configuration

Configuration

Overview

Muximux is configured via a single YAML file. By default, this is config.yaml in the working directory. You can specify a different path at startup:

muximux --config /path/to/config.yaml

Complete Configuration Reference

# ─── Server ─────────────────────────────────────
server:
  listen: ":8080"              # Listen address (default: ":8080")
  title: "Muximux"             # Page title shown in browser tab

  # Optional: TLS / HTTPS
  tls:
    domain: ""                 # Auto-HTTPS domain (requires email)
    email: ""                  # Let's Encrypt registration email
    cert: ""                   # Path to TLS certificate PEM
    key: ""                    # Path to TLS private key PEM

  # Optional: Serve additional sites via Caddy
  gateway: ""                  # Path to Caddyfile

# ─── Authentication ─────────────────────────────
auth:
  method: none                 # none, builtin, forward_auth, oidc

  session_max_age: 24h         # Session duration (default: 24h)
  secure_cookies: false        # Require HTTPS for session cookies
  api_key: ""                  # Optional API key for X-Api-Key auth

  # Builtin auth users
  users:
    - username: ""
      password_hash: ""        # bcrypt hash (see Authentication page)
      role: admin              # admin or user
      email: ""                # Optional
      display_name: ""         # Optional

  # Forward auth settings
  trusted_proxies: []          # CIDR ranges, e.g., ["10.0.0.0/8"]
  headers:
    user: Remote-User
    email: Remote-Email
    groups: Remote-Groups
    name: Remote-Name          # Note: key is "name" not "display_name"

  # OIDC settings
  oidc:
    enabled: false
    issuer_url: ""
    client_id: ""
    client_secret: ""          # Supports ${ENV_VAR} syntax
    redirect_url: ""           # Must match provider callback URL
    scopes: [openid, profile, email]
    username_claim: preferred_username
    email_claim: email
    groups_claim: groups
    display_name_claim: name
    admin_groups: []           # Groups that grant admin role

# ─── Navigation ─────────────────────────────────
navigation:
  position: top                # top, left, right, bottom, floating
  width: 220px                 # Sidebar width
  auto_hide: false
  auto_hide_delay: 3s
  show_on_hover: true
  show_labels: true
  show_logo: true
  show_app_colors: true
  show_icon_background: true
  show_splash_on_startup: false
  show_shadow: true

# ─── Icons ──────────────────────────────────────
icons:
  dashboard_icons:
    enabled: true
    mode: on_demand            # on_demand, prefetch, offline
    cache_dir: data/icons/dashboard
    cache_ttl: 7d

# ─── Health Monitoring ──────────────────────────
health:
  enabled: true
  interval: 30s
  timeout: 5s

# ─── Keyboard Shortcuts ────────────────────────
keybindings:
  bindings: {}                 # Custom overrides only; defaults managed client-side

# ─── Groups ─────────────────────────────────────
groups:
  - name: Media
    icon:
      type: lucide
      name: play
    color: "#e5a00d"
    order: 1
    expanded: true

# ─── Apps ───────────────────────────────────────
apps:
  - name: Plex
    url: http://plex:32400
    health_url: ""             # Optional custom health endpoint
    icon:
      type: dashboard
      name: plex
      variant: light
      color: ""
      background: ""
    color: "#e5a00d"
    group: Media
    order: 1
    enabled: true
    default: true
    open_mode: iframe          # iframe, new_tab, new_window, redirect
    proxy: false
    scale: 1.0
    disable_keyboard_shortcuts: false
    auth_bypass: []
    access:
      roles: []
      users: []

Command Line Options

muximux [flags]
  --config PATH    Path to config file (default: config.yaml, env: MUXIMUX_CONFIG)
  --listen ADDR    Override listen address (env: MUXIMUX_LISTEN)
  --version        Show version and exit

Precedence: CLI flag > environment variable > config file value > default.

Environment Variable Expansion

Use ${VARIABLE_NAME} in any string value to reference environment variables. This is useful for keeping secrets out of config files:

auth:
  oidc:
    client_secret: ${OIDC_CLIENT_SECRET}
  api_key: ${MUXIMUX_API_KEY}

apps:
  - name: Plex
    url: ${PLEX_URL}

If the referenced environment variable is not set, the value will be an empty string.

Direct Override Environment Variables

These override the corresponding config file values without needing ${VAR} syntax in config.yaml:

Variable	Description	Default
MUXIMUX_CONFIG	Path to config file	config.yaml
MUXIMUX_LISTEN	Listen address (e.g., :9090)	From config file

Validation Rules

Muximux validates the configuration on startup and will refuse to start if the configuration is invalid. The following rules are enforced:

• If tls.domain is set, tls.email is required (for Let's Encrypt registration).
• tls.cert and tls.key must both be set or both empty. You cannot provide only one.
• tls.domain and tls.cert are mutually exclusive. Use either auto-HTTPS or manual certificates, not both.
• If gateway is set, the referenced Caddyfile must exist on disk.

Live Configuration

Most settings can be changed through the Settings panel while Muximux is running. Changes are saved to config.yaml immediately and take effect without restarting.

The following settings require a restart to take effect:

• server.listen (listen address/port)
• server.tls.* (all TLS settings)
• server.gateway (Caddyfile path)
• auth.method (authentication method)

Everything else -- navigation, themes, apps, groups, icons, keybindings, health monitoring -- is applied immediately.

Config API

The configuration can also be read and updated via the API:

• GET /api/config -- Retrieve the current configuration (any authenticated user).
• PUT /api/config -- Update the full configuration (admin role required).

See the API Reference for details.