There is a slackbuild for RiverWM, but it's very old. Grabbed the rpm from Fedora y'day and added River to my Slackware-nwg setup. Niri, river, hyprland and sway. For my panels to behave correctly I use nwg-panel (with niri-tasks) on Niri and Waybar on River. Nwg-panel with the hyprland config on Hyprland. Now I'm merging the applications, so keybinds relate to the same applications across the board.
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