Move Nix files into a nix directory

Move everything from `config` to the root level.

nix/modules/home-manager/zsh.nix

@@ -0,0 +1,124 @@
+{ pkgs, ... }:
+
+{
+  programs.zsh = {
+    dotDir = ".config/zsh";
+    enable = true;
+    enableCompletion = true;
+
+    cdpath = [ "~/Code" ];
+
+    shellAliases = (import ./zsh/aliases.nix);
+
+    localVariables = {
+      ABBR_SET_EXPANSION_CURSOR = 1;
+    };
+
+    initExtra = ''
+      # suffix
+      alias -s gz="tar -tf"
+      alias -s {html,HTML}="background firefox"
+      alias -s {jpg,JPG,png,PNG}="background okular"
+      alias -s {pdf,PDF}="background okular"
+      alias -s {zip,ZIP}="unzip -l"
+
+      background() {
+        for ((i=2;i<=$#;i++)); do
+          ''${@[1]} ''${@[$i]} &> /dev/null &
+        done
+      }
+
+      git() {
+        if [[ "''${1}" == "root" ]]; then
+          shift
+
+          local ROOT="$(${pkgs.git}/bin/git rev-parse --show-toplevel 2> /dev/null || echo -n .)"
+
+          if [[ $# == 0 ]]; then
+            cd "''${ROOT}"
+          else
+            (cd "''${ROOT}" && eval "''${@}")
+          fi
+        else
+          ${pkgs.git}/bin/git "''${@}"
+        fi
+      }
+
+      ttyper() {
+        command ${pkgs.ttyper}/bin/ttyper --language english1000 --words 50 "''${@}"
+      }
+
+      yt-dlp() {
+        command yt-dlp --paths ~/Videos "$@"
+      }
+
+      # Case insensitive autocompletion.
+      zstyle ":completion:*" matcher-list "" "m:{a-zA-Z}={A-Za-z}" "r:|=*" "l:|=* r:|=*"
+      autoload -Uz compinit && compinit
+
+      bindkey -s ^f "t\n"
+      bindkey -s ^v "nvim\n"
+
+      clear-ls-all() {
+        clear
+        ls -al
+        zle reset-prompt
+      }
+      zle -N clear-ls-all
+
+      clear-git-status() {
+        clear
+        git status
+        zle reset-prompt
+      }
+      zle -N clear-git-status
+
+      clear-tree-2() {
+        clear
+        tree -L 2
+        zle reset-prompt
+      }
+      zle -N clear-tree-2
+
+      clear-tree-3() {
+        clear
+        tree -L 3
+        zle reset-prompt
+      }
+      zle -N clear-tree-3
+
+      bindkey '^G' clear-git-status
+      # bindkey '^H' clear-tree-3
+      # bindkey '^J' clear-tree-2
+      # bindkey '^K' clear-ls-all
+
+      setopt auto_cd
+      setopt auto_pushd
+      setopt pushd_ignore_dups
+      setopt pushdminus
+    '';
+
+    zplug = {
+      enable = true;
+
+      plugins = [
+        {
+          name = "plugin/git";
+          tags = [ "from:oh-my-zsh" ];
+        }
+
+        {
+          name = "plugin/vi-mode";
+          tags = [ "from:oh-my-zsh" ];
+        }
+
+        { name = "olets/zsh-abbr"; }
+
+        { name = "zsh-users/zsh-completions"; }
+        { name = "zsh-users/zsh-syntax-highlighting"; }
+      ];
+    };
+  };
+
+  home.file.".config/zsh-abbr/user-abbreviations".text = builtins.readFile ./zsh/abbreviations.zsh;
+}