[akavel]

Nickel vs. Nix? as I wrote, Nickel is a "statically-typed successor" - newer, created (in progress) by people with Nix experience, vs. Nix being dynamically typed.

As to the rest - more or less yes, nicely put :)

[yencabulator]

No I mean your last two list items, starting with "vs".

[akavel]

"Last recorded" is intended to reflect what was previously observed on the machine.