Configuration

Niuton is configured through config.php at the application root.

Core Settings

<?php
// Database
$db_host = 'localhost';
$db_port = '5432';
$db_name = 'niuton_db';
$db_user = 'niuton_user';
$db_pass = 'your_secure_password';

// Application
$app_name = 'Niuton';
$app_url = 'https://your-domain.net';
$app_env = 'production';  // 'development' or 'production'

// File storage
$userdata_path = __DIR__ . '/userdata';
$max_upload_size = '100M';

// Session
$session_lifetime = 86400;  // 24 hours

AI Provider Configuration

AI providers are configured through the Settings app (Administration > AI Configuration) or via the niuton_system_config table:

Config Key	Description	Example
anthropic_api_key	Anthropic API key	sk-ant-...
openai_api_key	OpenAI API key	sk-...
gemini_api_key	Google Gemini API key	AI...
lmstudio_url	LM Studio endpoint	http://192.168.1.100:1234

Model Selection

Users can select their preferred models in Settings > Aurora:

• Chat Model — Primary conversational AI
• System Model — Background tasks, tool execution
• Vision Model — Image analysis
• Agent Model — Autonomous task execution

System Configuration

The admin panel provides 24 configuration keys:

Key	Type	Default	Description
maintenance_mode	boolean	false	Enable maintenance mode
registration_enabled	boolean	true	Allow new user registration
max_login_attempts	integer	5	Before account lockout
lockout_duration_minutes	integer	15	Lockout duration
default_quota_mb	integer	500	Default user storage quota
shared_room_quota_mb	integer	200	Per-room shared file quota
disabled_apps	json	[]	List of disabled app slugs

Database Connection

The config file establishes a PDO connection with UTF-8 encoding:

$pdo = new PDO(
    "pgsql:host=$db_host;port=$db_port;dbname=$db_name",
    $db_user,
    $db_pass,
    [PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION]
);
$pdo->exec("SET client_encoding = 'UTF8'");

Environment Variables

Apache VirtualHost can set environment variables that override config.php defaults:

SetEnv APP_ENV "development"
SetEnv DB_NAME "niuton_dev"