nevaforget
09371b5fd2
Address all findings from quality, performance, and security audits: - Filter greetd error descriptions consistently (security) - Re-enable power buttons after failed action (UX bug) - Narrow TOCTOU window in avatar loading via symlink_metadata (security) - Allow @ in usernames for LDAP compatibility - Eliminate unnecessary Vec allocation in passwd parsing - Remove dead i18n field, annotate retained-for-future struct fields - Fix if/if→if/else and noisy test output in power.rs Replace CPU blur (image crate + disk cache + async orchestration) with GPU blur via GskBlurNode — symmetric with moonlock and moonset. Removes ~15 transitive dependencies and ~200 lines of caching code.
Moongreet
A greetd greeter for Wayland, built with Rust + GTK4 + gtk4-layer-shell. Part of the Moonarch ecosystem.
Features
- greetd IPC — Communicates via
$GREETD_SOCK(length-prefixed JSON) - User list — Parsed from
/etc/passwd(UID 1000–65533) - Avatars — AccountsService icons,
~/.facefallback, default SVG with theme tinting - Sessions — Discovered from
/usr/share/wayland-sessions/and/usr/share/xsessions/ - Last user/session — Remembered in
/var/cache/moongreet/ - Power actions — Reboot / Shutdown via
loginctl - Layer Shell — Fullscreen via gtk4-layer-shell (TOP layer)
- Multi-monitor — Greeter on primary, wallpaper on all monitors
- i18n — German and English (auto-detected from system locale)
- Faillock warning — Warns after 2 failed attempts, locked message after 3
Requirements
- GTK 4
- gtk4-layer-shell (for Wayland fullscreen)
- greetd
Building
cargo build --release
Installation
# Install binary
sudo install -Dm755 target/release/moongreet /usr/bin/moongreet
# Install config
sudo mkdir -p /etc/moongreet
sudo cp config/moongreet.toml /etc/moongreet/moongreet.toml
System Setup
-
Edit
/etc/moongreet/moongreet.toml— set an absolute path for the wallpaper. -
Create cache directory:
sudo mkdir -p /var/cache/moongreet/last-session sudo chown greeter:greeter /var/cache/moongreet -
Configure greetd (
/etc/greetd/config.toml):[default_session] command = "niri -c /etc/greetd/niri-greeter.kdl" user = "greeter"
Development
# Run tests
cargo test
# Build release
cargo build --release
# Run locally (without greetd, needs LD_PRELOAD for layer-shell)
LD_PRELOAD=/usr/lib/libgtk4-layer-shell.so ./target/release/moongreet
License
MIT