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uiserver/api/devices.js

@@ -2,7 +2,7 @@
  * Devices API - List unique device/channel pairs
  */
 
-module.exports = function setupDevicesApi(app, { db, OUTPUT_CHANNELS }) {
+module.exports = function setupDevicesApi(app, { db, getOutputChannels }) {
     // GET /api/devices - Returns list of unique device/channel pairs (sensors + outputs)
     app.get('/api/devices', (req, res) => {
         try {
@@ -12,7 +12,8 @@ module.exports = function setupDevicesApi(app, { db, OUTPUT_CHANNELS }) {
             const sensorRows = sensorStmt.all();
 
             // Add output channels with 'output' as device
-            const outputRows = OUTPUT_CHANNELS.map(ch => ({
+            const outputChannels = getOutputChannels();
+            const outputRows = outputChannels.map(ch => ({
                 device: 'output',
                 channel: ch.channel
             }));

uiserver/api/index.js

@@ -6,11 +6,12 @@ const setupAuthApi = require('./auth');
 const setupViewsApi = require('./views');
 const setupRulesApi = require('./rules');
 const setupOutputsApi = require('./outputs');
+const setupOutputConfigApi = require('./output-config');
 const setupDevicesApi = require('./devices');
 const setupReadingsApi = require('./readings');
 
 module.exports = function setupAllApis(app, context) {
-    const { db, bcrypt, jwt, JWT_SECRET, OUTPUT_CHANNELS, OUTPUT_BINDINGS, runRules, activeRuleIds } = context;
+    const { db, bcrypt, jwt, JWT_SECRET, getOutputChannels, getOutputBindings, runRules, activeRuleIds } = context;
 
     // Auth middleware helpers
     const checkAuth = (req, res, next) => {
@@ -37,7 +38,8 @@ module.exports = function setupAllApis(app, context) {
     setupAuthApi(app, { db, bcrypt, jwt, JWT_SECRET });
     setupViewsApi(app, { db, checkAuth, requireAdmin });
     setupRulesApi(app, { db, checkAuth, requireAdmin, runRules, activeRuleIds });
-    setupOutputsApi(app, { db, OUTPUT_CHANNELS, OUTPUT_BINDINGS });
-    setupDevicesApi(app, { db, OUTPUT_CHANNELS });
+    setupOutputConfigApi(app, { db, checkAuth, requireAdmin });
+    setupOutputsApi(app, { db, getOutputChannels, getOutputBindings });
+    setupDevicesApi(app, { db, getOutputChannels });
     setupReadingsApi(app, { db });
 };

