I will read this through egui and let you know .. my limited exposure to Rust so far been only CLI .. egui seems interesting ... so yes .. As regards to your dual monitor .. assuning you are running gnome or xfce .. do your #gossip windows align left (or right) with < super + left arrow > or < super + right arrow > ?
I use xfce, but I don't seem to have these key mappings. They don't do anything for me.
Oh .. xfce works like popular tiling windows manager - i3 or sway .. you can map your keys in the settings but out of the box super + left arrow is to align the window on left half of the screen .. and super+ right arrow for alinging on the right side .. you can check your jeyboard maps in Settings > windows manager > keyboard ... and edit the shortcuts there .. Its kinda same in gnome and cinnamon too .. bit here and there