diff --git a/.gitignore b/.gitignore
index 69d12f6..c18401e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,6 +4,9 @@
 
 !/nix
 /nix/*
+!/nix/wm
+!/nix/shell
+!/nix/progs
 !/nix/home.nix
 !/nix/*.example.nix
 
diff --git a/nix/home.nix b/nix/home.nix
index 5850f1e..801d907 100644
--- a/nix/home.nix
+++ b/nix/home.nix
@@ -4,16 +4,15 @@ let
   secrets = import ./secrets.nix;
 in
 {
-  nixpkgs.overlays = [
-    (self: super: {
-      haskellPackages = super.haskellPackages.override {
-        overrides = hself: hsuper: {
-          xmonad = hsuper.xmonad_0_17_0;
-          xmonad-contrib = hsuper.xmonad-contrib_0_17_0;
-          xmonad-extras = hsuper.xmonad-extras_0_17_0;
-        };
-      };
-    })
+  imports = [
+    ./wm/xmonad.nix
+    ./shell/zsh.nix
+    ./progs/git.nix
+    ./progs/pass.nix
+    ./progs/himalaya.nix
+    ./progs/nvim.nix
+    ./progs/exa.nix
+    ./progs/zoxide.nix
   ];
 
   targets.genericLinux.enable = true;
@@ -30,27 +29,13 @@ in
     options = ["grp:win_space_toggle"];
   };
 
-  # This value determines the Home Manager release that your
-  # configuration is compatible with. This helps avoid breakage
-  # when a new Home Manager release introduces backwards
-  # incompatible changes.
-  #
-  # You can update Home Manager without changing this value. See
-  # the Home Manager release notes for a list of state version
-  # changes in each release.
-  home.stateVersion = "21.11";
-
   home.packages = with pkgs; [
-    # system
-    xclip           # access x clipboard from a console
-    dmenu           # menu for x window system
-    flameshot       # powerful yet simple to use screenshot software
+    # TODO: move packages to separate modules
 
     # tools
     xh              # friendly and fast tool for sending HTTP requests
     fd              # a simple, fast and user-friendly alternative to find
     bat             # a cat clone with syntax highlighting and git integration
-    pass            # cli password manager
 
     # haskell
     stylish-haskell # formatter
@@ -62,38 +47,43 @@ in
     librewolf       # a fork of firefox, focused on privacy, security and freedom
   ];
 
-  home.sessionVariables = 
-    let 
-      pass_data_dir = "${config.home.sessionVariables.XDG_DATA_HOME}/pass";
-    in
-    {
-      EDITOR = "nvim";
-      # for 'pass' tool
-      PASSWORD_STORE_DIR = "${pass_data_dir}/store";
-      PASSWORD_STORE_EXTENSIONS_DIR = "${pass_data_dir}/extensions";
+  # window manager
+  wm.xmonad.enable = true;
+
+  # shell
+  shell.zsh.enable = true;
+
+  # programs
+  progs = {
+    git = with secrets.git; {
+      enable = true;
+      inherit userName;
+      inherit userEmail;
     };
 
+    # password manager
+    pass.enable = true;
+
+    # email manager
+    himalaya.enable = true;
+
+    # editor
+    nvim = {
+      enable = true;
+      default = true;
+    };
+
+    # tools
+    exa.enable = true;
+    zoxide.enable = true;
+  };
+
   accounts.email = {
+    # TODO: add module for email account
     accounts = secrets.emailAccounts;
   };
 
-  programs.himalaya = {
-    enable = true;
-    settings = {
-      default-page-size = 10;
-      downloads-dir = "${config.home.homeDirectory}/downloads/email";
-    };
-  };
-
-  xsession = {
-    enable = true;
-
-    windowManager.xmonad = {
-      enable = true;
-      enableContribAndExtras = true;
-    };
-  };
-
+  # TODO: add module for lock screen
   services.screen-locker = {
     enable = true;
 
@@ -102,112 +92,6 @@ in
     inactiveInterval = 5;
   };
 
