Refactor user management functions to use inputs

Removed the `lib.nix` file and refactored various modules to utilize `inputs.self.lib` for user package and attribute management. This change enhances consistency and maintainability across the configuration files.

modules/shell/config.nix

@@ -1,5 +1,6 @@
 {
   config,
+  inputs,
   lib,
   pkgs,
   ...
@@ -14,11 +15,9 @@
     description = "The shell to use system-wide (bash or zsh)";
   };
   config = {
-    users.users = let
-      userLib = import ../lib.nix { inherit lib; };
-    in lib.mkMerge (map (user: {
+    users.users = lib.mkMerge (map (user: {
       ${user}.shell = pkgs.${config.my.shell.type};
-    }) (userLib.normalizeUsers config.my.toggleUsers.shell));
+    }) (inputs.self.lib.normalizeUsers config.my.toggleUsers.shell));
     programs.zsh.enable = config.my.shell.type == "zsh";
   };
 }

modules/shell/exercism.nix

@@ -1,5 +1,6 @@
 {
   config,
+  inputs,
   lib,
   pkgs,
   ...
@@ -8,13 +9,12 @@
   options.my.shell.exercism.enable = lib.mkEnableOption "Exercism coding practice platform";
   config = lib.mkIf config.my.shell.exercism.enable {
     users.users = let
-      userLib = import ../lib.nix { inherit lib; };
       packages = builtins.attrValues {
         inherit (pkgs)
           exercism # learn to code
           bats # testing system, required by Exercism
           ;
       };
-    in userLib.mkUserPackages config.my.toggleUsers.shell packages;
+    in inputs.self.lib.mkUserPackages lib config.my.toggleUsers.shell packages;
   };
 }

modules/shell/multimedia.nix

@@ -9,17 +9,14 @@
   options.my.shell.multimedia.enable = lib.mkEnableOption "multimedia CLI tools and codecs";
   config = lib.mkIf config.my.shell.multimedia.enable {
     sops.secrets."gallery-dl/secrets" = let
-      userLib = import ../lib.nix { inherit lib; };
       # Use first user for secret ownership
-      user = userLib.getFirstUser config.my.toggleUsers.shell;
+      user = inputs.self.lib.getFirstUser config.my.toggleUsers.shell;
     in {
       sopsFile = ../../secrets/gallery.yaml;
       owner = user;
       mode = "0400";
     };
-    home-manager.users = let
-      userLib = import ../lib.nix { inherit lib; };
-    in userLib.mkHomeManagerUsers config.my.toggleUsers.shell (user: {
+    home-manager.users = inputs.self.lib.mkHomeManagerUsers lib config.my.toggleUsers.shell (user: {
       programs = {
         yt-dlp = {
           enable = true;
@@ -46,7 +43,6 @@
       };
     });
     users.users = let
-      userLib = import ../lib.nix { inherit lib; };
       packages = builtins.attrValues {
         inherit (pkgs)
           ffmpeg # not ffmpreg, the coolest video conversion tool!
@@ -54,6 +50,6 @@
           ffpb # make ffmpeg encoding... a bit fun
           ;
       };
-    in userLib.mkUserPackages config.my.toggleUsers.shell packages;
+    in inputs.self.lib.mkUserPackages lib config.my.toggleUsers.shell packages;
   };
 }

modules/shell/tools.nix

@@ -11,9 +11,7 @@ in
 {
   options.my.shell.tools.enable = lib.mkEnableOption "shell tools and utilities";
   config = lib.mkIf config.my.shell.tools.enable {
-    home-manager.users = let
-      userLib = import ../lib.nix { inherit lib; };
-    in userLib.mkHomeManagerUsers config.my.toggleUsers.shell (user: {
+    home-manager.users = inputs.self.lib.mkHomeManagerUsers lib config.my.toggleUsers.shell (user: {
       programs = {
       hstr.enable = true;
       htop = {
@@ -99,7 +97,6 @@ in
       };
     };
     users.users = let
-      userLib = import ../lib.nix { inherit lib; };
       packages = builtins.attrValues {
       inherit (pkgs)
         ripgrep # modern grep
@@ -115,7 +112,7 @@ in
         rmlint # amazing dupe finder that integrates well with BTRFS
         ;
       };
-    in userLib.mkUserPackages config.my.toggleUsers.shell packages;
+    in inputs.self.lib.mkUserPackages lib config.my.toggleUsers.shell packages;
     environment.variables = {
       HISTFILE = "\${XDG_STATE_HOME}/bash/history";
       LESSHISTFILE = "-";