Stellaris Gigastructural Engineering Console Commands Link Page

Gigastructural Engineering adds thousands of new objects. You need the for spawning.

In the vast, strategic depths of Stellaris , few mods have reshaped the galaxy as profoundly as (often abbreviated as Gigas). This mod transcends the base game’s limitations, allowing players to construct celestial bodies, dismantle entire star systems, and forge weapons capable of deleting space-time itself. stellaris gigastructural engineering console commands link

While there isn't a single official "console command" specifically for the Gigastructural Engineering Gigastructural Engineering adds thousands of new objects

Example:

Giga ships are built via special decision on a moon/planet/star, but console can spawn them directly. strategic depths of Stellaris