-  services.gpg-agent.enable = true;
-
-  # Let Home Manager install and manage itself.
-  programs.home-manager.enable = true;
-
-  # used for pass
-  programs.gpg.enable = true;
-
-  # enable z shell
-  programs.zsh = {
-    enable = true;
-    enableAutosuggestions = true;
-    defaultKeymap = "viins";
-    dotDir = ".config/zsh";
-
-    history = {
-      path = "${config.xdg.dataHome}/zsh/zsh_history";
-      expireDuplicatesFirst = true;
-      ignorePatterns = [
-        "rm *"
-        "kill *"
-      ];
-    };
-
-    oh-my-zsh = {
-      enable = true;
-      theme = "robbyrussell";
-    };
-
-    initExtraFirst = ''
-      # nix
-      if [ -e $HOME/.nix-profile/etc/profile.d/nix.sh ]; then
-        source $HOME/.nix-profile/etc/profile.d/nix.sh;
-      fi
-
-      source $HOME/.nix-profile/etc/profile.d/hm-session-vars.sh
-
-      export NIX_PATH=$HOME/.nix-defexpr/channels''${NIX_PATH:+:$NIX_PATH}
-
-      # ghcup
-      if [ -f "$HOME/.ghcup/env" ]; then
-        source "$HOME/.ghcup/env"
-      fi
-    '';
-
-    shellAliases =
-      let
-        exa = "${pkgs.exa}/bin/exa";
-      in {
-        # exa
-        ls = "${exa} -1";
-        ll = "${exa} -l";
-        lt = "${exa} --tree";
-        # nvim
-        vi  = "nvim";
-        vim = "nvim";
-        # himalaya
-        himp = "himalaya -a personal";
-        himf = "himalaya -a family";
-        himw = "himalaya -a work";
-      };
-  };
-
-  # enable git VCS
-  programs.git = {
-    enable = true;
-    userName = secrets.git.name;
-    userEmail = secrets.git.email;
-    extraConfig = {
-      init.defaultBranch = "main";
-      pull.rebase = true;
-    };
-    aliases = {
-      co = "checkout";
-      cob = "checkout -b";
-      cobf = "checkout -B";
-      st = "status -sb";
-      d = "diff";
-      dc = "diff --cached";
-      aa = "add .";
-      ai = "add -i";
-      c = "commit";
-      cm = "commit -m";
-      ca = "commit --amend";
-      cam = "commit --amend -m";
-      can = "commit --amend --no-edit";
-      p = "push";
-      po = "push origin";
-      pf = "push --force-with-lease";
-      pfo = "push --force-with-lease origin";
-      pl = "pull";
-      plo = "pull origin";
-      rb = "rebase";
-      rbi = "rebase -i";
-    };
-  };
-
-  # replacement for 'ls' written in rust
-  programs.exa.enable = true;
-
-  # a fast cd command that learns your habbits
-  programs.zoxide = {
-    enable = true;
-    enableZshIntegration = true;
-  };
-
   home.file = {
     "scripts" = {
       source = ../scripts;
@@ -226,11 +110,19 @@ in
       # add config for alacritty terminal
       "alacritty/alacritty.yml".source = ../programs/alacritty/alacritty.yml;
 
