$ flatpak list
Name Application ID Version Branch Installation
Bookworm com.github.babluboy.bookworm 1.1.2 stable system
Mesa org.freedesktop.Platform.GL.default 21.3.9 21.08 system
Mesa org.freedesktop.Platform.GL.default 23.0.2 22.08 system
Mesa (Extra) org.freedesktop.Platform.GL.default 23.0.2 22.08-extra system
openh264 org.freedesktop.Platform.openh264 2.1.0 2.0 system
openh264 org.freedesktop.Platform.openh264 2.1.0 2.2.0 system
GNOME Application Platform version 42 org.gnome.Platform 42 system
GNOME Application Platform version 44 org.gnome.Platform 44 system
Pitivi org.pitivi.Pitivi 2022.06 stable system
Codecs org.pitivi.Pitivi.Codecs stable system
$ flatpak run com.github.babluboy.bookworm
(process:2): GLib-GIO-DEBUG: 17:25:29.960: _g_io_module_get_default: Found default implementation gvfs (GDaemonVfs) for ?gio-vfs?
** (process:2): DEBUG: 17:25:29.961: bookworm.vala:128: Bookworm Install Directory: /app/share
** (process:2): DEBUG: 17:25:29.962: bookworm.vala:129: Bookworm Install Tasks Scripts Directory: /app/share/com.github.babluboy.bookworm/scripts/tasks
** (process:2): DEBUG: 17:25:29.962: bookworm.vala:130: Bookworm Install Mobi Scripts Directory: /app/share/com.github.babluboy.bookworm/scripts/mobi_lib
** (process:2): DEBUG: 17:25:29.962: bookworm.vala:131: Bookworm User Data Directory: /home/guy/.var/app/com.github.babluboy.bookworm/data/com.github.babluboy.bookworm
Gtk-Message: 17:25:30.145: Failed to load module "canberra-gtk-module"
Gtk-Message: 17:25:30.185: Failed to load module "canberra-gtk-module"
(com.github.babluboy.bookworm:2): GLib-DEBUG: 17:25:30.191: unsetenv() is not thread-safe and should not be used after threads are created
An then nothing happened. No GUI