diff --git a/Dockerfile b/Dockerfile
index ff8ee8d..dbef87b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,13 +1,10 @@
-FROM ubuntu:22.04
+FROM ubuntu:26.04
 ENV DEBIAN_FRONTEND=noninteractive
 
 # Install unzip first so we can extract the large static zips
 RUN apt-get update && apt-get install -y unzip && rm -rf /var/lib/apt/lists/*
 
-# Create user
-RUN useradd -m -s /bin/bash ubuntu
-
-# Copy and extract large static files first 
+# Copy and extract large static files first
 COPY nosteam.zip /home/ubuntu/
 COPY wine_user_folder.zip /home/ubuntu/
 RUN cd /home/ubuntu && unzip nosteam.zip && rm nosteam.zip && unzip wine_user_folder.zip && rm wine_user_folder.zip
@@ -20,21 +17,26 @@ RUN dpkg --add-architecture i386 && \
     gnupg2 \
     ca-certificates \
     && mkdir -pm755 /etc/apt/keyrings \
-    && wget -O /etc/apt/keyrings/winehq-archive.key https://dl.winehq.org/wine-builds/winehq.key \
-    && echo "deb [signed-by=/etc/apt/keyrings/winehq-archive.key] https://dl.winehq.org/wine-builds/ubuntu/ jammy main" > /etc/apt/sources.list.d/winehq.list \
+    && wget -O- https://dl.winehq.org/wine-builds/winehq.key | gpg --dearmor -o /etc/apt/keyrings/winehq-archive.key \
+    && echo "deb [signed-by=/etc/apt/keyrings/winehq-archive.key] https://dl.winehq.org/wine-builds/ubuntu/ resolute main" > /etc/apt/sources.list.d/winehq.list \
     && apt-get update \
     && apt-get install -y --install-recommends winehq-stable \
     && apt-get install -y \
     winetricks \
     weston \
     xwayland \
-    pulseaudio \
+    dbus-x11 \
+    pipewire \
+    pipewire-pulse \
+    pipewire-audio-client-libraries \
+    wireplumber \
     pulseaudio-utils \
     ffmpeg \
     xdotool \
     nodejs \
     npm \
     mesa-vulkan-drivers \
+    vulkan-tools \
     gstreamer1.0-tools \
     gstreamer1.0-plugins-base \
     gstreamer1.0-plugins-good \
@@ -42,6 +44,7 @@ RUN dpkg --add-architecture i386 && \
     gstreamer1.0-plugins-ugly \
     gstreamer1.0-libav \
     gstreamer1.0-nice \
+    gstreamer1.0-pipewire \
     gir1.2-gst-plugins-bad-1.0 \
     python3-gi \
     python3-gst-1.0 \
@@ -49,7 +52,7 @@ RUN dpkg --add-architecture i386 && \
     && rm -rf /var/lib/apt/lists/*
 
 # Environment variables
-ENV VK_ICD_FILENAMES="/usr/share/vulkan/icd.d/lvp_icd.x86_64.json"
+ENV VK_ICD_FILENAMES="/usr/share/vulkan/icd.d/lvp_icd.json"
 ENV XDG_RUNTIME_DIR=/tmp/weston-runtime
 ENV WAYLAND_DISPLAY=wayland-0
 ENV DISPLAY=:99
@@ -61,7 +64,7 @@ ENV MESA_SHADER_CACHE_MAX_SIZE=10G
 COPY start.sh /home/ubuntu/start.sh
 COPY streaming-agent/ /home/ubuntu/streaming-agent/
 RUN cd /home/ubuntu/streaming-agent && npm install
-RUN pip3 install -r /home/ubuntu/streaming-agent/requirements.txt
+RUN pip3 install --break-system-packages -r /home/ubuntu/streaming-agent/requirements.txt
 RUN chown -R ubuntu:ubuntu /home/ubuntu/
 RUN chmod +x /home/ubuntu/start.sh
 USER ubuntu
diff --git a/start.sh b/start.sh
index df29b09..b64e3ff 100755
--- a/start.sh
+++ b/start.sh
@@ -1,44 +1,85 @@
 #!/bin/bash
-# Clean up stale sockets from previous run
+set -euo pipefail
+
+# ── Clean up stale sockets from previous run ──────────────────────────────────
 rm -f /tmp/.X99-lock
 rm -f /tmp/.X11-unix/X99
-rm -rf /tmp/pulse-*
-rm -f /run/user/$(id -u)/pulse/native
 rm -rf /tmp/weston-runtime
 