uiserver/api/output-config.js

@@ -0,0 +1,162 @@
+/**
+ * Output Config API - CRUD for output channel configurations
+ */
+
+module.exports = function setupOutputConfigApi(app, { db, checkAuth, requireAdmin }) {
+    // Apply checkAuth middleware to output config routes
+    app.use('/api/output-configs', checkAuth);
+
+    // GET /api/output-configs - List all output configs
+    app.get('/api/output-configs', (req, res) => {
+        try {
+            if (!db) throw new Error('Database not connected');
+            const stmt = db.prepare('SELECT * FROM output_configs ORDER BY position ASC');
+            const rows = stmt.all();
+            res.json(rows);
+        } catch (err) {
+            res.status(500).json({ error: err.message });
+        }
+    });
+
+    // POST /api/output-configs - Create new output config (admin only)
+    app.post('/api/output-configs', requireAdmin, (req, res) => {
+        const { channel, description, value_type, min_value, max_value, device, device_channel } = req.body;
+
+        if (!channel || !value_type) {
+            return res.status(400).json({ error: 'Missing required fields: channel, value_type' });
+        }
+
+        try {
+            // Get max position
+            const maxPos = db.prepare('SELECT MAX(position) as max FROM output_configs').get();
+            const position = (maxPos.max ?? -1) + 1;
+
+            const stmt = db.prepare(`
+                INSERT INTO output_configs (channel, description, value_type, min_value, max_value, device, device_channel, position)
+                VALUES (?, ?, ?, ?, ?, ?, ?, ?)
+            `);
+            const info = stmt.run(
+                channel,
+                description || '',
+                value_type,
+                min_value ?? 0,
+                max_value ?? 1,
+                device || null,
+                device_channel || null,
+                position
+            );
+
+            global.insertChangelog(req.user?.username || 'admin', `Created output config "${channel}"`);
+
+            res.json({
+                id: info.lastInsertRowid,
+                channel,
+                description,
+                value_type,
+                min_value: min_value ?? 0,
+                max_value: max_value ?? 1,
+                device,
+                device_channel,
+                position
+            });
+        } catch (err) {
+            if (err.message.includes('UNIQUE constraint')) {
+                return res.status(400).json({ error: 'Channel name already exists' });
+            }
+            res.status(500).json({ error: err.message });
+        }
+    });
+
+    // PUT /api/output-configs/:id - Update output config (admin only)
+    app.put('/api/output-configs/:id', requireAdmin, (req, res) => {
+        const { channel, description, value_type, min_value, max_value, device, device_channel } = req.body;
+
+        try {
+            const oldConfig = db.prepare('SELECT * FROM output_configs WHERE id = ?').get(req.params.id);
+            if (!oldConfig) {
+                return res.status(404).json({ error: 'Output config not found' });
+            }
+
+            const stmt = db.prepare(`
+                UPDATE output_configs 
+                SET channel = ?, description = ?, value_type = ?, min_value = ?, max_value = ?, device = ?, device_channel = ?
+                WHERE id = ?
+            `);
+            const info = stmt.run(
+                channel ?? oldConfig.channel,
+                description ?? oldConfig.description,
+                value_type ?? oldConfig.value_type,
+                min_value ?? oldConfig.min_value,
+                max_value ?? oldConfig.max_value,
+                device ?? oldConfig.device,
+                device_channel ?? oldConfig.device_channel,
+                req.params.id
+            );
+
+            if (info.changes > 0) {
+                const changes = [];
+                if (oldConfig.channel !== channel) changes.push(`channel: ${oldConfig.channel} → ${channel}`);
+                if (oldConfig.device !== device) changes.push(`device: ${oldConfig.device || 'none'} → ${device || 'none'}`);
+                if (oldConfig.device_channel !== device_channel) changes.push(`device_channel: ${oldConfig.device_channel || 'none'} → ${device_channel || 'none'}`);
+
+                const changeText = changes.length > 0
+                    ? `Updated output config "${channel}": ${changes.join(', ')}`
+                    : `Updated output config "${channel}"`;
+                global.insertChangelog(req.user?.username || 'admin', changeText);
+
+                res.json({ success: true, id: req.params.id });
+            } else {
+                res.status(404).json({ error: 'Output config not found' });
+            }
+        } catch (err) {
+            if (err.message.includes('UNIQUE constraint')) {
+                return res.status(400).json({ error: 'Channel name already exists' });
+            }
+            res.status(500).json({ error: err.message });
+        }
+    });
+
+    // DELETE /api/output-configs/:id - Delete output config (admin only)
+    app.delete('/api/output-configs/:id', requireAdmin, (req, res) => {
+        try {
+            const config = db.prepare('SELECT channel FROM output_configs WHERE id = ?').get(req.params.id);
+            if (!config) {
+                return res.status(404).json({ error: 'Output config not found' });
+            }
+
+            const stmt = db.prepare('DELETE FROM output_configs WHERE id = ?');
+            const info = stmt.run(req.params.id);
+
+            if (info.changes > 0) {
+                global.insertChangelog(req.user?.username || 'admin', `Deleted output config "${config.channel}"`);
+                res.json({ success: true });
+            } else {
+                res.status(404).json({ error: 'Output config not found' });
+            }
+        } catch (err) {
+            res.status(500).json({ error: err.message });
+        }
+    });
+
+    // POST /api/output-configs/reorder - Reorder output configs (admin only)
+    app.post('/api/output-configs/reorder', requireAdmin, (req, res) => {
+        const { order } = req.body;
+        if (!Array.isArray(order)) {
+            return res.status(400).json({ error: 'Invalid format' });
+        }
+
+        const updateStmt = db.prepare('UPDATE output_configs SET position = ? WHERE id = ?');
+        const updateMany = db.transaction((items) => {
+            for (const item of items) {
+                updateStmt.run(item.position, item.id);
+            }
+        });
+
+        try {
+            updateMany(order);
+            res.json({ success: true });
+        } catch (err) {
+            res.status(500).json({ error: err.message });
+        }
+    });
+};

uiserver/api/outputs.js

@@ -2,10 +2,10 @@
  * Outputs API - Output channel definitions and values
  */
 
-module.exports = function setupOutputsApi(app, { db, OUTPUT_CHANNELS, OUTPUT_BINDINGS }) {
+module.exports = function setupOutputsApi(app, { db, getOutputChannels, getOutputBindings }) {
     // GET /api/outputs - List output channel definitions
     app.get('/api/outputs', (req, res) => {
-        res.json(OUTPUT_CHANNELS);
+        res.json(getOutputChannels());
     });
 
