add dap-update script, add i3 & alacritty shortcut for bold font

raspberry/metrics.md

@@ -0,0 +1,28 @@
+# prometheus + graphana to monitor node
+*(src: https://theawesomegarage.com/blog/monitor-your-raspberry-pi-with-prometheus-and-grafana)*
+
+```
+sudo apt install prometheus
+
+sudo apt-get install prometheus-node-exporter
+```
+
+now visiting http://localhost:9100/metrics should return metrics
+
+start the prometheus-node-exporter:
+```
+sudo systemctl enable prometheus-node-exporter
+sudo systemctl start prometheus-node-exporter
+```
+
+for monitoring too the mounted devices (ie. usb):
+edit `/etc/default/prometheus-node-exporter`:
+```
+ARGS="--collector.filesystem.mount-points-exclude="^/(dev|proc|run|sys|mnt|var/lib/docker/.+)($|/)""
+```
+
+restart the service:
+`sudo systemctl restart prometheus-node-exporter`
+
+
+Install Graphana: https://grafana.com/docs/grafana/latest/setup-grafana/installation/