diff --git a/nix-conf/home-manager/base/default.nix b/nix-conf/home-manager/base/default.nix
index 14bdb9b..5621907 100644
--- a/nix-conf/home-manager/base/default.nix
+++ b/nix-conf/home-manager/base/default.nix
@@ -1,3 +1,12 @@
 { 
-
+    mkModuleArgs = import ./mkModuleArgs.nix;
+    modules = [
+        ./alacritty.nix
+        ./git.nix
+        ./ssh.nix
+        ./shells.nix
+        {
+            config.programs.home-manager.enable = true;
+        }
+    ];
 }
diff --git a/nix-conf/home-manager/base/git.nix b/nix-conf/home-manager/base/git.nix
index 8665a30..8db840b 100644
--- a/nix-conf/home-manager/base/git.nix
+++ b/nix-conf/home-manager/base/git.nix
@@ -1,3 +1,80 @@
-{
-
+{ config
+, myLib
+, ...
 }:
+let
+  cfg = config.base.git;
+  baseAliases = {
+    a = "add";
+    c = "commit";
+    ca = "commit --amend";
+    cm = "commit -m";
+    lol = "log --graph --decorate --pretty=oneline --abbrev-commit";
+    lola = "log --graph --decorate --pretty=oneline --abbrev-commit --all";
+    sts = "status";
+    co = "checkout";
+    b = "branch";
+  };
+in
+{
+  options.base.git = {
+    aliases = myLib.mkOption {
+      type = myLib.types.attrs;
+      default = { };
+      example = baseAliases;
+      description = ''
+        Additional git aliases. This settings comes with base configuration.
+        Redeclaring the base config will override the values.
+      ''; # TODO: Add baseAliases as string here (builtins.toString doesn't work)
+    };
+    name = myLib.mkOption {
+      type = myLib.types.str;
+      default = "Pegasust";
+      description = "Git username that appears on commits";
+      example = "Pegasust";
+    };
+    email = myLib.mkOption {
+      type = myLib.types.str;
+      default = "pegasucksgg@gmail.com";
+      example = "peagsucksgg@gmail.com";
+      description = "Git email that appears on commits";
+    };
+    ignores = myLib.mkOption {
+      type = myLib.types.listOf myLib.types.str;
+      default = [
+        ".vscode" # vscode settings
+        ".direnv" # .envrc cached outputs
+      ];
+      description = ''
+        .gitignore patterns that are applied in every repository.
+        This is useful for IDE-specific settings.
+      '';
+      example = [ ".direnv" "node_modules" ];
+    };
+    enable = myLib.mkOption {
+      type = myLib.types.bool;
+      default = true;
+      description = ''
+        Enables git
+      '';
+      example = false;
+    };
+    credentialCacheTimeoutSeconds = myLib.mkOption {
+      type = myLib.types.int;
+      default = 3000;
+      description = "Credential cache (in-memory store) for Git in seconds.";
+      example = 3000;
+    };
+  };
+# TODO : anyway to override configuration?
+  config.programs.git = {
+    inherit (cfg) enable ignores; 
+    userName = cfg.name;
+    userEmail = cfg.email;
+    aliases = baseAliases // cfg.aliases;
+    extraConfig = {
+      credential.helper = "cache --timeout=${builtins.toString cfg.credentialCacheTimeoutSeconds}";
+    };
+    lfs.enable = true;
+  };
+}
diff --git a/nix-conf/home-manager/base/neovim.nix b/nix-conf/home-manager/base/neovim.nix
new file mode 100644
index 0000000..e69de29
diff --git a/nix-conf/home-manager/base/shells.nix b/nix-conf/home-manager/base/shells.nix
index e69de29..8f034d2 100644
--- a/nix-conf/home-manager/base/shells.nix
+++ b/nix-conf/home-manager/base/shells.nix
@@ -0,0 +1,89 @@
+# Configurations for shell stuffs.
+# Should probably be decoupled even more
+{ config
+, proj_root
+, myLib
+, ...
