diff --git a/home/.config/home-manager/fish.nix b/home/.config/home-manager/fish.nix
new file mode 100644
index 00000000..b1f0bece
--- /dev/null
+++ b/home/.config/home-manager/fish.nix
@@ -0,0 +1,53 @@
+{ pkgs, ... }:
+
+{
+  xdg.configFile."fish/fish_variables".source = ../fish/fish_variables;
+  xdg.configFile."fish/functions/fish_prompt.fish".source = ../fish/functions/fish_prompt.fish;
+
+  programs.fish = {
+    enable = true;
+
+    shellInit =
+      ''
+        switch (uname -s)
+        case Linux
+            # Keep this comment
+        case Darwin
+          # nix
+          # https://github.com/NixOS/nix/issues/2280
+          if test -e '/nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh'
+            fenv source '/nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh'
+          end
+        case FreeBSD NetBSD DragonFly
+            # Keep this comment
+        case '*'
+            # Keep this comment
+        end
+
+        # nix
+        if test -e "$HOME/.nix-profile/etc/profile.d/nix.sh"
+            fenv source "$HOME/.nix-profile/etc/profile.d/nix.sh"
+        end
+
+        # home-manager
+        if test -e "$HOME/.nix-profile/etc/profile.d/hm-session-vars.sh"
+            fenv source "$HOME/.nix-profile/etc/profile.d/hm-session-vars.sh"
+        end
+
+        # starship
+        if status is-interactive
+            starship init fish | source
+        end
+      '';
+
+    plugins = [{
+      name = "foreign-env";
+      src = pkgs.fetchFromGitHub {
+        owner = "oh-my-fish";
+        repo = "plugin-foreign-env";
+        rev = "3ee95536106c11073d6ff466c1681cde31001383";
+        sha256 = "sha256-vyW/X2lLjsieMpP9Wi2bZPjReaZBkqUbkh15zOi8T4Y=";
+      };
+    }];
+  };
+}
diff --git a/home/.config/home-manager/home.nix b/home/.config/home-manager/home.nix
index 944d6cef..75d3762a 100644
--- a/home/.config/home-manager/home.nix
+++ b/home/.config/home-manager/home.nix
@@ -4,6 +4,13 @@
 #   - How to get sha256? => assume by `lib.fakeSha256`
 
 {
+  imports = [
+    ./packages.nix
+    ./zsh.nix
+    ./fish.nix
+    ./nushell.nix
+  ];
+
   home.username = lib.mkDefault "kachick";
   # TODO: How to cover lima? The default is /home/kachick.local
   home.homeDirectory = if pkgs.stdenv.hostPlatform.isDarwin then "/Users/${config.home.username}" else "/home/${config.home.username}";
@@ -67,53 +74,6 @@
     package = pkgs.nix;
   };
 
-  programs.fish = {
-    enable = true;
-
-    shellInit =
-      ''
-        switch (uname -s)
-        case Linux
-            # Keep this comment
-        case Darwin
-          # nix
-          # https://github.com/NixOS/nix/issues/2280
-          if test -e '/nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh'
-            fenv source '/nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh'
-          end
-        case FreeBSD NetBSD DragonFly
-            # Keep this comment
-        case '*'
-            # Keep this comment
-        end
-
-        # nix
-        if test -e "$HOME/.nix-profile/etc/profile.d/nix.sh"
-            fenv source "$HOME/.nix-profile/etc/profile.d/nix.sh"
-        end
-
-        # home-manager
-        if test -e "$HOME/.nix-profile/etc/profile.d/hm-session-vars.sh"
-            fenv source "$HOME/.nix-profile/etc/profile.d/hm-session-vars.sh"
-        end
-
-        # starship
-        if status is-interactive
-            starship init fish | source
-        end
-      '';
-
-    plugins = [{
-      name = "foreign-env";
-      src = pkgs.fetchFromGitHub {
-        owner = "oh-my-fish";
-        repo = "plugin-foreign-env";
-        rev = "3ee95536106c11073d6ff466c1681cde31001383";
-        sha256 = "sha256-vyW/X2lLjsieMpP9Wi2bZPjReaZBkqUbkh15zOi8T4Y=";
-      };
-    }];
-  };
-
   programs.readline = {
     enable = true;
     variables = {
@@ -132,15 +92,10 @@
     nix-direnv = {
       enable = true;
     };
-
-    enableZshIntegration = true;
-    enableNushellIntegration = true;
   };
 
   programs.zoxide = {
     enable = true;
-    enableZshIntegration = true;
-    enableNushellIntegration = true;
   };
 