-      # add config for xmonad window manager
-      # "xmonad/xmonad.hs".source = ../programs/xmonad/xmonad.hs;
-      # "xmobar/xmobar.hs".source = ../programs/xmonad/xmobar.hs;
-
       "stylish-haskell/config.yaml".source = ../programs/stylish-haskell/config.yml;
     };
   };
+
+  # This value determines the Home Manager release that your
+  # configuration is compatible with. This helps avoid breakage
+  # when a new Home Manager release introduces backwards
+  # incompatible changes.
+  #
+  # You can update Home Manager without changing this value. See
+  # the Home Manager release notes for a list of state version
+  # changes in each release.
+  home.stateVersion = "21.11";
+  # Let Home Manager install and manage itself.
+  programs.home-manager.enable = true;
 }
diff --git a/nix/progs/exa.nix b/nix/progs/exa.nix
new file mode 100644
index 0000000..8a499eb
--- /dev/null
+++ b/nix/progs/exa.nix
@@ -0,0 +1,28 @@
+{ lib, config, pkgs, ... }:
+
+with lib;
+
+let
+  cfg = config.progs.exa;
+  bin = "${pkgs.exa}/bin/exa";
+in
+{
+  options.progs.exa = {
+    enable = mkOption {
+      type = types.bool;
+      default = false;
+      description = "Add and configure exa, a modern replacement for ls";
+    };
+  };
+  
+  config = mkIf cfg.enable {
+    programs.exa.enable = true;
+
+    programs.zsh.shellAliases = mkIf config.shell.zsh.enable {
+      ls = "${bin} -1";
+      ll = "${bin} -l";
+      lt = "${bin} --tree";
+    };
+  };
+}
+
diff --git a/nix/progs/git.nix b/nix/progs/git.nix
new file mode 100644
index 0000000..1fd542d
--- /dev/null
+++ b/nix/progs/git.nix
@@ -0,0 +1,61 @@
+{ lib, config, pkgs, ... }:
+
+with lib;
+
+let
+  cfg = config.progs.git;
+in
+{
+  options.progs.git = {
+    enable = mkOption {
+      type = types.bool;
+      default = false;
+      description = "Add git with my personal settings";
+    };
+    
+    userName = mkOption {
+      type = types.str;
+      description = "Set your global name";
+    };
+
+    userEmail = mkOption {
+      type = types.str;
+      description = "Set your global email";
+    };
+  };
+  
+  config = mkIf cfg.enable {
+    programs.git = {
+      enable = true;
+      userName = cfg.userName;
+      userEmail = cfg.userEmail;
+      extraConfig = {
+        init.defaultBranch = "main";
+        pull.rebase = true;
+      };
+      aliases = {
+        co = "checkout";
+        cob = "checkout -b";
+        cobf = "checkout -B";
+        st = "status -sb";
+        d = "diff";
+        dc = "diff --cached";
+        aa = "add .";
+        ai = "add -i";
+        c = "commit";
+        cm = "commit -m";
+        ca = "commit --amend";
+        cam = "commit --amend -m";
+        can = "commit --amend --no-edit";
+        p = "push";
+        po = "push origin";
+        pf = "push --force-with-lease";
+        pfo = "push --force-with-lease origin";
+        pl = "pull";
+        plo = "pull origin";
+        rb = "rebase";
+        rbi = "rebase -i";
+      };
+    };
+  };
+}
diff --git a/nix/progs/himalaya.nix b/nix/progs/himalaya.nix
new file mode 100644
index 0000000..9e1ea2a
--- /dev/null
+++ b/nix/progs/himalaya.nix
@@ -0,0 +1,35 @@
+{ lib, config, pkgs, ... }:
+
+with lib;
+
+let
+  cfg = config.progs.himalaya;
+  bin = "${pkgs.himalaya}/bin/exa";
+in
+{
+  options.progs.himalaya = {
+    enable = mkOption {
+      type = types.bool;
+      default = false;
+      description = "Add himalaya with my personal configuration";
+    };
+  };
+  
+  config = mkIf cfg.enable {
+    programs.himalaya = {
+      enable = true;
+      settings = {
+        default-page-size = 10;
+        downloads-dir = "${config.home.homeDirectory}/downloads/email";
+      };
+    };
+
+    programs.zsh.shellAliases = mkIf config.shell.zsh.enable {
+      him = bin;
+      himp = "${bin} -a personal";
+      himf = "${bin} -a family";
+      himw = "${bin} -a work";
+    };
+  };
+}
+
diff --git a/nix/progs/nvim.nix b/nix/progs/nvim.nix
new file mode 100644
index 0000000..e451b22
--- /dev/null
+++ b/nix/progs/nvim.nix
@@ -0,0 +1,37 @@
+{ lib, config, pkgs, ... }:
+
+with lib;
+
+let
+  cfg = config.progs.nvim;
+  bin = "nvim";
+in
+{
+  options.progs.nvim = {
+    enable = mkOption {
+      type = types.bool;
+      default = false;
+      description = "Add and configure exa, a modern replacement for ls";
+    };
+
+    default = mkOption {
+      type = types.bool;
+      default = false;
+      description = "Set neovim as default editor";
+    };
+  };
+  
+  config = mkIf cfg.enable {
+    # TODO: install and configure neovim from home-manager
+
+    home.sessionVariables = mkIf cfg.default {
+      EDITOR = bin;
+    };
+
+    programs.zsh.shellAliases = mkIf config.shell.zsh.enable {
+      vi = bin;
+      vim = bin;
+    };
+  };
+}
+
diff --git a/nix/progs/pass.nix b/nix/progs/pass.nix
new file mode 100644
index 0000000..9b98a28
--- /dev/null
+++ b/nix/progs/pass.nix
@@ -0,0 +1,31 @@
+{ lib, config, pkgs, ... }:
+
+with lib;
+
+let
+  cfg = config.progs.pass;
+  pass_data_dir = "${config.home.sessionVariables.XDG_DATA_HOME}/pass";
+in
+{
+  options.progs.pass = {
+    enable = mkOption {
+      type = types.bool;
+      default = false;
+      description = "Add and configure pass tool to manager your passwords";
+    };
+  };
+  
+  config = mkIf cfg.enable {
+    home.packages = [pkgs.pass];
+
+    home.sessionVariables = {
+      PASSWORD_STORE_DIR = "${pass_data_dir}/store";
+      PASSWORD_STORE_EXTENSIONS_DIR = "${pass_data_dir}/extensions";
+    };
+
+    programs.gpg.enable = true;
+
+    services.gpg-agent.enable = true;
+  };
+}
+
diff --git a/nix/progs/zoxide.nix b/nix/progs/zoxide.nix
new file mode 100644
index 0000000..50fe219
--- /dev/null
+++ b/nix/progs/zoxide.nix
@@ -0,0 +1,24 @@
+{ lib, config, pkgs, ... }:
+
+with lib;
+
+let
+  cfg = config.progs.zoxide;
+in
+{
+  options.progs.zoxide = {
+    enable = mkOption {
+      type = types.bool;
+      default = false;
+      description = "Add zoxide, a modern replacement for cd";
+    };
+  };
+  
+  config = mkIf cfg.enable {
+    programs.zoxide = {
+      enable = true;
+      enableZshIntegration = config.shell.zsh.enable;
+    };
+  };
+}
+
diff --git a/nix/secrets.example.nix b/nix/secrets.example.nix
index 9bcb5e8..e6a184b 100644
--- a/nix/secrets.example.nix
+++ b/nix/secrets.example.nix
@@ -5,7 +5,7 @@
   };
 
