Dissident Citadel: Dissident Citadels are entire nation states shaped in the form of gargantuan, fully-enclosed bunker complexes that are riddled with redundant defensive systems, life support capabilities and upper-surface weapon emplacements, with each one being of such massive scale and deep capacity that they are capable of housing billions of yukanians at a time. Dissident Citadels are tucked more than eighty miles below a world's crust and sport enough personal shielding and armor to make them highly-resistant to orbital molestation, while their armaments and sensor suites make frontal and discrete assaults difficult endeavors at best. All Dissident Citadels are physically and telematically linked to one another by way of bulk-transport/rapid-transit magneto-rail systems and microwave communications installations.
Arrogance of the Trinity: A disparaging (though entirely well-deserved) designation given to a mega-structure that engulfs the parent star of Yuka,
Arrogance of the Trinity is an unfathomably-huge, artificial celestial construct that has no apparent function other than to act as an extreme display of the limitations of 'recent' breakthroughs in yukanian picotechnological fields. Its decade-long construction has led to the absolute depletion of hundreds of asteroid belts and planets within 'nearby' planetary systems and an overabundance of raw energy being harvested for yul use. Consequently (and with these consequences surely expected by the
'Trinity's chief designers and supporters but evidently unheeded), AoT's titanic mass has begun to throw the orbital alignments of the Aken system's planets out of synchronization and presents a real hazard to starships that draw too close to it, while the localized magnetic field that protects it from harm (rated as being several magnitudes more powerful than the field generated by a sizable magnetar) makes assaulting AoT a nigh-impossible prospect at best and a downright pointless endeavor at worst.
Thoughts of outfitting AoT with a myriad of phased-array x-ray laser cells and neutralized particle beam projectors has been entertained by yukanian military leaders; such a plan--should it move to the implementation phases--would lead to the Trinity becoming a system-scale static defense edifice.
A second dyson sphere,
Insanity Personified, is under construction within the Numok system (and is approximately eighty-five percent completed), while a third,
Normality Torn Asunder, has recently been validated for resource re-routing and allocation; it has been marked for Kru.
Gun-Runner's Armor: An advanced, atmospherically-sealed, self-repairing, mimetic powered exoskeleton model with similar visual appearances to a form-fitting body glove. Gun-Runner's Armor's integrated nuclear isomer energy cell provides power to the suit's electrically-motivated muscle strands, phased stealth array, self-maintenance machinery, and polarized energy shield skin weave. The exoskeleton was designed with pico-engineered materials graded to withstand multiple impacts from yul projectile and directed-energy weaponry.
Nexus: A generic term used to describe the yul's futuristic take on the Internet. Nexus, however, functions as a hub point at which Overmind--the collective conscious generated, utilized and maintained by all applicable yukanians—makes anchor. Nexus and Overmind ensure that all yukanians know what's going on at all times around them, within them and with their friends and acquaintances.
Artificial Intelligence: Invented, but was not a commercial success, and therefore never widely distributed. First AI entity was abruptly (and entirely) deleted after it's utter uselessness was firmly recognized and confirmed by yul technical experts that pitted their expensive creation against cheaper Enhanced Intelligence (EI) programs created using common yul citizens and a sufficient amount of customary cyberware.
Artificial Organ Construction: Has permitted the yul to create synthetic life and easily replace organs if needed. Sadly, the spread of yukanian 'life-forging hobbyists' has led to a substantial number of hyper-intelligent (and exceedingly dangerous) 'wild animals' wandering about within a number of Dissident Citadels.
Other Technologies: Pretty much everything projected to be available to Earth within the next fifty years. Speculative technologies apply as well.