   # https://nixos.wiki/wiki/Home_Manager
@@ -149,8 +104,6 @@
 
   xdg.configFile."home-manager/home.nix".source = ./home.nix;
   xdg.configFile."git/config".source = ../git/config;
-  xdg.configFile."fish/fish_variables".source = ../fish/fish_variables;
-  xdg.configFile."fish/functions/fish_prompt.fish".source = ../fish/functions/fish_prompt.fish;
   xdg.configFile."alacritty/alacritty.yml".source = ../alacritty/alacritty.yml;
 
   # Not under "starship/starship.toml"
@@ -193,163 +146,12 @@
     irb-power_assert
   '';
 
-  # https://nixos.wiki/wiki/Zsh
-  # https://github.com/nix-community/home-manager/blob/master/modules/programs/zsh.nix
-  programs.zsh = {
-    enable = true;
-
-    # How about to point `xdg.configFile`?
-    dotDir = ".config/zsh";
-
-    history = {
-      # in memory
-      size = 100000;
-
-      # in file
-      save = 4200000;
-      path = "${config.xdg.stateHome}/zsh/history";
-
-      ignoreDups = true;
-      ignoreSpace = true;
-
-      extended = true;
-      share = true;
-    };
-
-    historySubstringSearch = {
-      enable = true;
-    };
-    enableSyntaxHighlighting = true;
-    enableAutosuggestions = true;
-    enableCompletion = true;
-
-    # home-manager path will set in `programs.home-manager.enable = true`;
-    envExtra = ''
-      # https://wiki.archlinux.jp/index.php/XDG_Base_Directory
-      # https://www.reddit.com/r/zsh/comments/tpwx9t/zcompcache_vs_zcompdump/
-      zstyle ':completion:*' cache-path "$XDG_CACHE_HOME/zsh/zcompcache"
-
-      if [ -e "$HOME/.nix-profile/etc/profile.d/nix.sh" ]; then . "$HOME/.nix-profile/etc/profile.d/nix.sh"; fi # added by Nix installer
-    '';
-
-    initExtra = ''
-      typeset -g HISTORY_SUBSTRING_SEARCH_HIGHLIGHT_FOUND='fg=blue,bold'
-      typeset -g HISTORY_SUBSTRING_SEARCH_GLOBBING_FLAGS='i'
-      typeset -g HISTORY_SUBSTRING_SEARCH_FUZZY='true'
-
-      setopt correct
-      unsetopt BEEP
-
-      setopt hist_ignore_all_dups
-      setopt hist_reduce_blanks
-      setopt hist_save_no_dups
-      setopt hist_no_store
-
-      eval "$($XDG_DATA_HOME/rtx/bin/rtx activate -s zsh)"
-
-      case ''${OSTYPE} in
-      darwin*)
-        test -e "''${HOME}/.iterm2_shell_integration.zsh" && source "''${HOME}/.iterm2_shell_integration.zsh"
-        ;;
-      esac
-
-      # https://github.com/starship/starship/blob/0d98c4c0b7999f5a8bd6e7db68fd27b0696b3bef/docs/uk-UA/advanced-config/README.md#change-window-title
-      function set_win_title() {
-        echo -ne "\033]0; $(basename "$PWD") \007"
-      }
-      precmd_functions+=(set_win_title)
-
-      zshaddhistory() { whence ''${''${(z)1}[1]} >| /dev/null || return 1 }
-    '';
-
-    # TODO: May move to sessionVariables
-    profileExtra = ''
-      if [[ "$OSTYPE" == darwin* ]]; then
-        export BROWSER='open'
-      fi
-    '';
-  };
-
-  programs.nushell = {
-    enable = true;
-
-    # Do not set `shell_integration: true for now`
-    #   - window title requires `shell_integration: true` - https://github.com/nushell/nushell/issues/2527
-    #   - several terminal requires `shell_integration: false` - https://github.com/nushell/nushell/issues/6214
-    extraConfig = ''
-      let-env config = {
-        show_banner: false
-
-        keybindings: [
-          # https://github.com/nushell/nushell/issues/1616#issuecomment-1386714173
-          {
-            name: fuzzy_history
-            modifier: control
-            keycode: char_r
-            mode: [emacs, vi_normal, vi_insert]
-            event: [
-              {
-                send: ExecuteHostCommand
-                cmd: "commandline (
-                  history
-                    | each { |it| $it.command }
-                    | uniq
-                    | reverse
-                    | str join (char -i 0)
-                    | fzf --read0 --layout=reverse --height=40% -q (commandline)
-                    | decode utf-8
-                    | str trim
-                )"
-              }
-            ]
-          }
-          # Same as above for Up Arrow
-          {
-            name: fuzzy_history
-            modifier: control
-            keycode: Up
-            mode: [emacs, vi_normal, vi_insert]
-            event: [
-              {
-                send: ExecuteHostCommand
-                cmd: "commandline (
-                  history
-                    | each { |it| $it.command }
-                    | uniq
-                    | reverse
-                    | str join (char -i 0)
-                    | fzf --read0 --layout=reverse --height=40% -q (commandline)
-                    | decode utf-8
-                    | str trim
-                )"
-              }
-            ]
-          }
-        ]
-      }
-    '';
-  };
-
   programs.fzf = {
     enable = true;
-
-    # enableShellIntegration = true;
-
-    enableZshIntegration = true;
-
-    # enableFishIntegration  = true;
-
-    # fzf manager does not have nushell integration yet.
-    # https://github.com/nushell/nushell/issues/1616#issuecomment-1386714173 may help you.
   };
 
