[@Predawnia] As a fan and practitioner of sci-fi worldbuilding, I took a stab at those technologies. I threw up two possibilities for the shield tech, as dark matter is generally associated with both mass and gravity manipulation. 

I also threw up ideas for all the others as well, as the gimbal concept was rather unimpactful in its existing iteration. All these ideas are written for uniqueness, viability, and a general aim of internal consistency (rather than realism because realism is dull).

[hider=Expand:][b]Hydromagnetic Lance Cannons[/b]
The hydromagnetic lance cannon is fed with a liquid ferrous-tungsten alloy which is cooled into a semi-molten state inside the chamber. The extreme magnetic forces stretch the metal into a long, thin rod on firing, achieving velocities well above conventional railguns due to low projectile mass. The solidifying rod’s slender profile greatly improves penetration and narrows the focus of damage compared to conventional kinetic weapons of similar impact energy.

[b]Virtualized Mass Barrier Shields[/b] (more balanced but harder to miniaturize)
The use of dark matter fields to create virtual mass is a well-understood phenomenon. Its usage as a shield against incoming attacks, however, is a novel concept. A dark matter film, confined by local quantum subspace fields emitted from shield projectors, creates an ultra-high density barrier between the surface of a warship and the surrounding space. Incoming fire smacks into the virtual mass layer as if contacting the hull itself, and finds nowhere for its damage to go, instead blasting its energy off into the surrounding space. The shielding system is virtually impervious to any one attack, but can be overwhelmed by sheer magnitude of firepower due to distortions in the film that must be actively stabilized by the shield projectors. A large amount of dark matter must be stored in order to operate the shields, and account for potential losses from massive, close proximity detonations blasting parts of the film away.

[b]Gravity Shear Barrier Shields[/b] (easier to miniaturize but also a bit harder to effectively counter)
A dark matter Quantum Field Core (QFC) aboard warships produces a gravitational distortion effect that is harnessed through the shield projectors to generate a millimeter-scale gravity shear around the surface of the vessel. A conventional ionized gas barrier is projected just beneath. Any object of mass passing through the gravitational shear suffers the extreme shear forces both entering and exiting, compromising its integrity. The resulting shrapnel of the disintegrated projectiles is deflected harmlessly off the plasma barrier. Pure energy weapons contacting the shear are severely redshifted, robbing most of their energy and again being harmlessly absorbed by the plasma barrier beneath. The dark matter fueled QFC requires significant amounts of energy to operate, but the power demands are relatively unaffected by incoming fire. The primary drawback of gravitational shear protection is a relative ineffectiveness versus massive, close proximity detonations.

[b]Blink Drive[/b]
A subspace tunneling device is paired with warp field propulsion to launch the equipped vessel at rapid speeds through short-range subspace paths. The resulting effect is the outward appearance of near-instantaneous teleportation. In order to keep the drive profile and energy demands manageable aboard ships already fitted with standard Hybris FTL drives, the range of the tunneling component is exceptionally short, limiting its usage to all but the shortest of interplanetary jumps (and completely out of the question for any interstellar transit). In combat, jumping multiple vessels simultaneously requires careful synchronization to avoid unintentional collisions, as course cannot be altered once the tunneling route is locked in and prepared.

[b]Magnetolevitation Gimbal Turrets[/b]
In an effort to improve responsiveness when tracking fast-moving targets, warship cannons were fitted into spherical maglev gimbals that eliminate conventional axis limitations. More advanced warships even include magnetic traversal rails which can relocate turrets between multiple firing positions at a moment’s notice, travelling across the hull or, for large centralized weapons of supercapital vessels, through internal tracks to swap between dorsal and ventral or port and starboard positions. The versatility and responsiveness allows for more effective engagements with hostile forces without shedding relative velocity, minimizing time in the critical knife-fight range where allied forces are subject to the most severe punishment.[/hider]
Take from those whatever you wish ... all of it, none of it, up to you.