BEDM — Blue Environment Display Manager

BEDM is a production display manager for Linux, built with:

• Rust daemon (bedm) — manages PAM auth, sessions, VT switching
• Tauri + React greeter (bedm-greeter) — the login UI
• Unix socket IPC — secure daemon↔greeter communication

BEDM is a rival to SDDM, GDM, and LightDM, designed for the Blue Environment Wayland desktop but works with any session.

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Features

• 🔐 Real PAM authentication via /etc/shadow + crypt(3)
• 🖼️ Aurora glassmorphism UI — animated background, user avatars
• 🖥️ Session management — Wayland & X11 sessions from .desktop files
• 👥 Multi-user — lists system users (UID ≥ 1000), user avatars from ~/.face
• ⚡ Autologin support with configurable delay
• 🔌 Power menu — shutdown, reboot, suspend, hibernate with countdown
• 🔒 Brute-force protection — 5 attempt limit per session
• 📋 systemd integration — replaces display-manager.service
• 🎨 Wallpaper support — reads /etc/bedm/wallpaper.png

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Architecture

┌─────────────────────────────────────────────────┐
│  TTY1 / VT1                                      │
│                                                   │
│  ┌─────────────────────────────────────────────┐ │
│  │  bedm (daemon, root)                         │ │
│  │    PAM authentication                        │ │
│  │    Session launching (drop privs to user)    │ │
│  │    VT management                             │ │
│  │    IPC: /run/bedm/bedm.sock                 │ │
│  └───────────────┬─────────────────────────────┘ │
│                  │ Unix socket (JSON)             │
│  ┌───────────────▼─────────────────────────────┐ │
│  │  bedm-greeter (Tauri, runs as _bedm user)   │ │
│  │    React UI (TypeScript + Tailwind)          │ │
│  │    Clock, user list, password input          │ │
│  │    Session picker, power menu                │ │
│  └─────────────────────────────────────────────┘ │
└─────────────────────────────────────────────────┘

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Quick Install

# Clone / extract BEDM
cd BEDM

# Build and install (requires Rust + Node.js)
sudo bash install.sh

# With autologin:
sudo bash install.sh --autologin myusername

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Manual Build

# Install build dependencies (Debian/Ubuntu)
apt install cargo nodejs npm libpam-dev

# Build
make build

# Install (as root)
sudo make install

# Enable
sudo systemctl enable --now bedm

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Configuration

Edit /etc/bedm/bedm.toml:

[general]
greeter_path = "/usr/bin/bedm-greeter"
vt = 1
theme = "blue"
show_user_list = true
allow_root = false
minimum_uid = 1000

# Autologin (optional)
# autologin_user    = "username"
# autologin_session = "blue-environment"

[power]
shutdown  = "shutdown -h now"
reboot    = "reboot"
suspend   = "systemctl suspend"
hibernate = "systemctl hibernate"

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User Avatars

BEDM reads user avatars from (in priority order):

1. ~/.face
2. ~/.face.icon
3. ~/.config/bedm/avatar.png
4. /var/lib/AccountsService/icons/<username>

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Logs

# View BEDM logs
journalctl -u bedm -f

# Or from file
tail -f /var/log/bedm/bedm.log

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Comparison

Feature	BEDM	SDDM	GDM	LightDM
Wayland native	✅	✅	✅	⚠️
X11 support	✅	✅	✅	✅
PAM auth	✅	✅	✅	✅
Autologin	✅	✅	✅	✅
Custom themes	✅	✅	❌	✅
User avatars	✅	✅	✅	✅
Blue Environment	✅	❌	❌	❌
Aurora UI	✅	❌	❌	❌
Glassmorphism	✅	❌	❌	❌
Rust backend	✅	✅	❌	❌
React frontend	✅	❌	❌	❌

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License

GPL-3.0 — © 2026 HackerOS Team