Niri is so good. I've switched to using it about 5 months ago and it was legit the best computing decision I can remember making in recent history to move away from Windows. I have a huge amount of gratitude towards the author of niri. My dotfiles have always included an install script for setting everything up around command line tools, theme switching and more but it fully supports niri now too on Arch based distro…
Please take a look at Nirimod (unaffiliated, but it's awesome.)
Also, my dotfiles come with a custom Walker menu to find and search through niri key binds, selecting the key bind will run the action too.
With that said, if you're using my dotfiles and want to use this tool, it would be as simple as adding "nirimod-git" to the `PACKAGES_AUR_GUI_EXTRAS` variable in your config file.