-# Set up Weston runtime directory
+# ── XDG runtime dir (required by Weston and PipeWire) ────────────────────────
 export XDG_RUNTIME_DIR=/tmp/weston-runtime
-mkdir -p $XDG_RUNTIME_DIR
-chmod 700 $XDG_RUNTIME_DIR
+mkdir -p "$XDG_RUNTIME_DIR"
+chmod 700 "$XDG_RUNTIME_DIR"
 
-# Start Weston in headless mode (handles Vulkan/DXVK rendering)
+# ── D-Bus session bus (required by PipeWire / wireplumber) ───────────────────
+eval $(dbus-launch --sh-syntax)
+export DBUS_SESSION_BUS_ADDRESS
+
+# ── Wine virtual desktop matching Weston size ────────────────────────────────
+wine reg add "HKCU\\Software\\Wine\\Explorer" /v "Desktop" /t REG_SZ /d "Default" /f
+wine reg add "HKCU\\Software\\Wine\\Explorer\\Desktops" /v "Default" /t REG_SZ /d "800x600" /f
+wine reg add "HKCU\\Software\\Valve\\Source\\cstrike\\Settings" /v ScreenWidth  /t REG_DWORD /d 800 /f
+wine reg add "HKCU\\Software\\Valve\\Source\\cstrike\\Settings" /v ScreenHeight /t REG_DWORD /d 600 /f
+wine reg add "HKCU\\Software\\Wine\\WineDbg" /v ShowCrashDialog /t REG_DWORD /d 0 /f
+export DXVK_CUSTOM_DISPLAY_MODES="800x600@60"
+
+# ── Start Weston (headless Wayland compositor) ────────────────────────────────
 weston --backend=headless-backend.so --width=800 --height=600 --no-config &
 sleep 2
-export WAYLAND_DISPLAY=wayland-0
 
-# Start Xwayland — bridges Weston Wayland to X11 for ximagesrc capture
-Xwayland :99 &
-sleep 1
+export WAYLAND_DISPLAY=$(ls "$XDG_RUNTIME_DIR/" | grep -o 'wayland-[0-9]*' | head -1)
+echo "Using WAYLAND_DISPLAY=$WAYLAND_DISPLAY"
+
+# ── Start Xwayland (X11 compatibility layer over Wayland) ────────────────────
+# -geometry fixes the virtual framebuffer at exactly 800x600 from the start,
+# matching Weston's headless output — no xrandr mode-adding needed.
+Xwayland :99 -glamor off -shm -geometry 800x600 &
+
+for i in $(seq 1 20); do
+    DISPLAY=:99 xdpyinfo > /dev/null 2>&1 && echo "Xwayland ready" && break
+    echo "Waiting for Xwayland... attempt $i"
+    sleep 1
+done
 export DISPLAY=:99
+echo "xrandr result: $(DISPLAY=:99 xrandr | grep '*')"
 
-# Suppress Wine crash dialog
-wine reg add "HKCU\\Software\\Wine\\WineDbg" /v ShowCrashDialog /t REG_DWORD /d 0 /f
+# ── Start PipeWire stack ──────────────────────────────────────────────────────
+export PULSE_RUNTIME_PATH="$XDG_RUNTIME_DIR/pulse"
+rm -rf "$PULSE_RUNTIME_PATH"
 
-# Start PulseAudio for game audio
-pulseaudio --start --exit-idle-time=-1
-for i in $(seq 1 10); do
-    pactl info > /dev/null 2>&1 && break
-    echo "Waiting for PulseAudio... attempt $i"
+pipewire &
+sleep 1
+wireplumber &
+sleep 1
+pipewire-pulse &
+
+# Wait for the PulseAudio-compatible socket
+for i in $(seq 1 30); do
+    pactl info > /dev/null 2>&1 && echo "PipeWire-Pulse ready" && break
+    echo "Waiting for PipeWire-Pulse... attempt $i"
     sleep 1
 done
 
-# Virtual microphone
-pactl load-module module-null-sink sink_name=mic_sink
-pactl load-module module-virtual-source source_name=virtual_mic master=mic_sink.monitor
-pactl set-default-source virtual_mic
+export PULSE_SERVER="unix:${PULSE_RUNTIME_PATH}/native"
 
