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{ pkgs }:
# Wrapper/script for i3-lock to use '~/Pictures/wallpaper.png' as the lock screen
pkgs.writeShellScriptBin "lock-screen" ''
#!/usr/bin/env sh
set -eu
WALL="\$\{1:-$HOME/Pictures/wallpaper.png}"
TMP="/tmp/lockscreen.png"
# Get current resolution (single-monitor friendly)
RES=$(xrandr | awk '/\*/ {print $1; exit}')
# Scale like feh --bg-fill
magick "$WALL" -resize "\$\{RES}^" -gravity center -extent "$RES" "$TMP"
i3lock -i "$TMP"
''
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