This omnibus is a bundles of all the Data API builder extensions available in the VS Code marketplace into a single package.
Constituent Data API builder extensions can be recognized by their icon. And though extensions these aren't official, they are made with a considerable amount of love for the engine & developer experience.
An omnibus is a collection of works, stories, or items compiled into a single volume, often linked by theme or author. The term originates from the Latin omnibus, meaning "for all," derived from omni- ("all") and a plural dative ending indicating inclusivity. But in the case of the -bus suffix in omnibus, it specifically means "for all" or "to all." Interestingly, the word "bus" as we use it today is a shortened form of omnibus, originally applied to public transportation vehicles to signify they were "for all" passengers. Related words include omnipotent ("all-powerful"), omniscient ("all-knowing"), and omnivore ("eats all kinds of food").