for those of you that are living closer to Asia than Europe, there is new build server available, located in Singapore. It is considerably less beefy than soyuz, but should be okay for regular builds.
All packagers should be able to ssh into it with username and the key used on other servers. The address is sgp.pkgbuild.com. You can compare fingerprints below:
SHA256:f9VrDpIpOHvgWk+OXXRG+VMvJlbs577YFZfyxPtXKqU (ED25519) SHA256:fDdeGInsD764tfnGCbNIPH69L4k7mNs98ttFpTOv01U (RSA) SHA256:MsoXUmTXowWcPb4gma3U60Po0/5sTT5Fg+oM8bWIIUE (ECDSA)
It also hosts a mirror available at https://sgp.mirror.pkgbuild.com