   git = {
-    name = "Bob Ross";
-    email = "bross@example.com";
+    userName = "Bob Ross";
+    userEmail = "bross@example.com";
   };
 }
diff --git a/nix/shell/zsh.nix b/nix/shell/zsh.nix
new file mode 100644
index 0000000..9f525f9
--- /dev/null
+++ b/nix/shell/zsh.nix
@@ -0,0 +1,56 @@
+{ lib, config, pkgs, ... }:
+
+with lib;
+
+let
+  cfg = config.shell.zsh;
+in
+{
+  options.shell.zsh = {
+    enable = mkOption {
+      type = types.bool;
+      default = false;
+      description = "Add z shell";
+    };
+  };
+  
+  config = mkIf cfg.enable {
+    programs.zsh = {
+      enable = true;
+      enableAutosuggestions = true;
+      defaultKeymap = "viins";
+      dotDir = ".config/zsh";
+
+      history = {
+        path = "${config.xdg.dataHome}/zsh/zsh_history";
+        expireDuplicatesFirst = true;
+        ignorePatterns = [
+          "rm *"
+          "kill *"
+        ];
+      };
+
+      oh-my-zsh = {
+        enable = true;
+        theme = "robbyrussell";
+      };
+
+      initExtraFirst = ''
+        # nix
+        if [ -e $HOME/.nix-profile/etc/profile.d/nix.sh ]; then
+          source $HOME/.nix-profile/etc/profile.d/nix.sh;
+        fi
+
+        source $HOME/.nix-profile/etc/profile.d/hm-session-vars.sh
+
+        export NIX_PATH=$HOME/.nix-defexpr/channels''${NIX_PATH:+:$NIX_PATH}
+
+        # ghcup
+        if [ -f "$HOME/.ghcup/env" ]; then
+          source "$HOME/.ghcup/env"
+        fi
+      '';
+    };
+  };
+}
+
diff --git a/nix/wm/xmonad.nix b/nix/wm/xmonad.nix
new file mode 100644
index 0000000..6a0fb00
--- /dev/null
+++ b/nix/wm/xmonad.nix
@@ -0,0 +1,51 @@
+{ lib, config, pkgs, ...}:
+
+with lib;
+
+let
+  cfg = config.wm.xmonad;
+in
+{
+  options.wm.xmonad = {
+    enable = mkOption {
+      type = types.bool;
+      default = false;
+      description = "Enable xsessions and xmonad window manager";
+    };
+  };
+
+  config = mkIf cfg.enable {
+    nixpkgs.overlays = [
+      (self: super: {
+        haskellPackages = super.haskellPackages.override {
+          overrides = hself: hsuper: {
+            xmonad = hsuper.xmonad_0_17_0;
+            xmonad-contrib = hsuper.xmonad-contrib_0_17_0;
+            xmonad-extras = hsuper.xmonad-extras_0_17_0;
+          };
+        };
+      })
+    ];
+
+    home.packages = with pkgs; [
+      xclip           # access x clipboard from a console
+      dmenu           # menu for x window system
+      flameshot       # powerful yet simple to use screenshot software
+    ];
+
+    xsession = {
+      enable = true;
+
+      windowManager.xmonad = {
+        enable = true;
+        enableContribAndExtras = true;
+      };
+    };
+
+    xdg.configFile = {
+      # add config for xmonad window manager
+      # "xmonad/xmonad.hs".source = ../programs/xmonad/xmonad.hs;
+      # "xmobar/xmobar.hs".source = ../programs/xmonad/xmobar.hs;
+    };
+  };
+}