Nix still has issues with things going out of date / falling out of support. One of the good points about deno raised in the article is that deno removes that

Nix still has issues with things going out of date / falling out of support. One of the good points about deno raised in the article is that deno removes that problem by having first-party solutions to things that developers usually need built-in. Also while JS has plenty of footguns, Deno being built around TS and deno ts developers using eslint as a standard practice eliminates those footguns.