Add standalone desktop workflow

Makefile

@@ -0,0 +1,51 @@
+APP := jukebox
+APP_PKG := ./cmd/jukebox
+APP_URL := http://127.0.0.1:8080
+
+ROOT_DIR := $(CURDIR)
+DEV_DIR := $(ROOT_DIR)/.tmp
+CONFIG_DIR := $(DEV_DIR)/config
+MEDIA_DIR := $(DEV_DIR)/media
+MOUNT_DIR := $(DEV_DIR)/mount
+CONFIG_PATH := $(CONFIG_DIR)/config.json
+GOCACHE_DIR := $(DEV_DIR)/gocache
+
+.PHONY: run test build release dev-dirs
+
+dev-dirs:
+	mkdir -p "$(CONFIG_DIR)" "$(MEDIA_DIR)" "$(MOUNT_DIR)" "$(GOCACHE_DIR)"
+
+run: dev-dirs
+	@sh -c '\
+		url="$(APP_URL)"; \
+		open_url() { \
+			if command -v open >/dev/null 2>&1; then \
+				open "$$1"; \
+			elif command -v powershell >/dev/null 2>&1; then \
+				powershell -NoProfile -Command "Start-Process '\''$$1'\''" >/dev/null; \
+			elif command -v xdg-open >/dev/null 2>&1; then \
+				xdg-open "$$1" >/dev/null 2>&1; \
+			fi; \
+		}; \
+		for _ in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15; do \
+			if curl -fsS "$$url/health" >/dev/null 2>&1; then \
+				open_url "$$url"; \
+				exit 0; \
+			fi; \
+			sleep 1; \
+		done \
+	' &
+	GOCACHE="$(GOCACHE_DIR)" go run $(APP_PKG) \
+		-config "$(CONFIG_PATH)" \
+		-media "$(MEDIA_DIR)" \
+		-mount "$(MOUNT_DIR)" \
+		-addr ":8080"
+
+test: dev-dirs
+	GOCACHE="$(GOCACHE_DIR)" go test ./...
+
+build: dev-dirs
+	GOCACHE="$(GOCACHE_DIR)" go build -o "$(ROOT_DIR)/$(APP)" $(APP_PKG)
+
+release:
+	./ops/build-release.sh