diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..3550a30
--- /dev/null
+++ b/.envrc
@@ -0,0 +1 @@
+use flake
diff --git a/.gitignore b/.gitignore
index e2f5dd2..9f05b1e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,3 @@
-result
\ No newline at end of file
+.direnv
+.vscode
+result
diff --git a/flake.nix b/flake.nix
index e15efa8..d4d7633 100644
--- a/flake.nix
+++ b/flake.nix
@@ -55,23 +55,42 @@
   outputs = { self, ... }@inputs:
     with inputs;
     let
+      homeConfigurations = import ./home;
+      sharedModules = [
+        self.homeManagerModules
+        inputs.nix-index-database.hmModules.nix-index
+      ];
       mkHome = user: host: { config, system, ... }: {
         imports = [
+          home-manager.nixosModules.home-manager
           {
-            home-manager.useGlobalPkgs = true;
-            home-manager.useUserPackages = true;
-            home-manager.users.xin = import ./home/${user}/${host};
-            home-manager.extraSpecialArgs = { inherit inputs system; };
+            home-manager = {
+              inherit sharedModules;
+              useGlobalPkgs = true;
+              useUserPackages = true;
+              extraSpecialArgs = { inherit inputs; };
+            };
+            home-manager.users.${user} = homeConfigurations.${user}.${host};
           }
-          self.homeManagerModules
         ];
       };
+      mkHomeConfiguration = user: settings: {
+        name = user;
+        value = home-manager.lib.homeManagerConfiguration {
+          pkgs = import nixpkgs { system = "x86_64-linux"; };
+          modules = [
+            self.homeManagerModules
+          ] ++ sharedModules;
+          specialArgs = {
+            inherit inputs;
+          };
+        };
+      };
       mkNixos = { system, modules, specialArgs ? {}}: nixpkgs.lib.nixosSystem {
         inherit system;
         specialArgs = specialArgs // { inherit inputs system; };
         modules = [
           self.nixosModules.default
-          home-manager.nixosModules.home-manager
           nur.nixosModules.nur
         ] ++ modules;
       };
@@ -81,6 +100,8 @@
       nixosModules.default = import ./modules/nixos;
       homeManagerModules = import ./modules/home-manager;
 
+      homeConfigurations = listToAttrs [ (mkHomeConfiguration "xin" "calcite") ];
+
       colmenaHive = colmena.lib.makeHive {
           meta = {
               nixpkgs = import nixpkgs {
@@ -166,5 +187,14 @@
           }
         ];
       }).config.system.build.sdImage;
-    };
+    } // flake-utils.lib.eachDefaultSystem (system: 
+      let pkgs = nixpkgs.legacyPackages.${system}; in
+      {
+        devShells = {
+          default = pkgs.mkShell {
+            packages = with pkgs; [ git colmena ];
+          };
+        };
+      }
+    );
 }
diff --git a/home/default.nix b/home/default.nix
new file mode 100644
index 0000000..0c683f6
--- /dev/null
+++ b/home/default.nix
@@ -0,0 +1,5 @@
+{
+  xin = {
+    calcite = import ./xin/calcite.nix;
+  };
+}
\ No newline at end of file
diff --git a/home/xin/alacritty.nix b/home/xin/alacritty.nix
deleted file mode 100644
index f34ff67..0000000
--- a/home/xin/alacritty.nix
+++ /dev/null
@@ -1,19 +0,0 @@
-{ config, ... }: {
-  programs.alacritty = {
-    enable = true;
-    settings = {
-      shell = {
-        program = config.programs.zellij.package + "/bin/zellij";
-        args = [