   programs.starship = {
     enable = true;
-
-    # enableShellIntegration = true;
-    enableZshIntegration = true;
-    # enableFishIntegration = true;
-    enableNushellIntegration = true;
   };
 
   # - Tiny tools by me, they may be rewritten with another language.
@@ -358,83 +160,4 @@
   xdg.dataFile."homemade/bin/updeps".source = ../../../home/.local/share/homemade/bin/updeps.bash;
   xdg.dataFile."homemade/bin/la".source = ../../../home/.local/share/homemade/bin/la.bash;
   xdg.dataFile."homemade/bin/zj".source = ../../../home/.local/share/homemade/bin/zj.bash;
-
-  home.packages = [
-    pkgs.dprint
-    pkgs.gitleaks
-    pkgs.shellcheck
-    pkgs.shfmt
-    pkgs.git
-    pkgs.coreutils
-    pkgs.tig
-    pkgs.tree
-    pkgs.curl
-    pkgs.wget
-    pkgs.zsh
-    # Don't include bash - https://github.com/NixOS/nixpkgs/issues/29960, https://github.com/NixOS/nix/issues/730
-    # pkgs.bash
-    pkgs.fish
-    pkgs.nushell
-    pkgs.starship
-    pkgs.jq
-    pkgs.gh
-    pkgs.direnv
-    pkgs.ripgrep
-    pkgs.fzf
-    pkgs.exa
-    pkgs.bat
-    pkgs.duf
-    pkgs.fd
-    pkgs.du-dust
-    pkgs.procs
-    pkgs.bottom
-    pkgs.tig
-    pkgs.zellij
-    pkgs.nixpkgs-fmt
-    pkgs.nil
-    pkgs.typos
-    pkgs.hyperfine
-    pkgs.zoxide
-    pkgs.difftastic
-
-    # Required in many asdf(rtx) plugins
-    pkgs.unzip
-
-    # Includes follows in each repository if needed, not in global
-    # pkgs.deno
-    # pkgs.rustup
-    # pkgs.go
-    # pkgs.crystal
-    # pkgs.elmPackages.elm
-    # pkgs.gcc
-    # pkgs.sqlite
-    # pkgs.postgresql
-    # pkgs.gnumake
-    # pkgs.cargo-make
-
-    # This section is just a note for my strggle
-    # Often failed to build ruby even if I enabled following dependencies
-    # pkgs.zlib
-    # pkgs.libyaml
-    # pkgs.openssl
-    #
-    # Don't include nixpkgs ruby, because of installing into .nix-profile hides
-    # adhoc use of https://github.com/bobvanderlinden/nixpkgs-ruby
-    # pkgs.ruby
-
-    # As a boardgamer
-    # pkgs.tesseract
-    # pkgs.imagemagick
-    # pkgs.pngquant
-    # pkgs.img2pdf
-    # pkgs.ocrmypdf
-  ] ++ (
-    if pkgs.stdenv.hostPlatform.isDarwin then
-      [ ]
-    else
-      [
-        # Fix missing locales as `locale: Cannot set LC_CTYPE to default locale`
-        pkgs.glibc
-      ]
-  );
 }
diff --git a/home/.config/home-manager/nushell.nix b/home/.config/home-manager/nushell.nix
new file mode 100644
index 00000000..41c9da43
--- /dev/null
+++ b/home/.config/home-manager/nushell.nix
@@ -0,0 +1,70 @@
+{ ... }:
+
+{
+  programs.starship.enableNushellIntegration = true;
+  programs.direnv.enableNushellIntegration = true;
+  programs.zoxide.enableNushellIntegration = true;
+
+  programs.nushell = {
+    enable = true;
+
+    # fzf manager does not have nushell integration yet.
+    # https://github.com/nushell/nushell/issues/1616#issuecomment-1386714173 may help you.
+
+    # Do not set `shell_integration: true for now`
+    #   - window title requires `shell_integration: true` - https://github.com/nushell/nushell/issues/2527
+    #   - several terminal requires `shell_integration: false` - https://github.com/nushell/nushell/issues/6214
