diff --git a/README.md b/README.md
index 8049c2f..18ca913 100644
--- a/README.md
+++ b/README.md
@@ -3,5 +3,7 @@
 ## usage
 
 ```sh
-nix-shell -p pandoc mermaid-filter --command 'pandoc fediversity.md -o fediversity.html -F mermaid-filter'
+nix-shell
+pandoc fediversity.md -o fediversity.html
+pandoc fediversity.html -o fediversity.pdf
 ```
diff --git a/shell.nix b/shell.nix
new file mode 100644
index 0000000..031e504
--- /dev/null
+++ b/shell.nix
@@ -0,0 +1,12 @@
+{
+  pkgs ? import <nixpkgs> { },
+}:
+{
+  shell = pkgs.mkShellNoCC {
+    packages = with pkgs; [
+      pandoc
+      texliveMedium
+      librsvg
+    ];
+  };
+}