I’m wondering primarily for https://snapcraft.io/pinta whether the Glycin image encode/decode stack for Gnome will be ready in snapd? Relating to this blog.
https://blogs.gnome.org/sophieh/2025/06/13/making-gnomes-gdkpixbuf-image-loading-safer/
Copying my comments from elsewhere, are these statements accurate? And if so are they being addressed?
a high level it likely involves:
Changes to the desktop interface to accomodate new DBus calls
Changes to snapd via the snapctl binary in the runtime environment to allow it to replace the functionality of flatpak-spawn
Patches to Glycin to become aware of the snapctl changes so it can make use of them to create the subsandbox.
If the first bullet is required, this would also require a new minimum snapd version. Thankfully across most platforms, snapd either updates itself, or is updated in the distribution repos separately. But that might mean these changes get pushed back to Core26 depending on how the implementation ends up proceeding.