Add zsh as an option thank you Jerry 😉

config/home/bash.nix

@@ -1,7 +1,7 @@
-{ config, pkgs, ... }:
+{ config, lib, pkgs, ... }:
 
-let inherit (import ../../options.nix) flakeDir; in
-{
+let inherit (import ../../options.nix) flakeDir theShell; in
+lib.mkIf (theShell == "bash") {
   # Configure Bash
   programs.bash = {
     enable = true;

config/home/default.nix

@@ -17,6 +17,7 @@
     ./swappy.nix
     ./swaylock.nix
     ./swaync.nix
+    ./zsh.nix
 
     # Place Home Files Like Pictures
     ./files.nix

config/home/zsh.nix

@@ -0,0 +1,59 @@
+{ config, lib, pkgs, ... }:
+
+let inherit (import ../../options.nix) flakeDir theShell; in
+lib.mkIf (theShell == "zsh") {
+  programs.zsh = {
+    enable = true;
+    syntaxHighlighting.enable = true;
+    enableAutosuggestions = true;
+    historySubstringSearch.enable = true;
+    profileExtra = ''
+      #if [ -z "$DISPLAY" ] && [ "$XDG_VNTR" = 1 ]; then
+      #  exec Hyprland
+      #fi
+    '';
+    initExtra = ''
+      zstyle ":completion:*" menu select
+      zstyle ":completion:*" matcher-list "" "m:{a-z0A-Z}={A-Za-z}" "r:|=*" "l:|=* r:|=*"
+      if type nproc &>/dev/null; then
+        export MAKEFLAGS="$MAKEFLAGS -j$(($(nproc)-1))"
+      fi
+      bindkey '^[[3~' delete-char                     # Key Del
+      bindkey '^[[5~' beginning-of-buffer-or-history  # Key Page Up
+      bindkey '^[[6~' end-of-buffer-or-history        # Key Page Down
+      bindkey '^[[1;3D' backward-word                 # Key Alt + Left
+      bindkey '^[[1;3C' forward-word                  # Key Alt + Right
+      bindkey '^[[H' beginning-of-line                # Key Home
+      bindkey '^[[F' end-of-line                      # Key End
+      neofetch
+      if [ -f $HOME/.zshrc-personal ]; then
+        source $HOME/.zshrc-personal
+      fi
+      eval "$(starship init zsh)"
+    '';
+    initExtraFirst = ''
+      HISTFILE=~/.histfile
+      HISTSIZE=1000
+      SAVEHIST=1000
+      setopt autocd nomatch
+      unsetopt beep extendedglob notify
+      autoload -Uz compinit
+      compinit
+    '';
+    sessionVariables = {
+
+    };
+    shellAliases = {
+      sv="sudo vim";
+      flake-rebuild="sudo nixos-rebuild switch --flake ${flakeDir}";
+      flake-update="sudo nix flake update ${flakeDir}";
+      gcCleanup="nix-collect-garbage --delete-old && sudo nix-collect-garbage -d && sudo /run/current-system/bin/switch-to-configuration boot";
+      v="nvim";
+      ls="lsd";
+      ll="lsd -l";
+      la="lsd -a";
+      lal="lsd -al";
+      ".."="cd ..";
+    };
+  };
+}

options.nix

@@ -24,6 +24,7 @@ in {
   theSecondKBDLayout = "pl";
   theLCVariables = "en_US.UTF-8";
   theTimezone = "America/Chicago";
+  theShell = "bash"; # Possible options: bash, zsh
   cpuType = "intel";
   gpuType = "amd";
 

system.nix

@@ -4,7 +4,7 @@
 let 
   inherit (import ./options.nix) 
     theLocale theTimezone gitUsername
-    wallpaperDir wallpaperGit
+    theShell wallpaperDir wallpaperGit
     theLCVariables theKBDLayout;
 in {
   imports =
@@ -43,6 +43,8 @@ in {
     isNormalUser = true;
     description = "${gitUsername}";
     extraGroups = [ "networkmanager" "wheel" "libvirtd" ];
+    shell = pkgs.${theShell};
+    ignoreShellProgramCheck = true;
     packages = with pkgs; [];
   };