> ## Documentation Index
> Fetch the complete documentation index at: https://openclawonandroid.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Configuration

> Customize your OCA installation — Node.js, OpenClaw config, and environment variables.

## OpenClaw Config

Config lives at `~/.openclaw/openclaw.json`:

```json theme={null}
{
  "channels": {
    "whatsapp": {
      "allowFrom": ["+91XXXXXXXXXX"],
      "groups": { "*": { "requireMention": true } }
    }
  },
  "messages": {
    "groupChat": {
      "mentionPatterns": ["@openclaw"]
    }
  }
}
```

Edit with:

```bash theme={null}
nano ~/.openclaw/openclaw.json
```

***

## Environment Variables

| Variable         | Default                             | Description                          |
| ---------------- | ----------------------------------- | ------------------------------------ |
| `OCA_DIR`        | `~/.oca`                            | Root directory for OCA files         |
| `GLIBC_NODE_DIR` | `~/.oca/node`                       | Node.js installation path            |
| `PATH`           | Prepends `~/.oca/node/bin`          | Ensures glibc Node.js takes priority |
| `TMPDIR`         | `$PREFIX/tmp`                       | Required for glibc compatibility     |
| `OCA_GLIBC`      | `1`                                 | Signals that glibc Node is active    |
| `NODE_OPTIONS`   | `-r ~/.oca/patches/glibc-compat.js` | Loads the Android polyfill           |

To reload:

```bash theme={null}
source ~/.bashrc
```

***

## Node.js Version

The installer defaults to **Node.js v24.14.0**. To change:

```bash theme={null}
# Edit install script
nano ~/.oca/scripts/install-nodejs.sh
# Change: NODE_VERSION="24.14.0"

# Reinstall
bash ~/.oca/scripts/install-nodejs.sh
```

***

## npm Config

```bash theme={null}
# Disable audit prompts
npm config set audit false

# Disable fund messages
npm config set fund false

# Increase network timeout (slow connections)
npm config set fetch-timeout 120000
```

***

## glibc DNS Config

```bash theme={null}
nano $PREFIX/glibc/etc/resolv.conf
```

Default:

```
nameserver 8.8.8.8
nameserver 1.1.1.1
```