Serenum are free and licensed under GNU GPLv3. Go to codeberg.org/serenum if you want to see the source code.
You can install Serenum on your own server. The installation are very basic and do not require much experience. Read INSTALL.md to get started.
We have strict privacy rules. Serenum does not log anything about your visit - period.
For more info, choose "Privacy" in the footer.
If you have any suggestions or want to report a bug, you can create a new issue at Codeberg.