     // GET /api/outputs/values - Get current output values
@@ -24,7 +24,8 @@ module.exports = function setupOutputsApi(app, { db, OUTPUT_CHANNELS, OUTPUT_BIN
                 result[row.channel] = row.value;
             });
             // Fill in defaults for missing channels
-            OUTPUT_CHANNELS.forEach(ch => {
+            const outputChannels = getOutputChannels();
+            outputChannels.forEach(ch => {
                 if (result[ch.channel] === undefined) {
                     result[ch.channel] = 0;
                 }
@@ -55,8 +56,9 @@ module.exports = function setupOutputsApi(app, { db, OUTPUT_CHANNELS, OUTPUT_BIN
             });
 
             // Map to device commands
+            const bindings = getOutputBindings();
             const commands = {};
-            for (const [outputChannel, binding] of Object.entries(OUTPUT_BINDINGS)) {
+            for (const [outputChannel, binding] of Object.entries(bindings)) {
                 const value = outputValues[outputChannel] ?? 0;
                 const deviceKey = `${binding.device}:${binding.channel}`;
                 commands[deviceKey] = {

uiserver/src/App.js

@@ -6,6 +6,7 @@ import SettingsIcon from '@mui/icons-material/Settings';
 import ShowChartIcon from '@mui/icons-material/ShowChart';
 import DashboardIcon from '@mui/icons-material/Dashboard';
 import RuleIcon from '@mui/icons-material/Rule';
+import SettingsInputComponentIcon from '@mui/icons-material/SettingsInputComponent';
 
 import Settings from './components/Settings';
 import Chart from './components/Chart';
@@ -13,6 +14,7 @@ import Login from './components/Login';
 import ViewManager from './components/ViewManager';
 import ViewDisplay from './components/ViewDisplay';
 import RuleEditor from './components/RuleEditor';
+import OutputConfigEditor from './components/OutputConfigEditor';
 
 const darkTheme = createTheme({
     palette: {
@@ -105,7 +107,10 @@ export default class App extends Component {
                                     </>
                                 )}
                                 {user && user.role === 'admin' && (
+                                    <>
                                         <Button color="inherit" component={Link} to="/rules" startIcon={<RuleIcon />}>Rules</Button>
+                                        <Button color="inherit" component={Link} to="/outputs" startIcon={<SettingsInputComponentIcon />}>Outputs</Button>
+                                    </>
                                 )}
                                 {user && (
                                     <Button color="inherit" component={Link} to="/settings" startIcon={<SettingsIcon />}>Settings</Button>
@@ -123,6 +128,7 @@ export default class App extends Component {
                             <Route path="/" element={<ViewManager user={user} />} />
                             <Route path="/views/:id" element={<ViewDisplay />} />
                             <Route path="/rules" element={<RuleEditor user={user} />} />
+                            <Route path="/outputs" element={<OutputConfigEditor user={user} />} />
                             <Route path="/live" element={
                                 <Chart
                                     selectedChannels={selectedChannels}

