This allows you to use vim-like marks in sway easily.
Usage:
bindsym --to-code $mod+m exec sway-marker mark
bindsym --to-code $mod+grave exec sway-marker goto
After adding this to your sway config you can use marks like this:
mod+m and then type a character will create a mark on the currently focused container (window)
mod+grave(`) then type a character will focus the previously marked container.
Arch Linux: install the AUR package
openSUSE: available as a package on OBS: zypper in sway-marker
Binary: you can download a binary from the releases page
Compiling: install rust, gtk and gtk-layer-shell and build with cargo build --release. The file will be in target/release/sway-marker.