add simple makefile

Makefile

@@ -0,0 +1,23 @@
+.PHONY: format help
+
+# Help system from https://marmelab.com/blog/2016/02/29/auto-documented-makefile.html
+.DEFAULT_GOAL := help
+
+help:
+	@grep -E '^[a-zA-Z0-9_-]+:.*?## .*$$' $(MAKEFILE_LIST) | sort | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-20s\033[0m %s\n", $$1, $$2}'
+
+setup: ## Setup Python virtual environment
+	python3 -m venv .venv
+	.venv/bin/pip install -r requirements.txt
+
+up: ## Bring up backend containers
+	docker-compose up -d
+
+down: ## Bring down backend containers
+	docker-compose down
+
+dev: ## Start development server
+	./bin/dev
+
+dbshell: ## Start interactive session with database
+	docker-compose exec db psql -U wowstash