extend method, and the resolved
zod is v3 even though package.json declares v4).
Fix: keep the un-refined mongoConnectionBaseSchema for downstream
.extend() targets. The pairing-validation refine isn't reattached
because the downstream extensions were never actually evaluating it
(module init threw before they could).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
* fix(redis,mongodb): address PR review comments
- redis.ts: move resolveTlsOptions call outside the try/catch in
getRedisClient so config errors surface instead of being swallowed
into a silent null return.
- mongodb.ts: re-attach mongoUsernamePasswordPaired .refine after each
of the five downstream .extend()s. Mirrors the confluence pattern
and restores the pairing constraint that the original chain dropped.
---------
Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
The open-source platform to build AI agents and run your agentic workforce. Connect 1,000+ integrations and LLMs to orchestrate agentic workflows.
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npx simstudio
Note
Docker must be installed and running on your machine.
Options
| Flag | Description |
|---|---|
-p, --port <port> |
Port to run Sim on (default 3000) |
--no-pull |
Skip pulling latest Docker images |
Self-hosted: 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.
Self-hosted: 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).
Copilot API Keys
Copilot is a Sim-managed service. To use Copilot on a self-hosted instance:
- Go to https://sim.ai → Settings → Copilot and generate a Copilot 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
- 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
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