diff --git a/flake.lock b/flake.lock
index 26a5ef0..dee9ec7 100644
--- a/flake.lock
+++ b/flake.lock
@@ -362,6 +362,29 @@
         "url": "https://git.pleshevski.ru/mynix/neovim"
       }
     },
+    "mytools": {
+      "inputs": {
+        "flake-utils": [
+          "flake-utils"
+        ],
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1669324519,
+        "narHash": "sha256-GfqQ6TsoxYAFPq84ueLF0HACLtPk3r0FdK0Xk0QzEII=",
+        "ref": "refs/heads/main",
+        "rev": "50bb6b14a57a3953ff35afd189e244adca7d93bb",
+        "revCount": 2,
+        "type": "git",
+        "url": "https://git.pleshevski.ru/mynix/tools"
+      },
+      "original": {
+        "type": "git",
+        "url": "https://git.pleshevski.ru/mynix/tools"
+      }
+    },
     "neoformat": {
       "flake": false,
       "locked": {
@@ -623,6 +646,7 @@
         "home-manager": "home-manager",
         "mailserver": "mailserver",
         "myneovim": "myneovim",
+        "mytools": "mytools",
         "nil": "nil",
         "nixpkgs": "nixpkgs_2",
         "vnetod": "vnetod",
diff --git a/flake.nix b/flake.nix
index 8e1698e..96b2ca4 100644
--- a/flake.nix
+++ b/flake.nix
@@ -30,6 +30,12 @@
 
     # my neovim configuration
     myneovim.url = "git+https://git.pleshevski.ru/mynix/neovim";
+    # my nix tools
+    mytools = {
+      url = "git+https://git.pleshevski.ru/mynix/tools";
+      inputs.nixpkgs.follows = "nixpkgs";
+      inputs.flake-utils.follows = "flake-utils";
+    };
 
     # tool to change .env faster
     vnetod = {
diff --git a/users/jan/default.nix b/users/jan/default.nix
index 729961a..8701955 100644
--- a/users/jan/default.nix
+++ b/users/jan/default.nix
@@ -2,10 +2,11 @@
 
 {
   nixpkgs.overlays = lib.mkAfter [
-    inputs.wired.overlays.default
     inputs.myneovim.overlays.default
-    inputs.vnetod.overlays.default
+    inputs.mytools.overlays.all
     inputs.nil.overlays.default
+    inputs.vnetod.overlays.default
+    inputs.wired.overlays.default
   ];
 
   programs.zsh.enable = true;
diff --git a/users/modules/dev_tools.nix b/users/modules/dev_tools.nix
index fb5f5ee..760d3fd 100644
--- a/users/modules/dev_tools.nix
+++ b/users/modules/dev_tools.nix
@@ -36,6 +36,7 @@ in
     bat # a cat clone with syntax highlighting and git integration
     ripgrep # a fuzzy finder
     vnetod # a tool to change env sections
+    d2 # text to diagram
     gnumake
 
     nixpkgs-fmt # nix formatter