Revise paste Linter warnings for Nix flake

Statix:
[W04] Warning: Assignment instead of inherit from
    ╭─[./flake.nix:11:7]
    │
 11 │       lib = nixpkgs.lib;
    ·       ─────────┬────────  
    ·                ╰────────── This assignment is better written with inherit
────╯
[W10] Warning: Found empty pattern in function argument
     ╭─[./flake.nix:601:24]
     │
 601 │         userJellyfin = { ... }: {
     ·                        ───┬───  
     ·                           ╰───── This pattern is empty, use _ instead
─────╯
[W10] Warning: Found empty pattern in function argument
     ╭─[./flake.nix:616:21]
     │
 616 │         userRanko = { ... }: {
     ·                     ───┬───  
     ·                        ╰───── This pattern is empty, use _ instead
─────╯

Deadnix:
Warning: Unused declarations were found.
   ╭─[./sops-nix-dev-shell-flake.nix:6:15]
 6 │  outputs = { self, nixpkgs, sops-nix }: {
   │                ╰── Unused lambda pattern: self
Warning: Unused declarations were found.
     ╭─[./flake.nix:9:30]
   9 │  outputs = { nixpkgs, ... }@inputs:
     │                                ╰─── Unused lambda pattern: inputs
 221 │      homeConfigurations = {
     │               ╰───────── Unused let binding: homeConfigurations
 537 │        homeManager = { config, lib, pkgs, ... }: {
     │                                       ╰── Unused lambda pattern: pkgs
 706 │            ({ pkgs, vars, ... }: {
     │                 │     ╰── Unused lambda pattern: vars
     │                 ╰──────── Unused lambda pattern: pkgs
 720 │          ({ config, pkgs, lib, ... }: {
     │                ╰─── Unused lambda pattern: config
 748 │          ({ config, pkgs, lib, ... }: {
     │                │           ╰── Unused lambda pattern: lib
     │                ╰────────────── Unused lambda pattern: config