Foliate doesn't launch anymore

Describe the bug

$ foliate Books/book.epub 

(com.github.johnfactotum.Foliate:10623): Adwaita-WARNING **: 17:45:07.310: Using GtkSettings:gtk-application-prefer-dark-theme with libadwaita is unsupported. Please use AdwStyleManager:color-scheme instead.
bwrap: No permissions to create a new namespace, likely because the kernel does not allow non-privileged user namespaces. On e.g. debian this can be enabled with 'sysctl kernel.unprivileged_userns_clone=1'.

** (com.github.johnfactotum.Foliate:10623): ERROR **: 17:45:07.674: Failed to fully launch dbus-proxy: Child process exited with code 1
Aborted

I understand this might be a security feature. But does this really have to be mandatory to read a basic book? Make it disable all interactive content if you want, I don't read such books anyway.

To Reproduce Steps to reproduce the behavior:

1. Launch on system without namespace access
2. See error

Expected behavior Reading static noninteractive EPUBs shouldn't need user namespace control.

Screenshots

Version:

• Foliate version: ARM64 foliate-3.3.0-r0 as shipped by Alpine
• OS/Distribution and version: Alpine Edge ARM64
• Desktop environment: KDE
• Installation method: Alpine apk

Additional context