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{ pkgs, ... }:
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let
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# Horizontal wallpapers (3840x2160) for HDMI-A-1 and DP-1
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# Just add any image URL you want here
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horizontal = [
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"https://images.hdqwalls.com/download/black-red-square-rectangle-rq-3840x2160.jpg"
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"https://images.hdqwalls.com/download/metals-shapes-abstract-8k-8c-3840x2160.jpg"
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"https://images.hdqwalls.com/download/vertical-lines-colorful-abstract-5k-hu-3840x2160.jpg"
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"https://images.hdqwalls.com/download/cyberpunk-drive-neon-metropolis-if-3840x2160.jpg"
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"https://images.hdqwalls.com/download/horizon-zero-dawn-abstract-m2-3840x2160.jpg"
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"https://images.hdqwalls.com/download/pcb-circuit-board-abstract-x3-3840x2160.jpg"
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"https://images.hdqwalls.com/download/upcoming-stars-6h-3840x2160.jpg"
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"https://images.hdqwalls.com/download/abstract-colors-glitter-4k-8m-3840x2160.jpg"
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"https://images.hdqwalls.com/download/rainbow-spectrum-4k-h2-3840x2160.jpg"
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"https://images.hdqwalls.com/download/time-lapse-photography-tf-3840x2160.jpg"
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"https://images.hdqwalls.com/download/women-bokeh-rain-7q-3840x2160.jpg"
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"https://images.hdqwalls.com/download/fire-bokeh-5k-vm-3840x2160.jpg"
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"https://images.hdqwalls.com/download/train-track-ocean-beach-mountain-photography-5k-mh-3840x2160.jpg"
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"https://images.hdqwalls.com/download/bullet-train-motion-view-from-inside-ld-3840x2160.jpg"
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"https://images.hdqwalls.com/download/long-exposure-photo-of-a-highway-gf-3840x2160.jpg"
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"https://images.hdqwalls.com/download/hohenschwangau-castle-in-germany-5k-tb-3840x2160.jpg"
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"https://images.hdqwalls.com/download/girl-watching-glowing-metropolis-tg-3840x2160.jpg"
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"https://images.hdqwalls.com/download/cosmic-storm-over-alien-metropolis-dl-3840x2160.jpg"
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"https://images.hdqwalls.com/download/win-11-abstract-5k-7o-3840x2160.jpg"
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"https://images.hdqwalls.com/download/windows-11-5k-zz-3840x2160.jpg"
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"https://images.hdqwalls.com/download/localhost-lab-where-ideas-take-shape-ij-3840x2160.jpg"
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"https://images.hdqwalls.com/download/ipad-os18-purple-dark-jf-3840x2160.jpg"
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"https://images.hdqwalls.com/download/linux-nixos-7q-3840x2160.jpg"
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"https://images.hdqwalls.com/download/macbook-pro-m2-js-3840x2160.jpg"
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"https://images.hdqwalls.com/download/0101-dw-3840x2160.jpg"
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"https://images.hdqwalls.com/download/apple-studio-display-wwdc-qg-3840x2160.jpg"
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"https://images.hdqwalls.com/download/starfield-i-mac-ie-3840x2160.jpg"
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];
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# Vertical wallpapers (2160x3840) for DP-2
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# Same images in vertical resolution
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vertical = [
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"https://images.hdqwalls.com/download/black-red-square-rectangle-rq-2160x3840.jpg"
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"https://images.hdqwalls.com/download/metals-shapes-abstract-8k-8c-2160x3840.jpg"
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"https://images.hdqwalls.com/download/vertical-lines-colorful-abstract-5k-hu-2160x3840.jpg"
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"https://images.hdqwalls.com/download/cyberpunk-drive-neon-metropolis-if-2160x3840.jpg"
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"https://images.hdqwalls.com/download/horizon-zero-dawn-abstract-m2-2160x3840.jpg"
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"https://images.hdqwalls.com/download/pcb-circuit-board-abstract-x3-2160x3840.jpg"
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"https://images.hdqwalls.com/download/upcoming-stars-6h-2160x3840.jpg"
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"https://images.hdqwalls.com/download/abstract-colors-glitter-4k-8m-2160x3840.jpg"
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"https://images.hdqwalls.com/download/rainbow-spectrum-4k-h2-2160x3840.jpg"
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"https://images.hdqwalls.com/download/time-lapse-photography-tf-2160x3840.jpg"
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"https://images.hdqwalls.com/download/women-bokeh-rain-7q-2160x3840.jpg"
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"https://images.hdqwalls.com/download/fire-bokeh-5k-vm-2160x3840.jpg"
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"https://images.hdqwalls.com/download/train-track-ocean-beach-mountain-photography-5k-mh-2160x3840.jpg"
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"https://images.hdqwalls.com/download/bullet-train-motion-view-from-inside-ld-2160x3840.jpg"
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"https://images.hdqwalls.com/download/long-exposure-photo-of-a-highway-gf-2160x3840.jpg"
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"https://images.hdqwalls.com/download/hohenschwangau-castle-in-germany-5k-tb-2160x3840.jpg"
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"https://images.hdqwalls.com/download/girl-watching-glowing-metropolis-tg-2160x3840.jpg"
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"https://images.hdqwalls.com/download/cosmic-storm-over-alien-metropolis-dl-2160x3840.jpg"
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"https://images.hdqwalls.com/download/win-11-abstract-5k-7o-2160x3840.jpg"
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"https://images.hdqwalls.com/download/windows-11-5k-zz-2160x3840.jpg"
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"https://images.hdqwalls.com/download/localhost-lab-where-ideas-take-shape-ij-2160x3840.jpg"
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"https://images.hdqwalls.com/download/ipad-os18-purple-dark-jf-2160x3840.jpg"
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"https://images.hdqwalls.com/download/linux-nixos-7q-2160x3840.jpg"
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"https://images.hdqwalls.com/download/macbook-pro-m2-js-2160x3840.jpg"
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"https://images.hdqwalls.com/download/0101-dw-2160x3840.jpg"
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"https://images.hdqwalls.com/download/apple-studio-display-wwdc-qg-2160x3840.jpg"
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"https://images.hdqwalls.com/download/starfield-i-mac-ie-2160x3840.jpg"
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];
