Write your own river layout generator in lua.

Very nice implementation of a river-wm 'layout' which can actually be used to generate your own layouts with lua.
As far as I can see, for now this only supports a single layout file and not switchable/callable layouts with different namespaces, but that is sure to come.

A port of i3bar for river.

Wayland and riverwm-compatible port of i3bar statusbar. Also works with the fast i3bar replacement i3bar-rs. Neat!

Keymap manager for wlroots-based compositors.

A which-key like map display for wayland. Written in rust. Also implemented as a launcher - contains direct commands for whatever the matching keymap is.

A leader key-style command launcher for the sway window manager.

Similar-ish to which-key in that it displays key combination results but functions as an actual runner.

A universal which-key command to provide spacemacs-like shortcut tooltip on desktop and any windows.

Allows you to show which-key like keymap overlays for e.g. your window manager, as well as individual programs (using 'major modes' - though I am not sure how well it works in practice).

I believe this is an X11-only application