added systemd-service and updated readme

README.md

@@ -12,11 +12,11 @@ control your blinkstick via http requests
 
 ## setup 
 
-- clone the project  
-`git clone https://git.velvettear.de/velvettear/blinky.git`
+- clone the project (to '/opt/blinky')
+`git clone https://git.velvettear.de/velvettear/blinky.git /opt/blinky`
 
 - enter the cloned directory  
-`cd blinky`
+`cd /opt/blinky`
 
 - install and switch to a supported node.js version (automatically done via .nvmrc file) 
 `nvm install`
@@ -27,9 +27,25 @@ control your blinkstick via http requests
 - switch back to your system's default node.js version
 `nvm deactivate`
 
-- run it  
+- execute blinky  
 `nvm run 15 blinky.js`
 
+## systemd
+
+**for security reasons it is highly recommended to not run blinky with root permissions!**
+
+- create a new system user  
+`useradd -r -s /usr/bin/nologin blinky`
+
+- symlink the provided systemd-service file and modify it according to your needs  
+`ln -s /opt/blinky/blinky.service /etc/systemd/system/blinky.service`
+
+- reload systemd-services  
+`systemctl daemon-reload`
+
+- enable and start blinky as a systemd-service  
+`systemctl enable --now blinky`
+
 ### scripts
 
 - blinky-feed.sh 

blinky.service

@@ -0,0 +1,11 @@
+[Unit]
+Description=blinky (blinkstick controller)
+
+[Service]
+Type=simple
+User=blinky
+Group=blinky
+ExecStart=nvm run 15 /opt/blinky/blinky.js
+
+[Install]
+WantedBy=multi-user.target