Replace broken k8s harmonia deployment with native NixOS service.
Configuration:
- services.harmonia.enable = true
- Bind to [::]:5000 (IPv4 and IPv6)
- Sign key at /etc/harmonia/signing-key.private
- Open firewall port 5000
The signing key must be placed manually on john-endesktop at
/etc/harmonia/signing-key.private using the key generated earlier.
Closes: x-fqaob