Bump sunshine to stable & include res script from lyzardbyte docs

Dockerfile.debian

@@ -453,7 +453,7 @@ RUN \
     echo
 
 # Install Sunshine
-COPY --from=lizardbyte/sunshine:1303def-debian-bookworm /sunshine.deb /usr/src/sunshine.deb
+COPY --from=lizardbyte/sunshine:v0.21.0-debian-bookworm /sunshine.deb /usr/src/sunshine.deb
 RUN \
     echo "**** Update apt database ****" \
         && apt-get update \

overlay/usr/bin/set-custom-res.sh

@@ -0,0 +1,35 @@
+#!/bin/bash
+###
+# File: set-custom-res.sh
+# Project: bin
+# Author: LyzardByte Community Docs
+###
+
+# Get params and set any defaults
+width=${1:-1920}
+height=${2:-1080}
+refresh_rate=${3:-60}
+
+# You may need to adjust the scaling differently so the UI/Text isn't too small / big
+scale=${4:-1}
+
+# Get the name of the active display
+display_output=$(xrandr | grep " connected" | awk '{print $1 }')
+
+# Get the modeline info from the 2nd row in the cvt output
+modeline=$(cvt ${width} ${height} ${refresh_rate} | awk 'FNR == 2')
+xrandr_mode_str=${modeline//Modeline \"*\" /}
+mode_alias="${width}x${height}"
+
+echo "xrandr setting new mode ${mode_alias} ${xrandr_mode_str}"
+xrandr --newmode ${mode_alias} ${xrandr_mode_str}
+xrandr --addmode ${display_output} ${mode_alias}
+
+# Reset Scaling
+xrandr --output ${display_output} --scale ${scale}
+
+# Apply new xrandr mode
+xrandr --output ${display_output} --primary --mode ${mode_alias} --pos 0x0 --rotate normal --scale ${scale}
+
+# Optionally reset your wallpaper
+# xwallpaper --zoom /path/to/wallpaper.png