-          "attach"
-          "-c"
-        ];
-      };
-      font.size = 10.0;
-      window = {
-        resize_increments = true;
-        dynamic_padding = true;
-      };
-    };
-  };
-}
diff --git a/home/xin/calcite/default.nix b/home/xin/calcite.nix
similarity index 67%
rename from home/xin/calcite/default.nix
rename to home/xin/calcite.nix
index 544e438..31c9811 100644
--- a/home/xin/calcite/default.nix
+++ b/home/xin/calcite.nix
@@ -1,10 +1,7 @@
-{ inputs, config, pkgs, ... }:
+{ config, pkgs, ... }:
 {
   imports = [
-    ../common
-    ../vscode.nix
-    ../alacritty.nix
-    inputs.nix-index-database.hmModules.nix-index
+    ./common
   ];
 
   programs.nix-index-database.comma.enable = true;
@@ -35,10 +32,13 @@
     remmina
   ];
 
-  # custom-hm = {
-  #   fish = { enable = true; };
-  #   git = { enable = true; };
-  #   neovim = { enable = true; };
-  #   zellij = { enable = true; };
-  # };
+  custom-hm = {
+    alacritty = { enable = true; };
+    direnv = { enable = true; };
+    fish = { enable = true; };
+    git = { enable = true; };
+    neovim = { enable = true; };
+    vscode = { enable = true; };
+    zellij = { enable = true; };
+  };
 }
diff --git a/home/xin/vscode.nix b/home/xin/vscode.nix
deleted file mode 100644
index a0b9eac..0000000
--- a/home/xin/vscode.nix
+++ /dev/null
@@ -1,133 +0,0 @@
-{ config, pkgs, inputs, system, ... }:
-{
-  home.packages = with pkgs; [
-    pkgs.wl-clipboard-x11
-  ];
-  programs.vscode = {
-    enable = true;
-    enableUpdateCheck = false;
-    enableExtensionUpdateCheck = false;
-    mutableExtensionsDir = false;
-    extensions = (with inputs.nix-vscode-extensions.extensions.${system}.vscode-marketplace; [
-      arrterian.nix-env-selector
-
-      bbenoist.nix
-      ms-azuretools.vscode-docker
-      ms-vscode-remote.remote-ssh
-      vscodevim.vim
-      github.vscode-pull-request-github
-      eamodio.gitlens
-      gruntfuggly.todo-tree # todo highlight
-
-      # Language support
-      # Python
-      ms-python.python
-      # Markdown
-      davidanson.vscode-markdownlint
-      # C/C++
-      ms-vscode.cmake-tools
-      llvm-vs-code-extensions.vscode-clangd
-      # Nix
-      jnoortheen.nix-ide
-      # Latex
-      james-yu.latex-workshop
-      # Vue
-      vue.volar
-
-      ms-vscode-remote.remote-ssh-edit
-      mushan.vscode-paste-image
-    ]) ++ (with pkgs.vscode-extensions; [
-      # Rust
-      rust-lang.rust-analyzer
-      github.copilot
-    ]);
-    userSettings = {
-      "workbench.colorTheme" = "Default Dark+";
-      "terminal.integrated.sendKeybindingsToShell" = true;
-      "extensions.ignoreRecommendations" = true;
-      "files.autoSave" = "afterDelay";
-      "editor.inlineSuggest.enabled" = true;
-      "editor.rulers" = [
-        80
-      ];
-      "editor.mouseWheelZoom" = true;
-      "git.autofetch" = true;
-      "window.zoomLevel" = -1;
-
-      "nix.enableLanguageServer" = true;
-
-      "latex-workshop.latex.autoBuild.run" = "never";
-      "latex-workshop.latex.tools" = [
-        {
-          "name" = "xelatex";
-          "command" = "xelatex";
-          "args" = [
-            "-synctex=1"
-            "-interaction=nonstopmode"
-            "-file-line-error"
-            "-pdf"
-            "%DOCFILE%"
-          ];
-        }
-        {
-          "name" = "pdflatex";
-          "command" = "pdflatex";
-          "args" = [
