Update the Makefile

Makefile

@@ -1,16 +1,14 @@
-SHELL=/bin/bash
+SHELL=/usr/bin/env bash
 
 .PHONY: run
 
-run: venv/production
+run: venv
 	( \
-	source venv/bin/activate; \
 	./run.sh; \
 	)
 
-test: venv/development
+test: venv
 	( \
-	source venv/bin/activate; \
 	export DJANGO_SETTINGS_MODULE=sensors.settings.production; \
 	pytest --nomigrations --cov=. --cov-report=html sensors/; \
 	)
@@ -21,23 +19,10 @@ migrations:
 	./manage.py makemigrations collector; \
 	)
 
-venv/development:
-	test -d venv || python3 -m venv venv --system-site-packages
-	( \
-	source venv/bin/activate; \
-	pip3 install -r requirements/development.txt; \
-	)
-	touch venv/development
-
-venv/production:
-	test -d venv || python3 -m venv venv --system-site-packages
-	( \
-	source venv/bin/activate; \
-	pip3 install -Ur requirements/production.txt; \
-	touch venv/bin/activate: \
-	)
+venv:
+	nix build .#venv -o venv
 
 clean:
-	rm -rf venv/
+	rm venv
 	find . \( -name __pycache__ -o -name "*.pyc" \) -delete
 	rm -rf htmlcov/