uiserver/src/components/OutputConfigEditor.js

@@ -0,0 +1,371 @@
+import React, { Component } from 'react';
+import {
+    Container, Typography, Paper, List, ListItem, ListItemText,
+    Button, TextField, Dialog, DialogTitle, DialogContent, DialogActions,
+    FormControl, InputLabel, Select, MenuItem, Box, IconButton,
+    Chip, Switch, FormControlLabel
+} from '@mui/material';
+import SettingsInputComponentIcon from '@mui/icons-material/SettingsInputComponent';
+import AddIcon from '@mui/icons-material/Add';
+import DeleteIcon from '@mui/icons-material/Delete';
+import EditIcon from '@mui/icons-material/Edit';
+import ArrowUpwardIcon from '@mui/icons-material/ArrowUpward';
+import ArrowDownwardIcon from '@mui/icons-material/ArrowDownward';
+import LinkIcon from '@mui/icons-material/Link';
+import LinkOffIcon from '@mui/icons-material/LinkOff';
+
+class OutputConfigEditor extends Component {
+    constructor(props) {
+        super(props);
+        this.state = {
+            configs: [],
+            loading: true,
+            error: null,
+
+            // Dialog state
+            open: false,
+            editingId: null,
+            channel: '',
+            description: '',
+            value_type: 'boolean',
+            min_value: 0,
+            max_value: 1,
+            device: '',
+            device_channel: ''
+        };
+    }
+
+    componentDidMount() {
+        this.loadConfigs();
+    }
+
+    isAdmin() {
+        const { user } = this.props;
+        return user && user.role === 'admin';
+    }
+
+    loadConfigs = async () => {
+        try {
+            const res = await fetch('/api/output-configs');
+            const configs = await res.json();
+            this.setState({ configs, loading: false });
+        } catch (err) {
+            this.setState({ error: err.message, loading: false });
+        }
+    };
+
+    handleOpenCreate = () => {
+        this.setState({
+            open: true,
+            editingId: null,
+            channel: '',
+            description: '',
+            value_type: 'boolean',
+            min_value: 0,
+            max_value: 1,
+            device: '',
+            device_channel: ''
+        });
+    };
+
+    handleOpenEdit = (config, e) => {
+        e.stopPropagation();
+        this.setState({
+            open: true,
+            editingId: config.id,
+            channel: config.channel,
+            description: config.description || '',
+            value_type: config.value_type,
+            min_value: config.min_value,
+            max_value: config.max_value,
+            device: config.device || '',
+            device_channel: config.device_channel || ''
+        });
+    };
+
+    handleSave = async () => {
+        const { editingId, channel, description, value_type, min_value, max_value, device, device_channel } = this.state;
+        const { user } = this.props;
+
+        if (!channel) {
+            alert('Channel name is required');
+            return;
+        }
+
+        const url = editingId ? `/api/output-configs/${editingId}` : '/api/output-configs';
+        const method = editingId ? 'PUT' : 'POST';
+
+        try {
+            const res = await fetch(url, {
+                method,
+                headers: {
+                    'Content-Type': 'application/json',
+                    'Authorization': `Bearer ${user.token}`
+                },
+                body: JSON.stringify({
+                    channel,
+                    description,
+                    value_type,
+                    min_value: parseFloat(min_value),
+                    max_value: parseFloat(max_value),
+                    device: device || null,
+                    device_channel: device_channel || null
+                })
+            });
+
+            if (res.ok) {
+                this.setState({ open: false });
+                this.loadConfigs();
+            } else {
+                const err = await res.json();
+                alert('Failed: ' + err.error);
+            }
+        } catch (err) {
+            alert('Failed: ' + err.message);
+        }
+    };
+
+    handleDelete = async (id, e) => {
+        e.stopPropagation();
+        if (!window.confirm('Delete this output config?')) return;
+
+        const { user } = this.props;
+        try {
+            await fetch(`/api/output-configs/${id}`, {
+                method: 'DELETE',
+                headers: { 'Authorization': `Bearer ${user.token}` }
+            });
+            this.loadConfigs();
+        } catch (err) {
+            alert('Failed to delete: ' + err.message);
+        }
+    };
+
+    moveConfig = async (idx, dir) => {
+        const newConfigs = [...this.state.configs];
+        const target = idx + dir;
+        if (target < 0 || target >= newConfigs.length) return;
+
+        [newConfigs[idx], newConfigs[target]] = [newConfigs[target], newConfigs[idx]];
+        this.setState({ configs: newConfigs });
+
+        const order = newConfigs.map((c, i) => ({ id: c.id, position: i }));
+        const { user } = this.props;
+
+        try {
+            await fetch('/api/output-configs/reorder', {
+                method: 'POST',
+                headers: {
+                    'Content-Type': 'application/json',
+                    'Authorization': `Bearer ${user.token}`
+                },
+                body: JSON.stringify({ order })
+            });
+        } catch (err) {
+            console.error('Failed to save order', err);
+        }
+    };
+
+    render() {
+        const { configs, loading, error, open, editingId, channel, description, value_type, min_value, max_value, device, device_channel } = this.state;
+        const isAdmin = this.isAdmin();
+
+        if (loading) return <Container sx={{ mt: 4 }}><Typography>Loading...</Typography></Container>;