+}:
+let cfg = config.base.shells;
+in
+{
+  options.base.shells = {
+    enable = myLib.mkOption {
+      type = myLib.types.bool;
+      description = "Enable umbrella shell configuration";
+      default = true;
+      example = false;
+    };
+    # TODO: Support shell-specific init
+    shellInitExtra = myLib.mkOption {
+      type = myLib.types.str;
+      description = "Extra shell init. The syntax should be sh-compliant";
+      default = "";
+      example = ''
+        # X11 support for WSL
+        export DISPLAY=$(ip route list default | awk '{print $3}'):0
+        export LIBGL_ALWAYS_INDIRECT=1
+      '';
+    };
+    shellAliases = myLib.mkOption {
+      type = myLib.types.attrs;
+      description = "Shell command aliases";
+      default = { };
+      example = {
+        nixGL = "nixGLIntel";
+      };
+    };
+  };
+  config = myLib.mkIf cfg.enable {
+    xdg.configFile."starship.toml".source = "${proj_root}//starship/starship.toml";
+    # nix: Propagates the environment with packages and vars when enter (children of)
+    # a directory with shell.nix-compatible and .envrc
+    programs.direnv = {
+      enable = true;
+      nix-direnv.enable = true;
+      # nix-direnv.enableFlakes = true; # must remove. this will always be supported.
+    };
+    # z <path> as smarter cd
+    programs.zoxide = {
+      enable = true;
+      enableZshIntegration = true;
+    };
+    programs.tmux = {
+      enable = true;
+      extraConfig = builtins.readFile "${proj_root}/tmux/tmux.conf";
+    };
+    programs.exa = {
+      enable = true;
+      enableAliases = true;
+    };
+    programs.starship = {
+      enable = true;
+      enableZshIntegration = true;
+    };
+    programs.fzf.enable = true;
+    programs.bash = {
+      enable = true;
+      enableCompletion = true;
+      initExtra = cfg.shellInitExtra or "";
+    };
+    programs.zsh = {
+      enable = true;
+      enableCompletion = true;
+      enableAutosuggestions = true;
+      shellAliases = {
+        nix-rebuild = "sudo nixos-rebuild switch";
+        hm-switch = "home-manager switch --flake";
+      } // (cfg.shellAliases or { });
+      history = {
+        size = 10000;
+        path = "${config.xdg.dataHome}/zsh/history";
+      };
+      oh-my-zsh = {
+        enable = true;
+        plugins = [ "git" "sudo" "command-not-found" "gitignore" "ripgrep" "rust" ];
+      };
+      initExtra = cfg.shellInitExtra or "";
+    };
+  };
+}
diff --git a/nix-conf/home-manager/base/ssh.nix b/nix-conf/home-manager/base/ssh.nix
index e69de29..aedb1e3 100644
--- a/nix-conf/home-manager/base/ssh.nix
+++ b/nix-conf/home-manager/base/ssh.nix
@@ -0,0 +1,23 @@
+{ config
+, proj_root
+, myLib
+,  ...
+}:
+let cfg = config.base.ssh;
+in
+{
+  options.base.ssh.enable = myLib.mkOption {
+    type = myLib.types.bool;
+    default = true;
+    example = false;
+    description = ''
+      Enables SSH
+    '';
+  };
+  config.programs.ssh = {
+    inherit (cfg) enable;
+    forwardAgent = true;
+    extraConfig = builtins.readFile "${proj_root}/ssh/config";
+  };
+}
+
diff --git a/nix-conf/home-manager/flake.nix b/nix-conf/home-manager/flake.nix
index 83b5fef..0c21c50 100644
--- a/nix-conf/home-manager/flake.nix
+++ b/nix-conf/home-manager/flake.nix
@@ -33,7 +33,8 @@
         config = { allowUnfree = true; };
       };
       # lib = (import ../lib { inherit pkgs; lib = pkgs.lib; });
-      mkModuleArgs = import ./base/mkModuleArgs.nix;
+      base = import ./base;
+      inherit (base) mkModuleArgs;
     in
     {
       homeConfigurations =
@@ -46,7 +47,7 @@
         rec {
           "hungtr" = home-manager.lib.homeManagerConfiguration {
             inherit pkgs;
-            modules = [
+            modules = base.modules ++ [
               ./home.nix
             ];
             # optionally pass inarguments to module
@@ -64,6 +65,12 @@
             inherit pkgs;
             modules = [
               ./home.nix
+              {
+                base.shells = {
+                  shellInitExtra = ''
+                '' + x11_wsl;
+                };
+              }
             ];
             # optionally pass inarguments to module
             # we migrate this from in-place modules to allow flexibility
@@ -73,8 +80,6 @@
               myHome = {
                 username = "nixos";
