GTK segfault on Ubuntu 24.04 Snap — schema and font-antialiasing

[zag]

After the Wayland fix in v0.7.2, a different segfault was reported in #43. Ubuntu 24.04 LTS, Wayland, Snap, GNOME 46

Error log

[77708:0401/133825.635892:ERROR:ui/gtk/gtk_ui.cc:259] Schema org.gnome.desktop.interface does not have key font-antialiasing
Error reading state file: /home/smonff/snap/podlite/8/.config/podlite/storage/app.json
ENOENT: no such file or directory
/snap/podlite/8/podlite: line 2: 77708 Segmentation fault (core dumped)

Root cause (likely)

electron-builder v23 generates snaps with base: core18 (EOL). core18 doesn't have the org.gnome.desktop.interface gsettings schemas that GTK on GNOME 46 expects. The missing font-antialiasing key breaks GTK initialization, which leads to a segfault on native dialog open.

The app.json ENOENT is a first-run condition (no state file yet) — not the crash itself, but needs graceful handling.

Plan

Fixing this with the electron-builder v23 -> v26+ upgrade — new snap base: core22 ships current GNOME schemas.

Environment

• Ubuntu 24.04.4 LTS
• GNOME 46, Wayland
• snap confinement
• Podlite v0.7.2
• Lenovo ThinkPad P14s Gen 2i, Intel Iris Xe