Files
openclaw/docs/install/nix.md
the sun gif man d4b4660026 config: stop automatic writes and guard Nix mutators (#78047)
Keep startup-derived plugin enablement, gateway auth tokens, control UI origins, and owner-display secrets runtime-only instead of persisting them into openclaw.json.

Refuse config writers, mutating update/plugin lifecycle commands, and doctor repair/token generation in Nix mode with agent-first nix-openclaw guidance.

Verification:
- pnpm check
- pnpm build
- pnpm test -- src/config/io.write-config.test.ts src/config/mutate.test.ts src/config/io.owner-display-secret.test.ts src/gateway/server-startup-config.recovery.test.ts src/gateway/startup-auth.test.ts src/gateway/startup-control-ui-origins.test.ts src/cli/plugins-cli.install.test.ts src/cli/plugins-cli.policy.test.ts src/cli/plugins-cli.uninstall.test.ts src/cli/plugins-cli.update.test.ts src/cli/update-cli.test.ts src/auto-reply/reply/commands-plugins.install.test.ts src/auto-reply/reply/commands-plugins.test.ts src/commands/onboarding-plugin-install.test.ts src/commands/doctor.runs-legacy-state-migrations-yes-mode-without.e2e.test.ts src/commands/doctor/shared/codex-route-warnings.test.ts src/commands/doctor/repair-sequencing.test.ts src/agents/auth-profile-runtime-contract.test.ts src/auto-reply/reply/agent-runner-execution.test.ts
- GitHub CI green on 05a2c71b90

Co-authored-by: Codex <noreply@openai.com>
2026-05-06 14:43:32 +02:00

4.6 KiB

summary, read_when, title
summary read_when title
Install OpenClaw declaratively with Nix
You want reproducible, rollback-able installs
You're already using Nix/NixOS/Home Manager
You want everything pinned and managed declaratively
Nix

Install OpenClaw declaratively with nix-openclaw - the first-party, batteries-included Home Manager module.

The [nix-openclaw](https://github.com/openclaw/nix-openclaw) repo is the source of truth for Nix installation. This page is a quick overview.

What you get

  • Gateway + macOS app + tools (whisper, spotify, cameras) -- all pinned
  • Launchd service that survives reboots
  • Plugin system with declarative config
  • Instant rollback: home-manager switch --rollback

Quick start

If Nix is not already installed, follow the [Determinate Nix installer](https://github.com/DeterminateSystems/nix-installer) instructions. Use the agent-first template from the nix-openclaw repo: ```bash mkdir -p ~/code/openclaw-local # Copy templates/agent-first/flake.nix from the nix-openclaw repo ``` Set up your messaging bot token and model provider API key. Plain files at `~/.secrets/` work fine. ```bash home-manager switch ``` Confirm the launchd service is running and your bot responds to messages.

See the nix-openclaw README for full module options and examples.

Nix-mode runtime behavior

When OPENCLAW_NIX_MODE=1 is set (automatic with nix-openclaw), OpenClaw enters a deterministic mode for Nix-managed installs. Other Nix packages can set the same mode; nix-openclaw is the first-party reference.

You can also set it manually:

export OPENCLAW_NIX_MODE=1

On macOS, the GUI app does not automatically inherit shell environment variables. Enable Nix mode via defaults instead:

defaults write ai.openclaw.mac openclaw.nixMode -bool true

What changes in Nix mode

  • Auto-install and self-mutation flows are disabled
  • openclaw.json is treated as immutable. Startup-derived defaults stay runtime-only, and config writers such as setup, onboarding, mutating openclaw update, plugin install/update/uninstall/enable, doctor --fix, doctor --generate-gateway-token, and openclaw config set refuse to edit the file.
  • Agents should edit the Nix source instead. For nix-openclaw, use the agent-first Quick Start and set config under programs.openclaw.config or instances.<name>.config.
  • Missing dependencies surface Nix-specific remediation messages
  • UI surfaces a read-only Nix mode banner

Config and state paths

OpenClaw reads JSON5 config from OPENCLAW_CONFIG_PATH and stores mutable data in OPENCLAW_STATE_DIR. When running under Nix, set these explicitly to Nix-managed locations so runtime state and config stay out of the immutable store.

Variable Default
OPENCLAW_HOME HOME / USERPROFILE / os.homedir()
OPENCLAW_STATE_DIR ~/.openclaw
OPENCLAW_CONFIG_PATH $OPENCLAW_STATE_DIR/openclaw.json

Service PATH discovery

The launchd/systemd gateway service auto-discovers Nix-profile binaries so plugins and tools that shell out to nix-installed executables work without manual PATH setup:

  • When NIX_PROFILES is set, every entry is added to the service PATH in right-to-left precedence (matches Nix shell precedence - rightmost wins).
  • When NIX_PROFILES is unset, ~/.nix-profile/bin is added as a fallback.

This applies to both macOS launchd and Linux systemd service environments.

Source-of-truth Home Manager module and full setup guide. Non-Nix CLI setup walkthrough. Containerized setup as a non-Nix alternative. Updating Home Manager-managed installs alongside the package.