The buildserver hardware sponsor Dezponia has provided KaOS with a new server.
The old server was put into use August 2013, received a KaOS install at that time. It served as the main KaOS builder all that time, never needed a reinstall, even went through the KDE 4 to Plasma 5 transition remotely (always updated over ssh). That server had an 8 core CPU and 16 Gb of RAM. It is now re-purposed toward other duties for Dezponia.
The new server specs:

$ inxi -MCIS
System:    Host: kaosbuild Kernel: 4.16.8-1 x86_64 bits: 64 Console: tty 0 Distro: KaOS (2018) 
Machine:   Type: Kvm System: QEMU product: Standard PC (Q35 + ICH9, 2009) v: pc-q35-2.11 
           serial: <root required> 
           Mobo: N/A model: N/A serial: N/A UEFI: EFI Development Kit II / OVMF v: 0.0.0 date: 02/06/2015 
CPU:       Topology: 28x Single Core model: AMD Opteron 62xx class CPU bits: 64 type: SMP L2 cache: 14.0 MiB 
           Speed: 2700 MHz min/max: N/A Core speeds (MHz): 1: 2700 2: 2700 3: 2700 4: 2700 5: 2700 6: 2700 
           7: 2700 8: 2700 9: 2700 10: 2700 11: 2700 12: 2700 13: 2700 14: 2700 15: 2700 16: 2700 17: 2700 
           18: 2700 19: 2700 20: 2700 21: 2700 22: 2700 23: 2700 24: 2700 25: 2700 26: 2700 27: 2700 28: 2700 
Info:      Processes: 306 Uptime: 3h 55m Memory: 31.41 GiB used: 266.6 MiB (0.8%) Init: systemd runlevel: 5 
           Shell: bash inxi: 3.0.10

32 cores and 32 Gb RAM......
Example of difference toward building large packages, QtWebengine build went from 1 1/2 hours build time to about 25 minutes.