A small update:
24 Hour Game Achievement: Achieved.
Four City Hubs total. In addition to the two chokes, I've put one over a Dark Spire Vengeance Generator, and the fourth and last so far went up in the Super Terminal system (complete with spare Armor Golem).
Super Terminal Hacking started off light enough that I was able to spare my fleet for EGSF duties, which was critical. My western choke/hub, Hacedre does quite fine thanks to spider turrets, gatling spam, mercenaries, and most importantly, enough distance between my wormhole and any others to buy defenders time. My northern choke/hub, Samuva... goes down horrifyingly fast. The wormhole to (neutral) Mbwofen is horrifying close. And simply put, the 57 million health shields don't count for much when Dire Implosion and Infiltration guardians come with the Hub Construction Retaliation.
It's.... a bit horrifying. I think I started seeing multiple Dire Guardians as soon as my second city, but definitely by my fourth.
Meanwhile, Nowqa (located in the center of my home cluster) is going swimmingly - but I may have to cancel the hack earlier than planned thanks to CPAs... I'll be maintaining multiple saves. I'm thinking defending the hack with the Armored Golem, 3 Cursed Golems, and 9 Neinzul Enclaves, a few forts, and the hub facility modules. The main body of my fleet doesn't even have to FRD at the moment, so I'll see what happens if I pull it out and support it with the Botnet. This is before the hacking changes, fortunately, since I'm at Extreme Hacking.
With 4 cities, 10 shipyards, should be able to support 5 Cruisers. My Cruisers are specced out for "Brawler"... Lasers, 2 Heavy Beam MKII, 1 Plasma Siege MK1. My Destroyers are specced for three railgun modules and two lasers. None of them have any shields.
On second thought (after those screenshots were taken and after this post was posted, I'm killing the SuperTerm now. I've got regression all over the flanks of my empire, and not enough power to activate my Botnet.