-            "-synctex=1"
-            "-interaction=nonstopmode"
-            "-file-line-error"
-            "%DOCFILE%"
-          ];
-        }
-        {
-          "name" = "bibtex";
-          "command" = "bibtex";
-          "args" = [
-            "%DOCFILE%"
-          ];
-        }
-      ];
-      "latex-workshop.latex.recipes" = [
-        {
-          "name" = "xelatex";
-          "tools" = [
-            "xelatex"
-          ];
-        }
-        {
-          "name" = "pdflatex";
-          "tools" = [
-            "pdflatex"
-          ];
-        }
-        {
-          "name" = "xe->bib->xe->xe";
-          "tools" = [
-            "xelatex"
-            "bibtex"
-            "xelatex"
-            "xelatex"
-          ];
-        }
-        {
-          "name" = "pdf->bib->pdf->pdf";
-          "tools" = [
-            "pdflatex"
-            "bibtex"
-            "pdflatex"
-            "pdflatex"
-          ];
-        }
-      ];
-      "[latex]" = {
-        "editor.formatOnPaste" = false;
-        "editor.suggestSelection" = "recentlyusedbyprefix";
-        "editor.wordWrap" = "bounded";
-        "editor.wordWrapColumn" = 80;
-        "editor.unicodeHighlight.ambiguousCharacters" = false;
-      };
-      # Extension vscode-paste-image
-      "pasteImage.path" = "\${currentFileDir}/.assets";
-    };
-  };
-}
diff --git a/machines/vscode.nix b/machines/vscode.nix
deleted file mode 100644
index 0ec1e87..0000000
--- a/machines/vscode.nix
+++ /dev/null
@@ -1,36 +0,0 @@
-{ config, lib, pkgs, ... }:
-{
-  environment.systemPackages = [
-    (pkgs.vscode-with-extensions.override {
-      vscodeExtensions = with pkgs.vscode-extensions; [
-        arrterian.nix-env-selector
-
-        bbenoist.nix
-        ms-azuretools.vscode-docker
-        ms-vscode-remote.remote-ssh
-        vscodevim.vim
-        github.copilot
-        github.vscode-pull-request-github
-        eamodio.gitlens
-        gruntfuggly.todo-tree # todo highlight
-
-        vadimcn.vscode-lldb # debugger
-
-        # Language support
-        ms-python.python
-        davidanson.vscode-markdownlint
-        llvm-vs-code-extensions.vscode-clangd
-        jnoortheen.nix-ide
-        james-yu.latex-workshop
-        rust-lang.rust-analyzer
-      ] ++ pkgs.vscode-utils.extensionsFromVscodeMarketplace [
-        {
-          name = "remote-ssh-edit";
-          publisher = "ms-vscode-remote";
-          version = "0.47.2";
-          sha256 = "1hp6gjh4xp2m1xlm1jsdzxw9d8frkiidhph6nvl24d0h8z34w49g";
-        }
-      ];
-    })
-  ];
-}
diff --git a/modules/home-manager/alacritty.nix b/modules/home-manager/alacritty.nix
new file mode 100644
index 0000000..7e217d8
--- /dev/null
+++ b/modules/home-manager/alacritty.nix
@@ -0,0 +1,31 @@
+{ config, lib, ... }:
+with lib;
+
+let
+  cfg = config.custom-hm.alacritty;
+in
+{
+  options.custom-hm.alacritty = {
+    enable = mkEnableOption "alacritty";
+  };
+
+  config = mkIf cfg.enable {
+    programs.alacritty = {
+      enable = true;
+      settings = {
+        shell = {
+          program = config.programs.zellij.package + "/bin/zellij";
+          args = [
+            "attach"
+            "-c"
+          ];
+        };
+        font.size = 10.0;
+        window = {
+          resize_increments = true;
+          dynamic_padding = true;
+        };
+      };
+    };
+  };
+}
diff --git a/modules/home-manager/default.nix b/modules/home-manager/default.nix