+    extraConfig = ''
+      let-env config = {
+        show_banner: false
+
+        keybindings: [
+          # https://github.com/nushell/nushell/issues/1616#issuecomment-1386714173
+          {
+            name: fuzzy_history
+            modifier: control
+            keycode: char_r
+            mode: [emacs, vi_normal, vi_insert]
+            event: [
+              {
+                send: ExecuteHostCommand
+                cmd: "commandline (
+                  history
+                    | each { |it| $it.command }
+                    | uniq
+                    | reverse
+                    | str join (char -i 0)
+                    | fzf --read0 --layout=reverse --height=40% -q (commandline)
+                    | decode utf-8
+                    | str trim
+                )"
+              }
+            ]
+          }
+          # Same as above for Up Arrow
+          {
+            name: fuzzy_history
+            modifier: control
+            keycode: Up
+            mode: [emacs, vi_normal, vi_insert]
+            event: [
+              {
+                send: ExecuteHostCommand
+                cmd: "commandline (
+                  history
+                    | each { |it| $it.command }
+                    | uniq
+                    | reverse
+                    | str join (char -i 0)
+                    | fzf --read0 --layout=reverse --height=40% -q (commandline)
+                    | decode utf-8
+                    | str trim
+                )"
+              }
+            ]
+          }
+        ]
+      }
+    '';
+  };
+}
diff --git a/home/.config/home-manager/packages.nix b/home/.config/home-manager/packages.nix
new file mode 100644
index 00000000..9e409247
--- /dev/null
+++ b/home/.config/home-manager/packages.nix
@@ -0,0 +1,82 @@
+{ pkgs, ... }:
+
+{
+  home.packages = [
+    pkgs.dprint
+    pkgs.gitleaks
+    pkgs.shellcheck
+    pkgs.shfmt
+    pkgs.git
+    pkgs.coreutils
+    pkgs.tig
+    pkgs.tree
+    pkgs.curl
+    pkgs.wget
+    pkgs.zsh
+    # Don't include bash - https://github.com/NixOS/nixpkgs/issues/29960, https://github.com/NixOS/nix/issues/730
+    # pkgs.bash
+    pkgs.fish
+    pkgs.nushell
+    pkgs.starship
+    pkgs.jq
+    pkgs.gh
+    pkgs.direnv
+    pkgs.ripgrep
+    pkgs.fzf
+    pkgs.exa
+    pkgs.bat
+    pkgs.duf
+    pkgs.fd
+    pkgs.du-dust
+    pkgs.procs
+    pkgs.bottom
+    pkgs.tig
+    pkgs.zellij
+    pkgs.nixpkgs-fmt
+    pkgs.nil
+    pkgs.typos
+    pkgs.hyperfine
+    pkgs.zoxide
+    pkgs.difftastic
+
+    # Required in many asdf(rtx) plugins
+    pkgs.unzip
+
+    # Includes follows in each repository if needed, not in global
+    # pkgs.deno
+    # pkgs.rustup
+    # pkgs.go
+    # pkgs.crystal
+    # pkgs.elmPackages.elm
+    # pkgs.gcc
+    # pkgs.sqlite
+    # pkgs.postgresql
+    # pkgs.gnumake
+    # pkgs.cargo-make
+
+    # This section is just a note for my strggle
+    # Often failed to build ruby even if I enabled following dependencies
+    # pkgs.zlib
+    # pkgs.libyaml
+    # pkgs.openssl
+    #
+    # Don't include nixpkgs ruby, because of installing into .nix-profile hides
