Unable to run: Fontconfig error - Cannot load config file
I tried this on my host (NixOS x86) and smartphone (Alpine Linux) but both failed with the same error
flatpak install org.gnome.Sdk//master
flatpak install org.freedesktop.Sdk.Extension.rust-stable//23.08
flatpak-builder --user workdir build-aux/app.drey.Envelope.Devel.json
flatpak-builder --run workdir build-aux/app.drey.Envelope.Devel.json bash
mkdir build && cd build
meson setup --prefix=/app -D profile=development ..
ninja
ninja install
envelope
Fontconfig error: Cannot load config file "/run/host/font-dirs.xml": No such file: /run/host/font-dirs.xml