That is cool. I use dcli which is quite nice to use and easily manages dotfiles and scripts. I see you've added post install hooks which would allow to manage dotfiles for example.
I really like to use a declarative package manager on a different distro than NixOS. My current install is managed entirely by that tool with specific scripts that modify some config files like fstab for instance.
I personally like combining both on desktop. Scrolling for web and occasional file browser or terminal, tiling for coding and ricing, tiling for messaging apps, etc. It depends on the need. That's why I went with MangoWC. I keep niri for my laptop though (where I also don't want blur anyway).