+        if (error) return <Container sx={{ mt: 4 }}><Typography color="error">{error}</Typography></Container>;
+
+        return (
+            <Container maxWidth="lg" sx={{ mt: 4 }}>
+                <Paper sx={{ p: 2, mb: 4, display: 'flex', alignItems: 'center', justifyContent: 'space-between' }}>
+                    <Typography variant="h5">
+                        <SettingsInputComponentIcon sx={{ mr: 1, verticalAlign: 'middle' }} />
+                        Output Configuration
+                    </Typography>
+                    {isAdmin && (
+                        <Button variant="contained" startIcon={<AddIcon />} onClick={this.handleOpenCreate}>
+                            Add Output
+                        </Button>
+                    )}
+                </Paper>
+
+                <Paper sx={{ p: 2 }}>
+                    <Typography variant="h6" gutterBottom>Output Channels</Typography>
+                    <List>
+                        {configs.map((config, idx) => (
+                            <ListItem
+                                key={config.id}
+                                sx={{
+                                    borderRadius: 1,
+                                    mb: 1,
+                                    border: '1px solid #504945',
+                                    bgcolor: config.device ? 'rgba(131, 165, 152, 0.1)' : 'transparent'
+                                }}
+                            >
+                                <ListItemText
+                                    primary={
+                                        <Box sx={{ display: 'flex', alignItems: 'center', gap: 1 }}>
+                                            <Typography variant="subtitle1" sx={{ fontWeight: 'bold' }}>
+                                                {config.channel}
+                                            </Typography>
+                                            <Chip
+                                                size="small"
+                                                label={config.value_type}
+                                                color={config.value_type === 'boolean' ? 'default' : 'info'}
+                                            />
+                                            {config.device ? (
+                                                <Chip
+                                                    size="small"
+                                                    icon={<LinkIcon />}
+                                                    label={`${config.device}:${config.device_channel}`}
+                                                    color="success"
+                                                    variant="outlined"
+                                                />
+                                            ) : (
+                                                <Chip
+                                                    size="small"
+                                                    icon={<LinkOffIcon />}
+                                                    label="unbound"
+                                                    color="warning"
+                                                    variant="outlined"
+                                                />
+                                            )}
+                                        </Box>
+                                    }
+                                    secondary={
+                                        <Box>
+                                            <Typography variant="body2" color="text.secondary">
+                                                {config.description || 'No description'}
+                                            </Typography>
+                                            {config.value_type === 'number' && (
+                                                <Typography variant="body2" color="text.secondary">
+                                                    Range: {config.min_value} - {config.max_value}
+                                                </Typography>
+                                            )}
+                                        </Box>
+                                    }
+                                />
+                                {isAdmin && (
+                                    <Box sx={{ display: 'flex', alignItems: 'center' }}>
+                                        <IconButton size="small" onClick={() => this.moveConfig(idx, -1)} disabled={idx === 0}>
+                                            <ArrowUpwardIcon />
+                                        </IconButton>
+                                        <IconButton size="small" onClick={() => this.moveConfig(idx, 1)} disabled={idx === configs.length - 1}>
+                                            <ArrowDownwardIcon />
+                                        </IconButton>
+                                        <IconButton onClick={(e) => this.handleOpenEdit(config, e)}>
+                                            <EditIcon />
+                                        </IconButton>
+                                        <IconButton color="error" onClick={(e) => this.handleDelete(config.id, e)}>
+                                            <DeleteIcon />
+                                        </IconButton>
+                                    </Box>
+                                )}
+                            </ListItem>
+                        ))}
+                        {configs.length === 0 && (
+                            <Typography color="text.secondary" sx={{ p: 2 }}>
+                                No output channels defined. {isAdmin ? 'Click "Add Output" to create one.' : ''}
+                            </Typography>
+                        )}
+                    </List>
+                </Paper>
+
