diff --git a/home/i3/default.nix b/home/i3/default.nix
index 80198d9..bb73770 100644
--- a/home/i3/default.nix
+++ b/home/i3/default.nix
@@ -61,6 +61,7 @@
           playerctl = lib.getExe' pkgs.playerctl "playerctl";
           dmenu = lib.getExe' pkgs.dmenu "dmenu_run";
           refresh_i3status = "killall -SIGUSR1 i3status";
+          boomer = lib.getExe' pkgs.custom.boomer "boomer";
           #   config = pkgs.substituteAll {
           #     inherit term second_term;
           #     src = ./config;
@@ -128,8 +129,9 @@
                 "${modifier}+o" = "exec --no-startup-id ${maim} -s ~/Pictures/screenshots/$(date +%Y-%m-%d-%H-%M-%S).png";
                 "${modifier}+Shift+o" = "exec --no-startup-id ${maim} -s | ${clipboard} -selection clipboard -t image/png";
                 # others
-                "${modifier}+space" = "exec --no-startup-id ${dmenu}";          
-                "${modifier}+b" = "exec --no-startup-id ${yazi}";
+                "${modifier}+space" = "exec --no-startup-id ${dmenu}";
+                "${modifier}+b" = "exec --no-startup-id ${terminal} -e ${yazi}";
+                "${modifier}+z" = "exec --no-startup-id ${boomer}"; # tsoding's zoom
                 # "${modifier}+Shift+Return" = "exec ${second_terminal}";
                 # reset
                 "${modifier}+Shift+e" = null;
diff --git a/packages/boomer/default.nix b/packages/boomer/default.nix
new file mode 100644
index 0000000..6c1f57f
--- /dev/null
+++ b/packages/boomer/default.nix
@@ -0,0 +1,32 @@
+{ lib, stdenv, fetchFromGitHub, nim, libX11, libXrandr, libGL, nim-1_0 }:
+
+let
+  x11-nim = fetchFromGitHub {
+    owner = "nim-lang";
+    repo = "x11";
+    rev = "29aca5e519ebf5d833f63a6a2769e62ec7bfb83a";
+    sha256 = "sha256-jBNsv8meDvF2ySKewbA+rF2XS+gqydZUl1xhEevD15o=";
+  };
+  opengl-nim = fetchFromGitHub {
+    owner = "nim-lang";
+    repo = "opengl";
+    rev = "8e2e098f82dc5eefd874488c37b5830233cd18f4";
+    sha256 = "sha256-v3bMDobYQZqX0anBFIUfZx5q5/vxTHO6PDtKQlf5mgU=";
+  };
+in stdenv.mkDerivation rec {
+  pname = "boomer";
+  version = "unstable-2024-02-08";
+  src = fetchFromGitHub {
+    owner = "tsoding";
+    repo = "boomer";
+    rev = "dfd4e1f5514e2a9d7c7a6429c1c0642c2021e792";
+    sha256 = "sha256-o65/VVxttriA5Qqt35lLKkWIZYS7T4VBBuYdAIGUmx8=";
+  };
+  buildInputs = [ nim-1_0 libX11 libXrandr libGL ];
+  buildPhase = ''
+    HOME=$TMPDIR
+    nim -p:${x11-nim}/ -p:${opengl-nim}/src c -d:release src/boomer.nim
+  '';
+  installPhase = "install -Dt $out/bin src/boomer";
+  fixupPhase = "patchelf --set-rpath ${lib.makeLibraryPath [stdenv.cc.cc libX11 libXrandr libGL]} $out/bin/boomer";
+}
diff --git a/packages/default.nix b/packages/default.nix
index 8fcee4e..7bdeeb1 100644
--- a/packages/default.nix
+++ b/packages/default.nix
@@ -7,4 +7,5 @@ let
   inherit (pkgs) lib callPackage;
 in rec {
   minimal-emacs-d = callPackage ./minimal-emacs-d { };
+  boomer = callPackage ./boomer { };
 }