Waydroid in WSL2 with sound (Weston on top of Weston approach)

waydroidwsl2.txt

Recommended to install Waydroid in a brand new Ubuntu 25.04 install
Waydroid needs a custom linux kernel. It just needs latest kernel for WSL2 
  https://github.com/microsoft/WSL2-Linux-Kernel/blob/linux-msft-wsl-6.6.y/arch/x86/configs/config-wsl

With just these changes before compiling:

  CONFIG_ANDROID_BINDER_IPC=y
  CONFIG_ANDROID_BINDER_DEVICES="binder,hwbinder,vndbinder"


Make sure WSL2 uses the custom kernel modifying .wslconfig

Install Ubuntu 25.04 from https://releases.ubuntu.com/plucky/ubuntu-25.04-wsl-amd64.wsl
  Double click on the .wsl file to install
  
Run Ubuntu 25.04 and make sure is updated
  sudo apt update && sudo apt upgrade -y
  
Install weston
  sudo apt install weston
  
Install waydroid
  curl -s https://repo.waydro.id | sudo bash
  sudo apt install waydroid
  
Configure Waydroid to only use software rendering
  sudo nano /var/lib/waydroid/waydroid_base.prop

    ro.hardware.gralloc=default
    ro.hardware.egl=swiftshader

Make weston detect gpu for some acceleration
  export GALLIUM_DRIVER=d3d12

Run weston
  weston --backend=wayland-backend.so 

Inside weston desktop shell open a terminal and run
  waydroid session start

When it shows 'Android with user 0 is ready' then open another terminal inside the weston desktop and run
  waydroid show-full-ui
  
tips: 
If Waydroid shows some weird dbus errors make sure you shutdown the WSL2 VM (wsl.exe --shutdown) and try again.
For some reason Waydroid only launches if the WSL2 networking mode is not MIRRORED.
Every time the WSL2 kernel changes significantly (from ASHMEM support in 5.15.x to none in 6.6.x) you need to reinstall Waydroid or it wont boot.
  sudo apt reinstall waydroid

You are welcome. And yes, right now Waydroid only works with software rendering. I'm looking at the Lineage image Waydroid uses and their mesa actually is compiled with d3d12 support. That means Waydroid should have gpu acceleration in WSL2 through mesa but it doesn't work. I guess the problem is Waydroid is inside a container so it can't access /lib/wsl/lib and lib/wsl/drivers.