The -Werror is introduced by libobs.pc shipped by obs-studio. meson setup build -Dwerror=false won't work. It's not easy to find out.

In Wayland there is good support for touchpad gestures. Applications are widely agreed to use two-finger move for scrolling viewports, and two-finger pinch to zoom. imv is different.

I want to zoom to e.g. 200% or 400% etc, but there is no way to archieve it. The "zoom" command accepts an integer as power of base 1.04. The closest I can get is 194%.