pfSense/FreeBSD pkg repository

Architectures:
  AMD64/x86 — https://pfsense.repo.defra-1.vortanix.com/amd64/ (also mirrored at repo root / for legacy configs)
  ARM64/aarch64 — https://pfsense.repo.defra-1.vortanix.com/arm64/

Configure each firewall with pkg mirror mirror_type NONE, no trailing slash,
matching the firewall CPU (AMD64 vs ARM).

Legacy single-URL setups may still point at repo root;
those resolve to amd64/ via symlinks.