diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..e75fa73
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,2 @@
+lupa==2.5
+tomli==2.2.1
diff --git a/shell.nix b/shell.nix
index 662c049..13c53af 100644
--- a/shell.nix
+++ b/shell.nix
@@ -11,7 +11,7 @@
       # nodePackages.pm2mk
       imagemagick
     ]
-    ++ (with python313Packages; [tomli lupa]);
+    ++ (with python313Packages; [tomli lupa pip]);
   shellHook = ''
     export PUPPETEER_SKIP_CHROMIUM_DOWNLOAD=true
     export PUPPETEER_EXECUTABLE_PATH=${pkgs.chromium}/bin/chromium