diff --git a/pkgs/by-name/i3/i3-back/package.nix b/pkgs/by-name/i3/i3-back/package.nix
new file mode 100644
index 000000000000..e21914435f7a
--- /dev/null
+++ b/pkgs/by-name/i3/i3-back/package.nix
@@ -0,0 +1,35 @@
+{
+  lib,
+  rustPlatform,
+  fetchFromGitHub,
+  testers,
+  i3-back,
+}:
+rustPlatform.buildRustPackage rec {
+  pname = "i3-back";
+  version = "0.3.2";
+
+  src = fetchFromGitHub {
+    owner = "Cretezy";
+    repo = "i3-back";
+    rev = "refs/tags/v${version}";
+    hash = "sha256-xGfX7ttWrcIVhy+MkR5RZr2DCAwIKwGu7zkafHcrjaE=";
+  };
+
+  # The tool needs a nightly compiler.
+  RUSTC_BOOTSTRAP = 1;
+
+  cargoHash = "sha256-Ot8f/58bAlpDSB11l14paCx2yjVoAYaHVIXaOzT1z/c=";
+
+  passthru.tests.version = testers.testVersion { package = i3-back; };
+
+  meta = {
+    description = "i3/Sway utility to switch focus to your last focused window";
+    homepage = "https://github.com/Cretezy/i3-back";
+    changelog = "https://github.com/Cretezy/i3-back/blob/main/CHANGELOG.md";
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ gabyx ];
+    platforms = lib.platforms.linux;
+    mainProgram = "i3-back";
+  };
+}