index 6ab8a89..23f5c24 100644
--- a/modules/home-manager/default.nix
+++ b/modules/home-manager/default.nix
@@ -1,10 +1,12 @@
-{ config, pkgs, ... }:
 {
   imports = [
+    ./alacritty.nix
+    ./direnv.nix
     ./fish.nix
     ./git.nix
     ./tmux.nix
     ./vim.nix
+    ./vscode.nix
     ./zellij.nix
   ];
 }
\ No newline at end of file
diff --git a/modules/home-manager/direnv.nix b/modules/home-manager/direnv.nix
new file mode 100644
index 0000000..850534d
--- /dev/null
+++ b/modules/home-manager/direnv.nix
@@ -0,0 +1,18 @@
+{ config, lib, ... }: 
+with lib;
+
+let
+  cfg = config.custom-hm.direnv;
+in
+{
+  options.custom-hm.direnv = {
+    enable = mkEnableOption "direnv";
+  };
+  config = {
+    programs = mkIf config.custom-hm.direnv.enable {
+      direnv = {
+        enable = true;
+      };
+    };
+  };
+}
\ No newline at end of file
diff --git a/modules/home-manager/fish.nix b/modules/home-manager/fish.nix
index 54dda10..0b002e0 100644
--- a/modules/home-manager/fish.nix
+++ b/modules/home-manager/fish.nix
@@ -6,7 +6,7 @@ let
   cfg = config.custom-hm.fish;
 in
 {
-  options = {
+  options.custom-hm.fish = {
     enable = mkEnableOption "fish";
     plugins = mkOption {
       type = types.listOf types.str;
@@ -30,9 +30,9 @@ in
     programs.fish = mkIf cfg.enable {
       enable = true;
       plugins = with pkgs; filter (
-        e: hasAttr e.name builtins.listToAttrs # { "xxx" = true; }
+        e: hasAttr e.name (builtins.listToAttrs # { "xxx" = true; }
            (map (p: { name = p; value = true; }) cfg.plugins) # { name = "xxx"; value = true; }
-        ) [
+      )) [
         {
           name = "pisces";
           src = fishPlugins.pisces.src;
diff --git a/modules/home-manager/git.nix b/modules/home-manager/git.nix
index 2eefe65..2b19136 100644
--- a/modules/home-manager/git.nix
+++ b/modules/home-manager/git.nix
@@ -6,7 +6,7 @@ let
   cfg = config.custom-hm.git;
 in
 {
-  options = {
+  options.custom-hm.git = {
     enable = mkEnableOption "Enable git configuration";
   };
   config = {
diff --git a/modules/home-manager/vim.nix b/modules/home-manager/vim.nix
index 0c1f886..d818132 100644
--- a/modules/home-manager/vim.nix
+++ b/modules/home-manager/vim.nix
@@ -6,7 +6,7 @@ let
   cfg = config.custom-hm.neovim;
 in
 {
-  options = {
+  options.custom-hm.neovim = {
     enable = mkEnableOption "neovim configurations";
   };
   config = mkIf cfg.enable {
diff --git a/modules/home-manager/vscode.nix b/modules/home-manager/vscode.nix
new file mode 100644
index 0000000..dc9cbc1
--- /dev/null
+++ b/modules/home-manager/vscode.nix
@@ -0,0 +1,143 @@
+{ inputs, config, lib, pkgs, ... }:
+with lib;
+
+let
+  cfg = config.custom-hm.vscode;
+in
+{
+  options.custom-hm.vscode = { 
+    enable = mkEnableOption "Vscode config";
+  };
+  config = mkIf cfg.enable {
+    home.packages = with pkgs; [
+      pkgs.wl-clipboard-x11
+    ];
+    programs.vscode = {
+      enable = true;
+      enableUpdateCheck = false;
+      enableExtensionUpdateCheck = false;
+      mutableExtensionsDir = true;
+      extensions = (with inputs.nix-vscode-extensions.extensions.${pkgs.system}.vscode-marketplace; [
+        mkhl.direnv
+
+        bbenoist.nix
+        ms-azuretools.vscode-docker
+        ms-vscode-remote.remote-ssh
+        vscodevim.vim
+        github.vscode-pull-request-github
+        eamodio.gitlens