                 homeDirectory = "/home/nixos";
-                shellInitExtra = ''
-                '' + x11_wsl;
               };
             };
           };
@@ -98,11 +103,15 @@
           # Personal laptop
           hwtr = home-manager.lib.homeManagerConfiguration {
             inherit pkgs;
-            modules = [
+            modules = base.modules ++ [
               ./home.nix
-              ./base/alacritty.nix
               {
                 base.alacritty.font.family = "BitstreamVeraSansMono Nerd Font";
+                base.shells = {
+                  shellAliases = {
+                    nixGL = "nixGLIntel";
+                  };
+                };
               }
             ];
             extraSpecialArgs = mkModuleArgs {
@@ -114,9 +123,6 @@
                   pkgs.nixgl.nixGLIntel
                   pkgs.postman
                 ];
-                shellAliases = {
-                  nixGL = "nixGLIntel";
-                };
               };
             };
           };
diff --git a/nix-conf/home-manager/home.nix b/nix-conf/home-manager/home.nix
index 5b7941f..7273a66 100644
--- a/nix-conf/home-manager/home.nix
+++ b/nix-conf/home-manager/home.nix
@@ -66,39 +66,12 @@ in
 
   ## Configs ## 
   xdg.configFile."nvim/init.lua".source = "${proj_root}//neovim/init.lua";
-  xdg.configFile."starship.toml".source = "${proj_root}//starship/starship.toml";
   xdg.configFile."zk/config.toml".source = "${proj_root}//zk/config.toml";
 
   ## Programs ##
   programs.jq = {
     enable = true;
   };
-  # nix: Propagates the environment with packages and vars when enter (children of)
-  # a directory with shell.nix-compatible and .envrc
-  programs.direnv = {
-    enable = true;
-    nix-direnv.enable = true;
-    # nix-direnv.enableFlakes = true; # must remove. this will always be supported.
-  };
-  # z <path> as smarter cd
-  programs.zoxide = {
-    enable = true;
-    enableZshIntegration = true;
-  };
-  programs.tmux = {
-    enable = true;
-    extraConfig = builtins.readFile "${proj_root}/tmux/tmux.conf";
-  };
-  programs.exa = {
-    enable = true;
-    enableAliases = true;
-  };
-  programs.starship = {
-    enable = true;
-    enableZshIntegration = true;
-  };
-  programs.home-manager.enable = true;
-  programs.fzf.enable = true;
   programs.neovim = {
     enable = true;
     viAlias = true;
@@ -115,66 +88,4 @@ in
     # https://github.com/nix-community/home-manager/pull/3287
     # extraConfig = builtins.readFile "${proj_root}/neovim/init.lua";
   };
-  programs.bash = {
-    enable = true;
-    enableCompletion = true;
-    initExtra = myHome.shellInitExtra or "";
-  };
-  programs.zsh = {
-    enable = true;
-    enableCompletion = true;
-    enableAutosuggestions = true;
-    shellAliases = pkgs.lib.recursiveUpdate {
-      nix-rebuild = "sudo nixos-rebuild switch";
-      hm-switch = "home-manager switch --flake";
-    } (myHome.shellAliases or { });
-    history = {
-      size = 10000;
-      path = "${config.xdg.dataHome}/zsh/history";
-    };
-    oh-my-zsh = {
-      enable = true;
-      plugins = [ "git" "sudo" "command-not-found" "gitignore" "ripgrep" "rust" ];
-    };
-    initExtra = myHome.shellInitExtra or "";
-  };
-  programs.git = {
-    enable = true;
-    lfs.enable = true;
-    aliases = {
-      a = "add";
-      c = "commit";
-      ca = "commit --amend";
-      cm = "commit -m";
-      lol = "log --graph --decorate --pretty=oneline --abbrev-commit";
-      lola = "log --graph --decorate --pretty=oneline --abbrev-commit --all";
-      sts = "status";
-      co = "checkout";
-      b = "branch";
-    };
-    # No idea why this is not appearing in home-manager search
-    # It's in source code, though
-    userName = "pegasust";
-    userEmail = "pegasucksgg@gmail.com";
-    extraConfig = {
-      merge = { tool = "vimdiff"; conflictstyle = "diff3"; };
-    };
-    ignores = [
-      # vscode-related settings
-      ".vscode"
-      # envrc cached outputs
-      ".direnv"
-    ];
-    extraConfig = {
-      # cache credential for 50 minutes (a pomodoro session)
-      credential.helper = "cache --timeout=3000";
-    };
-    # why is this no longer valid?
-    # pull = { rebase=true; };
-  };
-  programs.ssh = {
-    enable = true;
-    forwardAgent = true;
-    extraConfig = builtins.readFile "${proj_root}/ssh/config";
-  };
 }