# SciGreet

Minimal `greetd` greeter using `quickshell` + `niri`. Lockscreen-style ring indicator UI with blurred wallpaper.

## Preview (Development)

Test the UI without `greetd`:

```bash
cd ~/.config/quickshell/scigreet
qs -p test.qml
```

Hover over the top right corner to find the force quit option.

## Setup on Arch Linux

### 1. Install Dependencies

```bash
sudo pacman -S greetd niri quickshell
```

Make sure `niri` and `quickshell` (or `qs`) are in PATH.

### 2. Create Greeter User

Skip if `greetd` already created one:

```bash
sudo groupadd -r greeter 2>/dev/null || true
sudo useradd -r -g greeter -d /var/lib/greeter -s /bin/bash -c "Greeter" greeter 2>/dev/null || true
sudo mkdir -p /var/lib/greeter
sudo chown greeter:greeter /var/lib/greeter
```

### 3. Deploy `scigreet`

```bash
sudo mkdir -p /etc/xdg/quickshell/scigreet
cd ~/.config/quickshell/
sudo cp -r scigreet/* /etc/xdg/quickshell/scigreet/
sudo chown -R greeter:greeter /etc/xdg/quickshell/scigreet
```

### 4. Create Greeter Launch Scripts

We separate the QML runner from the Niri launcher to avoid parsing errors with console escape codes in the Niri config.

```bash
# 2. The Niri Launch Script
sudo tee /usr/local/bin/scigreet <<'EOF'
#!/bin/bash
set -e

export XDG_SESSION_TYPE=wayland
export QT_QPA_PLATFORM=wayland
export QT_WAYLAND_DISABLE_WINDOWDECORATION=1
export EGL_PLATFORM=gbm
export RUST_LOG=error
export NIRI_LOG=error

# Suppress kernel messages on greeter console
dmesg -n 1 2>/dev/null || true

TEMP_CONFIG=$(mktemp)
cat > "$TEMP_CONFIG" <<NIRI_EOF
hotkey-overlay {
    skip-at-startup
}

debug {
    keep-max-bpc-unchanged
}

gestures {
    hot-corners {
        off
    }
}

input {
    touchpad {
        tap
    }
}

layout {
    background-color "#000000"
}

spawn-at-startup "sh" "-c" "qs -p /etc/xdg/quickshell/scigreet/shell.qml; niri msg action quit --skip-confirmation"
NIRI_EOF

exec niri -c "$TEMP_CONFIG"
EOF

sudo chmod +x /usr/local/bin/scigreet-session /usr/local/bin/scigreet
```

### 5. Configure greetd

```bash
sudo tee /etc/greetd/config.toml <<'EOF'
[terminal]
vt = "next"

[default_session]
user = "greeter"
command = "/usr/local/bin/scigreet"
EOF
```


### 6. Disable GDM and Enable greetd

```bash
# Disable GDM
sudo systemctl disable gdm

# Enable greetd
sudo systemctl enable greetd
```

### 7. Verify Before Rebooting

```bash
# Check greetd config
cat /etc/greetd/config.toml

# Check scigreet files exist
ls -la /etc/xdg/quickshell/scigreet/

# Check launch script
cat /usr/local/bin/scigreet

# Check niri and quickshell are available
which niri qs
```

### 8. Reboot

```bash
sudo reboot
```

## Upgrading

After modifying scigreet source files, re-deploy:

```bash
cd ~/.config/quickshell/
sudo cp -r scigreet/* /etc/xdg/quickshell/scigreet/
sudo chown -R greeter:greeter /etc/xdg/quickshell/scigreet
```

then `reboot`.

## Options

Hover around the bottom corners to see options for login.

## Keyring

Edit `/etc/pam.d/greetd` and make it look like this:

```
#%PAM-1.0

auth       required     pam_securetty.so
auth       requisite    pam_nologin.so
auth       include      system-local-login
auth       optional     pam_gnome_keyring.so
account    include      system-local-login
session    include      system-local-login
session    optional     pam_gnome_keyring.so auto_start
```

## Niri Warning
I have manually verified that adding >/dev/null 2>&1 to the following commands within the niri-session script completely silences the deprecated warnings during both session startup and exit:
 ```diff
 # 1. In the systemctl environment import:
- systemctl --user import-environment
+ systemctl --user import-environment >/dev/null 2>&1

 #2. In the DBus activation block:
  if hash dbus-update-activation-environment 2>/dev/null; then
-     dbus-update-activation-environment --all
+     dbus-update-activation-environment --all >/dev/null 2>&1
  fi

 #3. In the session cleanup/unset block:
- systemctl --user unset-environment WAYLAND_DISPLAY DISPLAY XDG_SESSION_TYPE XDG_CURRENT_DESKTOP NIRI_SOCKET
+ systemctl --user unset-environment WAYLAND_DISPLAY DISPLAY XDG_SESSION_TYPE XDG_CURRENT_DESKTOP NIRI_SOCKET >/dev/null 2>&1
```

## Console Messages and Blinking Cursor
Add the following parameters to disable logs:
```
quiet loglevel=3 systemd.show_status=false rd.udev.log_level=3
```
And `vt.global_cursor_default=0` to disable the blinking cursor.

The **NUCLEAR SOLUTION** for this was adding `fbcon=map:1` `/etc/kernel/cmdline` and disable the frame-buffer console entirely.

After the **NUCLEAR SOLUTION** is used, I just installed `kmscon` using `sudo pacman -S kmscon` then rebooted the system and now I have a debugging console on `TTY2` if my system breaks.

## Fix GNOME Settings Not Launching
Create a file at `~/.config/autostart/env.desktop`:

```
[Desktop Entry]
Type=Application
Name=Fix GNOME ENV
Exec=dbus-update-activation-environment --systemd XDG_CURRENT_DESKTOP=GNOME
NoDisplay=true
X-GNOME-Autostart-Phase=Initialization
```