+                {/* Edit/Create Dialog */}
+                <Dialog open={open} onClose={() => this.setState({ open: false })} maxWidth="sm" fullWidth>
+                    <DialogTitle>{editingId ? 'Edit Output Config' : 'Add Output Config'}</DialogTitle>
+                    <DialogContent>
+                        <Box sx={{ display: 'flex', flexDirection: 'column', gap: 2, mt: 1 }}>
+                            <TextField
+                                label="Channel Name"
+                                value={channel}
+                                onChange={e => this.setState({ channel: e.target.value })}
+                                fullWidth
+                                placeholder="e.g., CircFanLevel"
+                            />
+                            <TextField
+                                label="Description"
+                                value={description}
+                                onChange={e => this.setState({ description: e.target.value })}
+                                fullWidth
+                                placeholder="e.g., Circulation Fan Level"
+                            />
+                            <FormControl fullWidth>
+                                <InputLabel>Value Type</InputLabel>
+                                <Select
+                                    value={value_type}
+                                    label="Value Type"
+                                    onChange={e => {
+                                        const newType = e.target.value;
+                                        // Auto-select compatible device: number->ac, boolean->tapo
+                                        const newDevice = device ? (newType === 'number' ? 'ac' : 'tapo') : '';
+                                        this.setState({
+                                            value_type: newType,
+                                            min_value: 0,
+                                            max_value: newType === 'boolean' ? 1 : 10,
+                                            device: newDevice
+                                        });
+                                    }}
+                                >
+                                    <MenuItem value="boolean">Boolean (on/off)</MenuItem>
+                                    <MenuItem value="number">Number (0-10 range)</MenuItem>
+                                </Select>
+                            </FormControl>
+                            {value_type === 'number' && (
+                                <Box sx={{ display: 'flex', gap: 2 }}>
+                                    <TextField
+                                        label="Min Value"
+                                        type="number"
+                                        value={min_value}
+                                        onChange={e => this.setState({ min_value: e.target.value })}
+                                        sx={{ flex: 1 }}
+                                    />
+                                    <TextField
+                                        label="Max Value"
+                                        type="number"
+                                        value={max_value}
+                                        onChange={e => this.setState({ max_value: e.target.value })}
+                                        sx={{ flex: 1 }}
+                                    />
+                                </Box>
+                            )}
+
+                            <Typography variant="subtitle2" sx={{ mt: 2 }}>Device Binding (Optional)</Typography>
+                            <Box sx={{ display: 'flex', gap: 2 }}>
+                                <FormControl sx={{ flex: 1 }}>
+                                    <InputLabel>Device</InputLabel>
+                                    <Select
+                                        value={device}
+                                        label="Device"
+                                        onChange={e => this.setState({ device: e.target.value })}
+                                    >
+                                        <MenuItem value=""><em>Not bound</em></MenuItem>
+                                        {value_type === 'boolean' && <MenuItem value="tapo">tapo (Switch)</MenuItem>}
+                                        {value_type === 'number' && <MenuItem value="ac">ac (Level)</MenuItem>}
+                                    </Select>
+                                </FormControl>
+                                <TextField
+                                    label="Device Channel"
+                                    value={device_channel}
+                                    onChange={e => this.setState({ device_channel: e.target.value })}
+                                    sx={{ flex: 1 }}
+                                    placeholder={value_type === 'number' ? 'e.g., tent:fan' : 'e.g., r0, c'}
+                                    disabled={!device}
+                                />
+                            </Box>
+                            {device && (
+                                <Typography variant="caption" color="text.secondary">
+                                    Binding type: {device === 'ac' ? 'Level (0-10)' : 'Switch (on/off)'}
+                                </Typography>
+                            )}
+                        </Box>
+                    </DialogContent>
+                    <DialogActions>
+                        <Button onClick={() => this.setState({ open: false })}>Cancel</Button>
+                        <Button variant="contained" onClick={this.handleSave}>Save</Button>
+                    </DialogActions>
+                </Dialog>
+            </Container>
+        );
+    }
+}
+
+export default OutputConfigEditor;