+        gruntfuggly.todo-tree # todo highlight
+
+        # Language support
+        # Python
+        ms-python.python
+        # Markdown
+        davidanson.vscode-markdownlint
+        # C/C++
+        ms-vscode.cmake-tools
+        llvm-vs-code-extensions.vscode-clangd
+        # Nix
+        jnoortheen.nix-ide
+        # Latex
+        james-yu.latex-workshop
+        # Vue
+        vue.volar
+        # Scale / chisel
+        scalameta.metals
+
+        ms-vscode-remote.remote-ssh-edit
+        mushan.vscode-paste-image
+      ]) ++ (with pkgs.vscode-extensions; [
+        # Rust
+        rust-lang.rust-analyzer
+        github.copilot
+      ]);
+      userSettings = {
+        "workbench.colorTheme" = "Default Dark+";
+        "terminal.integrated.sendKeybindingsToShell" = true;
+        "extensions.ignoreRecommendations" = true;
+        "files.autoSave" = "afterDelay";
+        "editor.inlineSuggest.enabled" = true;
+        "editor.rulers" = [
+          80
+        ];
+        "editor.mouseWheelZoom" = true;
+        "git.autofetch" = true;
+        "window.zoomLevel" = -1;
+
+        "nix.enableLanguageServer" = true;
+
+        "latex-workshop.latex.autoBuild.run" = "never";
+        "latex-workshop.latex.tools" = [
+          {
+            "name" = "xelatex";
+            "command" = "xelatex";
+            "args" = [
+              "-synctex=1"
+              "-interaction=nonstopmode"
+              "-file-line-error"
+              "-pdf"
+              "%DOCFILE%"
+            ];
+          }
+          {
+            "name" = "pdflatex";
+            "command" = "pdflatex";
+            "args" = [
+              "-synctex=1"
+              "-interaction=nonstopmode"
+              "-file-line-error"
+              "%DOCFILE%"
+            ];
+          }
+          {
+            "name" = "bibtex";
+            "command" = "bibtex";
+            "args" = [
+              "%DOCFILE%"
+            ];
+          }
+        ];
+        "latex-workshop.latex.recipes" = [
+          {
+            "name" = "xelatex";
+            "tools" = [
+              "xelatex"
+            ];
+          }
+          {
+            "name" = "pdflatex";
+            "tools" = [
+              "pdflatex"
+            ];
+          }
+          {
+            "name" = "xe->bib->xe->xe";
+            "tools" = [
+              "xelatex"
+              "bibtex"
+              "xelatex"
+              "xelatex"
+            ];
+          }
+          {
+            "name" = "pdf->bib->pdf->pdf";
+            "tools" = [
+              "pdflatex"
+              "bibtex"
+              "pdflatex"
+              "pdflatex"
+            ];
+          }
+        ];
+        "[latex]" = {
+          "editor.formatOnPaste" = false;
+          "editor.suggestSelection" = "recentlyusedbyprefix";
+          "editor.wordWrap" = "bounded";
+          "editor.wordWrapColumn" = 80;
+          "editor.unicodeHighlight.ambiguousCharacters" = false;
+        };
+      };
+    };
+  };
+}
diff --git a/modules/home-manager/zellij.nix b/modules/home-manager/zellij.nix
index b795130..16fa32f 100644
--- a/modules/home-manager/zellij.nix
+++ b/modules/home-manager/zellij.nix
@@ -6,7 +6,7 @@ let
   cfg = config.custom-hm.zellij;
 in
 {
-  options = {
+  options.custom-hm.zellij = {
     enable = mkEnableOption "zellij configurations";
   };
   config = {