Waleed edc25aa976 docs(helm): document null as the way to remove an inherited env key (#6801)
* 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
2026-08-17 18:16:35 -07:00

Sim.ai Documentation Slack X

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Sim — Integrate, Context, Build, and Monitor AI agents

A workspace to build, deploy and manage AI agents and workflows.

Quickstart

Cloud-hosted: sim.ai

Open sim.ai

Self-hosted

git clone https://github.com/simstudioai/sim.git && cd sim
bun install
bun run setup

Open http://localhost:3000

The Sim platform — chat on the left, the visual workflow builder on the right

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 in Sim — structured data your agents can query

Tables — a database, built in

Files in Sim — documents for your team and every agent

Files — one store for your team and every agent

Knowledge bases in Sim — synced docs your agents can search

Knowledge — your agents' memory

Self-hosting

Requirements: Bun and Docker.

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

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.

Built by the Sim team in San Francisco

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