+    # adhoc use of https://github.com/bobvanderlinden/nixpkgs-ruby
+    # pkgs.ruby
+
+    # As a boardgamer
+    # pkgs.tesseract
+    # pkgs.imagemagick
+    # pkgs.pngquant
+    # pkgs.img2pdf
+    # pkgs.ocrmypdf
+  ] ++ (
+    if pkgs.stdenv.hostPlatform.isDarwin then
+      [ ]
+    else
+      [
+        # Fix missing locales as `locale: Cannot set LC_CTYPE to default locale`
+        pkgs.glibc
+      ]
+  );
+}
diff --git a/home/.config/home-manager/zsh.nix b/home/.config/home-manager/zsh.nix
new file mode 100644
index 00000000..2b317107
--- /dev/null
+++ b/home/.config/home-manager/zsh.nix
@@ -0,0 +1,85 @@
+{ config, ... }:
+
+{
+  programs.starship.enableZshIntegration = true;
+  programs.direnv.enableZshIntegration = true;
+  programs.zoxide.enableZshIntegration = true;
+  programs.fzf.enableZshIntegration = true;
+
+  # https://nixos.wiki/wiki/Zsh
+  # https://github.com/nix-community/home-manager/blob/master/modules/programs/zsh.nix
+  programs.zsh = {
+    enable = true;
+
+    # How about to point `xdg.configFile`?
+    dotDir = ".config/zsh";
+
+    history = {
+      # in memory
+      size = 100000;
+
+      # in file
+      save = 4200000;
+      path = "${config.xdg.stateHome}/zsh/history";
+
+      ignoreDups = true;
+      ignoreSpace = true;
+
+      extended = true;
+      share = true;
+    };
+
+    historySubstringSearch = {
+      enable = true;
+    };
+    enableSyntaxHighlighting = true;
+    enableAutosuggestions = true;
+    enableCompletion = true;
+
+    # home-manager path will set in `programs.home-manager.enable = true`;
+    envExtra = ''
+      # https://wiki.archlinux.jp/index.php/XDG_Base_Directory
+      # https://www.reddit.com/r/zsh/comments/tpwx9t/zcompcache_vs_zcompdump/
+      zstyle ':completion:*' cache-path "$XDG_CACHE_HOME/zsh/zcompcache"
+
+      if [ -e "$HOME/.nix-profile/etc/profile.d/nix.sh" ]; then . "$HOME/.nix-profile/etc/profile.d/nix.sh"; fi # added by Nix installer
+    '';
+
+    initExtra = ''
+      typeset -g HISTORY_SUBSTRING_SEARCH_HIGHLIGHT_FOUND='fg=blue,bold'
+      typeset -g HISTORY_SUBSTRING_SEARCH_GLOBBING_FLAGS='i'
+      typeset -g HISTORY_SUBSTRING_SEARCH_FUZZY='true'
+
+      setopt correct
+      unsetopt BEEP
+
+      setopt hist_ignore_all_dups
+      setopt hist_reduce_blanks
+      setopt hist_save_no_dups
+      setopt hist_no_store
+
+      eval "$($XDG_DATA_HOME/rtx/bin/rtx activate -s zsh)"
+
+      case ''${OSTYPE} in
+      darwin*)
+        test -e "''${HOME}/.iterm2_shell_integration.zsh" && source "''${HOME}/.iterm2_shell_integration.zsh"
+        ;;
+      esac
+
+      # https://github.com/starship/starship/blob/0d98c4c0b7999f5a8bd6e7db68fd27b0696b3bef/docs/uk-UA/advanced-config/README.md#change-window-title
+      function set_win_title() {
+        echo -ne "\033]0; $(basename "$PWD") \007"
+      }
+      precmd_functions+=(set_win_title)
+
+      zshaddhistory() { whence ''${''${(z)1}[1]} >| /dev/null || return 1 }
+    '';
+
+    # TODO: May move to sessionVariables
+    profileExtra = ''
+      if [[ "$OSTYPE" == darwin* ]]; then
+        export BROWSER='open'
+      fi
+    '';
+  };
+}