For example:
% flatpak install mousai -y
Looking for matches…
Required runtime for io.github.seadve.Mousai/x86_64/stable (runtime/org.gnome.Platform/x86_64/44) found in remote flathub
io.github.seadve.Mousai permissions:
network fallback-x11 pulseaudio wayland x11 dri
ID Branch Op Remote Download
1. [✗] org.freedesktop.Platform.GL.default 22.08 i flathub 46.6 MB / 143.1 MB
ID Branch Op Remote Download
1. [✗] org.freedesktop.Platform.GL.default 22.08 i flathub 46.6 MB / 143.1 MB
2. [✗] org.freedesktop.Platform.GL.default 22.08-extra i flathub 48.7 MB / 143.1 MB
3. [✗] org.freedesktop.Platform.VAAPI.Intel 22.08 i flathub 13.4 MB / 13.4 MB
4. [✗] org.freedesktop.Platform.openh264 2.2.0 i flathub 541.8 kB / 944.3 kB
5. [✗] org.gtk.Gtk3theme.Yaru-olive 3.22 i flathub 138.5 kB / 185.0 kB
6. [✗] org.gnome.Platform 44 i flathub 127.5 MB / 326.4 MB
7. [ ] io.github.seadve.Mousai stable i flathub < 1.1 MB
Warning: While pulling runtime/org.freedesktop.Platform.GL.default/x86_64/22.08 from remote flathub: Writing content object: Need more input
Warning: While pulling runtime/org.freedesktop.Platform.GL.default/x86_64/22.08-extra from remote flathub: Writing content object: Need more input
Warning: While pulling runtime/org.freedesktop.Platform.VAAPI.Intel/x86_64/22.08 from remote flathub: Writing content object: Need more input
Warning: While pulling runtime/org.freedesktop.Platform.openh264/x86_64/2.2.0 from remote flathub: Input buffer too small
Warning: While pulling runtime/org.gtk.Gtk3theme.Yaru-olive/x86_64/3.22 from remote flathub: Input buffer too small
Error: While pulling runtime/org.gnome.Platform/x86_64/44 from remote flathub: Writing content object: Need more input
error: Failed to install org.gnome.Platform: While pulling runtime/org.gnome.Platform/x86_64/44 from remote flathub: Writing content object: Need more input
I have no idea what “more input” it wants, or how to supply it.