> Except that Docker et al are already that compromised solution. No need to replicate.

I think you're right that Docker has embraced the "meet half-way" school of thought (maybe too much?). But that doesn't mean they have exclusivity over the approach.

Docker lacks many of the features that make Nix so powerful. On the other hand Docker is much more pleasant to use, for me at least.

If a tool came along that combined the simplicity of Docker with the power of Nix, I would probably stop using both, and just use that. I think Nix itself could be that tool... if only they fixed the issues I described above.