Xmonad with XFCE in no-desktop mode.

I can use the xfce tools to configure things like mouse and screen settings, but visually it’s just xmonad.

Do you expect your dog to explode with the force of 400 pounds of TNT?

I think nixos is still niche, but seems to be gaining momentum. It has some unique features:

• Every package has its own dependencies, so you can install a 7 year old firefox alongside the latest, and have no interference.
• Packages with dependencies in common still share them (for space savings).
• Abandons the HFS, but can still fake it for apps that need it.
• Can make dev environments that are exactly reproducible across machines, and only exist within a specific shell session. So you can have a project that relies on an out of date version of a compiler, and another that uses the latest, and run both at the same time.
• Make your own packages that other people can install using a git repo address.
• The package language can also describe a machine’s configuration; systemd services, default packages, user accounts, etc.
• You can build and remotely deploy a machine config in one line.
• You can cross compile a machine config for another cpu architecture, like ARM.
• OS upgrades are atomic, and reversible. If it doesn’t work out, you can go back to the previous config.
• No reason to ever reinstall. Recently upgraded a machine that had sat in a closet for 5 years to the newest release. Flawless upgrade.
• Nixos boasts more packages than any other distro, over 100,000.

There are certainly downsides - poor docs, confusing core language. Instructions for installing something on say debian will not work on nixos. I do think this style of package management is the future, if perhaps not this specific implementation. It can be a pain but its also super solid.