Does my first-ever configuration.nix look alright?

[trusktr]

The following from "programs.foo.enable = true" vs "systemPackages=[foo]" is confusing - #9 by jonringer was helpful:

@jonringer

generally the ‘.enable = true’ options are preferred as they will be smart about a system effects which are needed to the application/service to run correctly. For example, ‘virtualization.docker.enable = true’ will create the necessary groups, install the docker-daemon, install the docker cli, and a few other things to enable normal docker usage.

So, that’s something I need to do, is figure which things I have in systemPackages that I should instead install with configuration options like programs.foo.enable = true.