Use pyproject.toml for prod requirements

I accidentally swapped pyproject for the dev requirements instead of
prod 🤦

justfile

@@ -40,14 +40,14 @@ _compile src dst *args: virtualenv
     $BIN/pip-compile --allow-unsafe --generate-hashes --output-file={{ dst }} {{ src }} {{ args }}
 
 
-# update requirements.prod.txt if requirements.prod.in has changed
+# update requirements.prod.txt if pyproject.toml has changed
 requirements-prod *args:
-    "{{ just_executable() }}" _compile requirements.prod.in requirements.prod.txt {{ args }}
+    "{{ just_executable() }}" _compile pyproject.toml requirements.prod.txt {{ args }}
 
 
-# update requirements.dev.txt if pyproject.toml has changed
+# update requirements.dev.txt if requirements.dev.in has changed
 requirements-dev *args: requirements-prod
-    "{{ just_executable() }}" _compile pyproject.toml requirements.dev.txt {{ args }}
+    "{{ just_executable() }}" _compile requirements.dev.in requirements.dev.txt {{ args }}
 
 
 # ensure prod requirements installed and up to date

requirements.dev.in

@@ -0,0 +1,13 @@
+--constraint requirements.prod.txt
+
+# Additional dev requirements
+# To generate a requirements file that includes both prod and dev requirements, run:
+# pip-compile --generate-hashes --output-file=requirements.dev.txt requirements.dev.in
+
+black
+coverage
+pip-tools
+pre-commit
+pytest
+pyyaml
+ruff