Add Ubuntu user service support

Makefile

@@ -1,7 +1,12 @@
 PY ?= python3
 VENV ?= .venv
+SERVICE_NAME ?= music-light.service
+SYSTEMD_USER_DIR ?= $(HOME)/.config/systemd/user
+SERVICE_FILE := $(SYSTEMD_USER_DIR)/$(SERVICE_NAME)
+CONFIG_DIR ?= $(HOME)/.config/music-light
+ENV_FILE ?= $(CONFIG_DIR)/env
 
-.PHONY: venv deps run
+.PHONY: venv deps run service-env install-service uninstall-service start-service stop-service restart-service status-service logs-service
 
 venv:
 	$(PY) -m venv $(VENV)
@@ -13,3 +18,32 @@ deps: venv
 run: deps
 	$(VENV)/bin/python luz-musica.py
 
+service-env:
+	install -d $(CONFIG_DIR)
+	test -f $(ENV_FILE) || install -m 600 music-light.env.example $(ENV_FILE)
+
+install-service: deps service-env
+	install -d $(SYSTEMD_USER_DIR)
+	printf '%s\n' '[Unit]' 'Description=Music Light album-art color sync' 'After=graphical-session.target' 'Wants=graphical-session.target' '' '[Service]' 'Type=simple' 'WorkingDirectory=$(CURDIR)' 'Environment=PYTHONUNBUFFERED=1' 'Environment=PLAYERCTL_BIN=/usr/bin/playerctl' 'EnvironmentFile=-%h/.config/music-light/env' 'ExecStart=$(abspath $(VENV))/bin/python $(CURDIR)/luz-musica.py' 'Restart=always' 'RestartSec=5' '' '[Install]' 'WantedBy=default.target' > $(SERVICE_FILE)
+	systemctl --user daemon-reload
+	systemctl --user enable --now $(SERVICE_NAME)
+
+uninstall-service:
+	systemctl --user disable --now $(SERVICE_NAME) || true
+	rm -f $(SERVICE_FILE)
+	systemctl --user daemon-reload
+
+start-service:
+	systemctl --user start $(SERVICE_NAME)
+
+stop-service:
+	systemctl --user stop $(SERVICE_NAME)
+
+restart-service:
+	systemctl --user restart $(SERVICE_NAME)
+
+status-service:
+	systemctl --user status $(SERVICE_NAME)
+
+logs-service:
+	journalctl --user -u $(SERVICE_NAME) -f