Housekeeping

- Update README
- Run shellcheck on .sh files
- Add helper scripts
- Remove eirene vm variant
- Add post-install checklist

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

hosts/eirene/README.md

@@ -0,0 +1,14 @@
+# eirene
+
+## Post-Install Checklist
+
+### Networking
+
+- [ ] Add NetworkManager connections
+- [ ] Connect Bluetooth devices
+- [ ] Add printers
+
+### Third-party Services
+
+- [ ] Firefox
+- [ ] Spotify