-# Launch CSS — Wine uses Wayland driver for rendering via Weston/Vulkan
+# Virtual microphone — use || true so a pre-existing module doesn't abort
+# the script (set -e is active). The "Failure: No such entity" in the old
+# logs was module-virtual-source failing; under PipeWire-Pulse we use
+# module-null-sink + module-remap-source which is better supported.
+pactl load-module module-null-sink sink_name=mic_sink sink_properties=device.description=mic_sink || true
+pactl load-module module-remap-source source_name=virtual_mic master=mic_sink.monitor || true
+pactl set-default-source virtual_mic || true
+
+# ── Launch CSS ────────────────────────────────────────────────────────────────
 wine ~/Counter-Strike\ Source/revLoader.exe &
-sleep 5
 
+for i in $(seq 1 60); do
+    WIN=$(DISPLAY=:99 xdotool search --name "" 2>/dev/null | head -1)
+    [ -n "$WIN" ] && echo "CSS window found: $WIN" && break
+    echo "Waiting for CSS window... attempt $i"
+    sleep 1
+done
+sleep 3
+
+# ── Start streaming agent ─────────────────────────────────────────────────────
 python3 ~/streaming-agent/gst_agent.py
diff --git a/streaming-agent/gst_agent.py b/streaming-agent/gst_agent.py
index 3a212f0..53552b0 100755
--- a/streaming-agent/gst_agent.py
+++ b/streaming-agent/gst_agent.py
@@ -4,14 +4,15 @@ GStreamer WebRTC Agent for CSS Streaming
 
 Two tracks published to Cloudflare Calls:
   - Video:      ximagesrc (Xwayland :99) → VP8 → webrtcbin
-  - Game audio: pulsesrc → Opus → webrtcbin
+  - Game audio: pipewiresrc → Opus → webrtcbin
 
 CSS renders via Wine Wayland driver → Weston (Vulkan/DXVK) → Xwayland → X11
 ximagesrc captures from Xwayland X11 display :99
 
 Dependencies:
   apt: python3-gst-1.0 gstreamer1.0-plugins-bad gstreamer1.0-plugins-good
-       gstreamer1.0-plugins-ugly gstreamer1.0-libav xdotool weston xwayland
+       gstreamer1.0-plugins-ugly gstreamer1.0-libav gstreamer1.0-pipewire
+       xdotool weston xwayland wireplumber pipewire pipewire-pulse
   pip: requests websockets
 """
 
@@ -109,19 +110,26 @@ class CSSStreamAgent:
 
     def build_pipeline(self):
         pipeline_str = (
-            # Video: ximagesrc from Xwayland display → VP8
+            # Video: ximagesrc → convert → scale → rate-enforce → VP8
+            # videoconvert must come before caps negotiation;
+            # videoscale enforces width/height; videorate enforces framerate.
             f'ximagesrc display-name={DISPLAY} use-damage=0 ! '
-            f'video/x-raw,framerate={CAP_FPS}/1,width={CAP_W},height={CAP_H} ! '
             f'videoconvert ! '
+            f'videoscale ! '
+            f'videorate ! '
+            f'video/x-raw,framerate={CAP_FPS}/1,width={CAP_W},height={CAP_H} ! '
             f'vp8enc deadline=1 target-bitrate=1500000 keyframe-max-dist=60 '
             f'error-resilient=partitions lag-in-frames=0 ! '
             f'rtpvp8pay pt=96 ! '
             f'application/x-rtp,media=video,encoding-name=VP8,payload=96 ! '
             f'webrtcbin. '
 
-            # Game audio: pulsesrc → Opus
-            f'pulsesrc ! '
-            f'audio/x-raw,rate=48000,channels=2 ! '
+            # Game audio: pipewiresrc → Opus
+            # pipewiresrc is the native PipeWire GStreamer source (Ubuntu 24+/26).
+            # It connects to the default audio output monitor via PipeWire directly,
+            # avoiding the PulseAudio compatibility layer entirely.
+            f'pipewiresrc ! '
+            f'audio/x-raw,format=F32LE,rate=48000,channels=2 ! '
             f'audioconvert ! '
             f'opusenc ! '
             f'rtpopuspay pt=97 ! '