uiserver/webpack.config.js

@@ -31,6 +31,22 @@ try {
         )
     `);
 
+    // Create output_configs table (unified channels + bindings)
+    // Note: binding_type derived from device (ac=level, tapo=switch)
+    db.exec(`
+        CREATE TABLE IF NOT EXISTS output_configs (
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            channel TEXT UNIQUE NOT NULL,
+            description TEXT,
+            value_type TEXT NOT NULL,
+            min_value REAL DEFAULT 0,
+            max_value REAL DEFAULT 1,
+            device TEXT,
+            device_channel TEXT,
+            position INTEGER DEFAULT 0
+        )
+    `);
+
     // Helper to insert changelog entry
     global.insertChangelog = (user, text) => {
         try {
@@ -47,15 +63,36 @@ try {
     console.error(`[UI Server] Failed to connect to database at ${dbPath}:`, err.message);
 }
 
-// Output bindings: map virtual outputs to physical devices
-// Format: outputChannel -> { device, channel, type }
-const OUTPUT_BINDINGS = {
-    'BigDehumid': { device: 'tapo', channel: 'r0', type: 'switch' },
-    'CO2Valve': { device: 'tapo', channel: 'c', type: 'switch' },
-    'TentExhaust': { device: 'tapo', channel: 'fantent', type: 'switch' },
-    'CircFanLevel': { device: 'ac', channel: 'tent:fan', type: 'level' },
-    'RoomExhaust': { device: 'ac', channel: 'wall-fan', type: 'level' },
+// Load output channels from database (replaces hardcoded OUTPUT_CHANNELS)
+function getOutputChannels() {
+    if (!db) return [];
+    const rows = db.prepare('SELECT * FROM output_configs ORDER BY position ASC').all();
+    return rows.map(r => ({
+        channel: r.channel,
+        type: r.value_type,
+        min: r.min_value,
+        max: r.max_value,
+        description: r.description
+    }));
+}
+
+// Load output bindings from database (replaces hardcoded OUTPUT_BINDINGS)
+// Binding type derived: ac=level, tapo=switch
+function getOutputBindings() {
+    if (!db) return {};
+    const rows = db.prepare('SELECT * FROM output_configs WHERE device IS NOT NULL').all();
+    const bindings = {};
+    for (const r of rows) {
+        if (r.device && r.device_channel) {
+            bindings[r.channel] = {
+                device: r.device,
+                channel: r.device_channel,
+                type: r.device === 'ac' ? 'level' : 'switch'
             };
+        }
+    }
+    return bindings;
+}
 
 // =============================================
 // WebSocket Server for Agents (port 3962)
@@ -315,6 +352,7 @@ function syncOutputStates() {
     if (!db) return;
 
     try {
+        const bindings = getOutputBindings();
         // Get current output values
         const stmt = db.prepare(`
             SELECT channel, value FROM output_events 
@@ -325,7 +363,7 @@ function syncOutputStates() {
         for (const row of rows) {
             // Only sync non-zero values
             if (row.value > 0) {
-                const binding = OUTPUT_BINDINGS[row.channel];
+                const binding = bindings[row.channel];
                 if (binding) {
                     let commandValue = row.value;
                     if (binding.type === 'switch') {
@@ -356,15 +394,6 @@ setInterval(syncOutputStates, 60000);
 // RULE ENGINE (Global Scope)
 // =============================================
 
-// Virtual output channel definitions
-const OUTPUT_CHANNELS = [
-    { channel: 'CircFanLevel', type: 'number', min: 0, max: 10, description: 'Circulation Fan Level' },
-    { channel: 'CO2Valve', type: 'boolean', min: 0, max: 1, description: 'CO2 Valve' },
-    { channel: 'BigDehumid', type: 'boolean', min: 0, max: 1, description: 'Big Dehumidifier' },
-    { channel: 'TentExhaust', type: 'boolean', min: 0, max: 1, description: 'Tent Exhaust Fan' },
-    { channel: 'RoomExhaust', type: 'number', min: 0, max: 10, description: 'Room Exhaust Fan' },
-];
-
 // Get current sensor value
 function getSensorValue(channel) {
     // channel format: "device:channel" e.g. "ac:controller:co2"
@@ -420,7 +449,8 @@ function writeOutputValue(channel, value) {
         console.log(`[RuleRunner] Output changed: ${channel} = ${value}`);
 
         // Send command to bound physical device
-        const binding = OUTPUT_BINDINGS[channel];
+        const bindings = getOutputBindings();
+        const binding = bindings[channel];
         if (binding) {
             let commandValue = value;
             if (binding.type === 'switch') {
@@ -533,7 +563,8 @@ function runRules() {
 
         // Default all outputs to OFF (0) - if no rule sets them, they stay off
         const desiredOutputs = {};
-        for (const ch of OUTPUT_CHANNELS) {
+        const outputChannels = getOutputChannels();
+        for (const ch of outputChannels) {
             desiredOutputs[ch.channel] = 0;
         }
 
@@ -651,8 +682,8 @@ module.exports = {
                 bcrypt,
                 jwt,
                 JWT_SECRET,
-                OUTPUT_CHANNELS,
-                OUTPUT_BINDINGS,
+                getOutputChannels,
+                getOutputBindings,
                 runRules,
                 activeRuleIds
             });