Question, what are the "Related services" ? witness? and RC plugins? Basically, everything that does not involve history and usual blockchain API requests? Or something else I am missing?

I am thinking on building a new mobo, with 128GB RAM at home and I am trying to understand if the seed/witness/others could be on a node with less than 128GB, say... 32 or up to 64GB, and then use the 128GB one for the history (HAF) and normal API stuff.

Then get a proper firewall, proper phisical links isolation, etc, and serve Oceania/ASIA islands zone, since from here access to Europe kind of "sucks" LOL... no one can cut off this crap distance latency, and until I get Elon Musk cheap Starlink satellites, it's still going to take a while.

Studying this properly before I regret doing something weird =) And grabbing enough experience to how the API is attacked to understand how to manage myself this.