At work we used https://distcc.github.io/ to offload large C compile jobs to our "jet" which is a 4U/8N Supermicro decommissioned machine with 2 x E5-2680v4 CPUs, 128 GB RAM, and 6x 960GB Crucial SSDs per node (224 cores total). It's linked with a Mikrotik CRS-309 10GBe switch to our main gigabit switch. The server is VERY VERY loud and idling at 500 W / compiling at almost 3 kW. The price was about US$10k for all of it. We also use it as NAS / backup for some things since it runs on ZFS raidz2. Very much worth it (using it as a team) but YMMV.