diff --git a/pkgs/by-name/ad/adaptagrams/package.nix b/pkgs/by-name/ad/adaptagrams/package.nix
new file mode 100644
index 000000000000..e838fd54d8e2
--- /dev/null
+++ b/pkgs/by-name/ad/adaptagrams/package.nix
@@ -0,0 +1,44 @@
+{
+  lib,
+  stdenv,
+  fetchFromGitHub,
+  autoreconfHook,
+  pkg-config,
+  cairomm,
+}:
+
+stdenv.mkDerivation (finalAttrs: {
+  pname = "adaptagrams";
+  version = "0-unstable-2025-10-28";
+
+  strictDeps = true;
+  __structuredAttrs = true;
+
+  src = fetchFromGitHub {
+    owner = "mjwybrow";
+    repo = "adaptagrams";
+    rev = "840ebcff20dbba36ad03a2160edf7cbaf9859984";
+    hash = "sha256-7tzDOass0ea+6vnfyA/jl2k6VWHCMtkE2I/eTeCFiYQ=";
+  };
+
+  sourceRoot = "source/cola";
+
+  nativeBuildInputs = [
+    autoreconfHook
+    pkg-config
+  ];
+
+  buildInputs = [
+    cairomm
+  ];
+
+  meta = {
+    description = "Libraries for constraint-based layout and connector routing for diagrams.";
+    homepage = "https://github.com/mjwybrow/adaptagrams";
+    license = lib.licenses.lgpl21Plus;
+    maintainers = with lib.maintainers; [
+      wishstudio
+    ];
+    platforms = lib.platforms.all;
+  };
+})