diff --git a/.gitignore b/.gitignore
index 5eba6c3..4d77b65 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 *.pdf
 *.log
+images/
diff --git a/assets/banner.png b/assets/banner.png
index d77e278..0e3b603 100644
Binary files a/assets/banner.png and b/assets/banner.png differ
diff --git a/baker/banner.typ b/baker/banner.typ
new file mode 100644
index 0000000..f2729a3
--- /dev/null
+++ b/baker/banner.typ
@@ -0,0 +1,59 @@
+#import "@preview/shadowed:0.1.2": shadowed
+
+#let LE = 10cm
+#let shadow = 0.25cm
+
+#set page(margin: 0pt, width: 2 * LE, height: LE, fill: rgb(0, 0, 0, 0))
+
+#place(
+  dx: 3cm,
+  dy: 1.1cm,
+  rotate(
+    -9deg,
+    shadowed(
+      radius: 0pt,
+      inset: 0pt,
+      blur: shadow,
+      image("./images/21.svg", height: LE * 0.6))))
+
+#place(
+  dx: 1cm,
+  dy: 3.25cm,
+  rotate(
+    -20deg,
+    shadowed(
+      radius: 0pt,
+      inset: 0pt,
+      blur: shadow,
+      image("./images/51.svg", height: LE * 0.55))))
+
+#place(
+  dx: 14cm,
+  dy: 1.5cm,
+  rotate(
+    6deg,
+    shadowed(
+      radius: 0pt,
+      inset: 0pt,
+      blur: shadow,
+      image("./images/41.svg", height: LE * 0.65))))
+
+#place(
+  dx: 11cm,
+  dy: 2cm,
+  rotate(
+    25deg,
+    shadowed(
+      radius: 0pt,
+      inset: 0pt,
+      blur: shadow,
+      image("./images/31.svg", height: LE * 0.6))))
+
+#place(
+  dx: 7cm,
+  dy: 0.75cm,
+  shadowed(
+    radius: 0pt,
+    inset: 0pt,
+    blur: shadow,
+    image("./images/11.svg", height: LE * 0.75)))
diff --git a/baker/run-bake-banner.sh b/baker/run-bake-banner.sh
new file mode 100755
index 0000000..ab5f383
--- /dev/null
+++ b/baker/run-bake-banner.sh
@@ -0,0 +1,12 @@
+#!/bin/bash
+
+mkdir images
+
+# extract images from document created by action
+mutool convert -o images/1.svg "$1" 1
+mutool convert -o images/2.svg "$1" 2
+mutool convert -o images/3.svg "$1" 5
+mutool convert -o images/4.svg "$1" 15
+mutool convert -o images/5.svg "$1" 16
+
+typst compile banner.typ --ppi 220 ../assets/banner.png
diff --git a/baker/shell.nix b/baker/shell.nix
new file mode 100644
index 0000000..b334270
--- /dev/null
+++ b/baker/shell.nix
@@ -0,0 +1,14 @@
+let
+  nixpkgs = fetchTarball "https://github.com/NixOS/nixpkgs/tarball/nixos-unstable";
+  pkgs = import nixpkgs { config = {}; overlays = []; };
+in
+
+pkgs.mkShellNoCC {
+  packages = with pkgs; [
+    python312
+    python312Packages.pyyaml
+    typst
+    typstyle
+    mupdf-headless
+  ];
+}
diff --git a/run-bake-assets.sh b/run-bake-assets.sh
new file mode 100755
index 0000000..1157760
--- /dev/null
+++ b/run-bake-assets.sh
@@ -0,0 +1,6 @@
+#!/bin/bash
+
+cd baker
+
+echo "==> generate banner image"
+nix-shell --run "./run-bake-banner.sh ../example.pdf"