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# Create wallpaper rotation script
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rotateScript = pkgs.writeShellScript "hyprpaper-rotate" ''
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set -euo pipefail
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# Check if hyprpaper is running
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if ! pgrep -x hyprpaper > /dev/null; then
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echo "Error: hyprpaper is not running"
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echo "Start it with: hyprpaper &"
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exit 1
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fi
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CACHE_DIR="$HOME/.cache/wallpapers"
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mkdir -p "$CACHE_DIR"
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# Arrays of wallpaper URLs
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HORIZONTAL=(${builtins.concatStringsSep " " (map (url: ''"${url}"'') horizontal)})
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VERTICAL=(${builtins.concatStringsSep " " (map (url: ''"${url}"'') vertical)})
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# Function to download wallpaper if not cached
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get_wallpaper() {
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local url="$1"
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local filename=$(basename "$url")
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local filepath="$CACHE_DIR/$filename"
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if [ ! -f "$filepath" ]; then
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echo "Downloading $filename..." >&2
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${pkgs.curl}/bin/curl -sSL -o "$filepath" "$url" || {
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echo "Failed to download $url" >&2
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return 1
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}
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fi
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echo "$filepath"
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}
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# Function to get random element from array
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random_choice() {
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local arr=("$@")
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local size=''${#arr[@]}
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local idx=$((RANDOM % size))
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echo "''${arr[$idx]}"
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}
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# Get list of connected monitors and their orientations
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readarray -t MONITORS < <(${pkgs.hyprland}/bin/hyprctl monitors -j | \
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${pkgs.jq}/bin/jq -r '.[] | "\(.name)|\(.width)|\(.height)|\(.transform)"')
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# Apply wallpapers to each monitor
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for monitor_info in "''${MONITORS[@]}"; do
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IFS='|' read -r name width height transform <<< "$monitor_info"
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# Determine if monitor is vertical (considering transform)
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# transform 1 or 3 means 90/270 degree rotation
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if [[ "$transform" == "1" || "$transform" == "3" ]]; then
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# Transform swaps width/height, so check original dimensions
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if [ "$width" -lt "$height" ]; then
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# After transform, it's horizontal
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wallpaper_url=$(random_choice "''${HORIZONTAL[@]}")
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else
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# After transform, it's vertical
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wallpaper_url=$(random_choice "''${VERTICAL[@]}")
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fi
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else
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# No rotation or 180 degree rotation
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if [ "$width" -lt "$height" ]; then
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wallpaper_url=$(random_choice "''${VERTICAL[@]}")
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else
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wallpaper_url=$(random_choice "''${HORIZONTAL[@]}")
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fi
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fi
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# Download and apply wallpaper
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wallpaper_path=$(get_wallpaper "$wallpaper_url")
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if [ -n "$wallpaper_path" ]; then
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echo "Setting $name to $wallpaper_path" >&2
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${pkgs.hyprland}/bin/hyprctl hyprpaper wallpaper "$name,$wallpaper_path,cover"
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fi
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done
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'';
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in
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{
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# Export for use in monitors.nix
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home.file.".local/bin/hyprpaper-rotate".source = rotateScript;
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# Systemd service and timer for rotation
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systemd.user.services.hyprpaper-rotate = {
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Unit = {
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Description = "Rotate Hyprland wallpapers";
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After = [ "graphical-session.target" ];
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};
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Service = {
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Type = "oneshot";
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ExecStart = "${rotateScript}";
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};
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};
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systemd.user.timers.hyprpaper-rotate = {
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Unit = {
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Description = "Rotate Hyprland wallpapers every 12 hours";
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};
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Timer = {
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OnUnitActiveSec = "12h";
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Persistent = true;
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};
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Install = {
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WantedBy = [ "timers.target" ];
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};
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};
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}
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Miguel Palhas