diff --git a/maintainers/maintainer-list.nix b/maintainers/maintainer-list.nix
index d3f96a51a540e..d693c5cc7d1d9 100644
--- a/maintainers/maintainer-list.nix
+++ b/maintainers/maintainer-list.nix
@@ -13877,6 +13877,13 @@
     githubId = 30194994;
     name = "Felix Nilles";
   };
+  marcin-serwin = {
+    name = "Marcin Serwin";
+    github = "marcin-serwin";
+    githubId = 12128106;
+    email = "marcin@serwin.dev";
+    keys = [ { fingerprint = "F311 FA15 1A66 1875 0C4D  A88D 82F5 C70C DC49 FD1D"; } ];
+  };
   marcovergueira = {
     email = "vergueira.marco@gmail.com";
     github = "marcovergueira";
diff --git a/pkgs/by-name/pl/plakativ/package.nix b/pkgs/by-name/pl/plakativ/package.nix
new file mode 100644
index 0000000000000..b823f631f728d
--- /dev/null
+++ b/pkgs/by-name/pl/plakativ/package.nix
@@ -0,0 +1,33 @@
+{
+  lib,
+  python3Packages,
+  fetchPypi,
+  guiSupport ? true,
+}:
+let
+  pname = "plakativ";
+  version = "0.5.2";
+in
+python3Packages.buildPythonApplication {
+  inherit pname version;
+
+  src = fetchPypi {
+    inherit pname version;
+    hash = "sha256-pRRx/cBgf+HK9NZ1NnakL/dbxGn1UNHJOGvC3I70QGI=";
+  };
+
+  dependencies =
+    with python3Packages;
+    [
+      pymupdf
+    ]
+    ++ lib.optional guiSupport tkinter;
+
+  meta = {
+    description = "Convert a PDF into a large poster that can be printed on multiple smaller pages";
+    mainProgram = "plakativ";
+    homepage = "https://gitlab.mister-muffin.de/josch/plakativ";
+    license = lib.licenses.gpl3Only;
+    maintainers = with lib.maintainers; [ marcin-serwin ];
+  };
+}