How would Star Trek / UFP handle a Planet Ship?

[Kamen Rider Blade]

Here's a typical Sci-Fi explainer as to what a "Planet Ship" is:

To view this content we will need your consent to set third party cookies.
For more detailed information, see our cookies page.

Accept third party cookies

Isaac Arthur's explanation is great IMO.

Hopefully, one day we'll get to see a living version of one in Star Trek that is functional and our protagonists get to visit it.

I wonder what would power it? How would you get it to move given it's massive size?

How big of a Planetoid would you choose to move?

How fast can you make the Planetoid go FTL?

 

[publiusr]

It would help if it were part of a system that got too close to the galactic core. This star moves at 8,000 km sec:
https://indianexpress.com/article/t...orbits-supermassive-black-hole-s4716-8012344/

The planet could get slingshot out as a last ditch method--three-body and all that...

Tow the planet with a ship star
https://us.macmillan.com/books/9780765367129/shipstar

 

[publiusr]

Here is some information that might even explain Ceti Alpha 6’s destruction:
https://www.space.com/dark-matter-planets-blown-up-detection

A dark matter planet (here it looks like mirror matter) could accumulate normal matter…and survive an explosion.

I wonder if that could be weaponized.