it doesnt work

scripts/Dockerfile

@@ -0,0 +1,4 @@
+FROM ubuntu:jammy
+ADD ./prepare-container.sh /tmp/prepare-container.sh
+RUN /tmp/prepare-container.sh
+WORKDIR /work

scripts/build-appimage.sh

@@ -0,0 +1,23 @@
+#!/usr/bin/bash
+
+set -e
+
+# Check if inside of docker container
+if [ ! -f /.dockerenv ]; then
+  # Check if docker is available
+  if ! command -v docker >/dev/null 2>&1; then
+    echo "Error: Docker is not available."
+    exit 1
+  fi
+  docker run --rm -v "$PWD":/work discord-screenaudio-buildenv bash /work/scripts/build-appimage.sh
+  exit 0
+fi
+
+tmpdir="$(mktemp -d)"
+builddir="$tmpdir/build"
+appdir="$tmpdir/AppDir"
+cmake -B "$builddir" -S "$PWD"
+cmake --build "$builddir" --config Release
+DESTDIR="$appdir" cmake --install "$builddir" --prefix "/usr"
+
+linuxdeployqt "$appdir/usr/share/applications/discord-screenaudio.desktop" -appimage -extra-plugins=iconengines,platformthemes/libqgtk3.so

scripts/prepare-container.sh

@@ -0,0 +1,33 @@
+#!/bin/sh
+
+set -e
+cd "$(dirname "$0")"
+
+if [ ! -f /.dockerenv ]; then
+  # Check if docker is available
+  if ! command -v docker >/dev/null 2>&1; then
+    echo "Error: Docker is not available."
+    exit 1
+  fi
+  docker build -t discord-screenaudio-buildenv .
+  exit 0
+fi
+
+echo "-> Installing dependencies with apt..."
+export DEBIAN_FRONTEND=noninteractive
+apt-get update
+apt-get install -y curl build-essential qtbase5-dev qtwebengine5-dev qt5-qmake cmake git libpipewire-0.3-dev
+
+echo "-> Installing linuxdeployqt..."
+tmpdir="$(mktemp -d)"
+curl -Lo "$tmpdir/linuxdeployqt.AppImage" "https://github.com/probonopd/linuxdeployqt/releases/download/continuous/linuxdeployqt-continuous-x86_64.AppImage"
+chmod +x "$tmpdir/linuxdeployqt.AppImage"
+sed '0,/AI\x02/{s|AI\x02|\x00\x00\x00|}' -i -i "$tmpdir/linuxdeployqt.AppImage"
+(cd "$tmpdir" && ./linuxdeployqt.AppImage --appimage-extract)
+mv -v "$tmpdir/squashfs-root" "/opt/linuxdeployqt"
+ln -sv "/opt/linuxdeployqt/AppRun" "/usr/local/bin/linuxdeployqt"
+
+echo "-> Cleaning up..."
+rm -rf "$tmpdir"
+rm /tmp/prepare-container.sh
+apt-get clean