"Cannot create wl_display" (Wayland issue)

[digisus]

Hi! I am on Debian trixie/sid with v4.5.1 via flatpak.

op@x1:~$ flatpak run net.sonic_pi.SonicPi
Starting Sonic Pi...
Failed to create wl_display (No such file or directory)
qt.qpa.plugin: Could not load the Qt platform plugin "wayland" in "" even though it was found.
Gtk-Message: 21:02:16.213: Failed to load module "canberra-gtk-module"
Gtk-Message: 21:02:16.213: Failed to load module "canberra-gtk-module"
qt.qpa.qgnomeplatform: Could not find color scheme  ""
Qt: Session management error: Could not open network socket

(I find the empty "" is most irritating)

The app boots but I cannot hear anything when I click "play."

Thanks for any helpful tips!

[rbnpi]

Hi there. I installed a virtual trixie today using UTM on my Mac. I haven't tried the flatpack on it yet, but I did build the latest SP from source using the latest commit today #ce240b5 because it is now easy to build in linux. I needed the following steps on my new virtual trixie.
install git
clone the SP image into a convenient folder. I created dev in the home folder

git clone https://sonic-pi/sonic-pi-net
open the BUILD-LINUX.md file and scroll down to the list of debian packages required. Copy this and execute

sudo apt-get install -y build-essential git libssl-dev ruby-dev elixir erlang-dev erlang-xmerl qt6-tools-dev qt6-tools-dev-tools libqt6svg6-dev libqt6opengl6-dev supercollider-server sc3-plugins-server alsa-utils  libasound2-dev cmake ninja-build pipewire-jack libspa-0.2-jack qt6-wayland libwayland-dev libxkbcommon-dev libegl1-mesa-dev libx11-dev libxft-dev libxext-dev qpwgraph compton m4 libaubio-dev libpng-dev libboost-all-dev librtmidi-dev

open the folder sonic-pi/app and run the script

./linux-build-all.sh

Have a cup of tea and wait for the build to finish.
run your newly installed sonic pi in my case

~/dev/sonic-pi/bin/sonic-pi

NB all of the installed packages were on the iso disk I downloaded for the install