diff --git a/source/shebangs/bash-with-nix-pkg/my-script.sh b/source/shebangs/bash-with-nix-pkg/my-script.sh
new file mode 100755
index 0000000..aa12709
--- /dev/null
+++ b/source/shebangs/bash-with-nix-pkg/my-script.sh
@@ -0,0 +1,3 @@
+#! /usr/bin/env nix-shell
+#! nix-shell -i bash -p cowsay
+cowsay "Pretty cool, huh?"
diff --git a/source/shebangs/python-with-nix-pkg/my-script.sh b/source/shebangs/python-with-nix-pkg/my-script.sh
new file mode 100755
index 0000000..e66531b
--- /dev/null
+++ b/source/shebangs/python-with-nix-pkg/my-script.sh
@@ -0,0 +1,11 @@
+#! /usr/bin/env nix-shell
+#! nix-shell -i python3 -p python3Packages.html-sanitizer
+
+from html_sanitizer import Sanitizer
+sanitizer = Sanitizer()  # default configuration
+
+original='<span style="font-weight:bold">some text</span>'
+print('original: ', original)
+
+sanitized=sanitizer.sanitize(original)
+print('sanitized: ', sanitized)