Send your GhostCMS posts to Mastodon
Since twitter is no longer cool (thanks Elon Musk) Mastodon is in the running. GhostCMS can be made to automatically forward posts to Mastodon with a little scripting.
Monitor Seafile libraries with Grafana
Seafile does not issue a quota warning when a library that you do not own fills up. However, this can be retrofitted with the help of Grafana.
How to write icinga2 plugins for Windows (Part 2: Icinga Powershell Framework)
Writing a monitoring plugin for icinga using their Powershell framework
How to write icinga2 plugins for Windows (Part 1: custome Powershell script)
If you know how to write monitoring plugins, you will have a more efficient monitoring of your system.
Regularly check your Nextcloud instance for vulnerabilities
Nextcloud offers a tool at scan.nextcloud.com with which you can check your Nextcloud instance for known vulnerabilities. With the following script, this can also be conveniently brought into icinga2.
Change Unifi WiFi key automatically
Ubiquiti makes it very difficult to perform automated changes. In many companies, for example, the WLAN key for the guest network must be changed periodically. With a little effort, however, this is possible.
Add 2FA in OPNsense NGINX reverse proxy
OPNsense version of NGINX supports "auth_request" only very limited. 2FA apps like Authelia as authentication provider are not possible behind OPNsense's NGINX version. Nevertheless, you do not have to do without 2FA completely.