Ahem
DS9 came out just before B5.
And B5 creator went to Paramount with it as an idea first, but they rejected it... just before they made DS9
IIRC
( Invisible Wizard - 10th Level Nerf-herder, Fri 1 Nov 2024, 22:57, archived)

B5 was pitched in 1987, the same year TNG came out.
The suits years later encouraged the writers of DS9 to steal many of the ideas from B5 (without necessarily telling them where the ideas came from).

Ahem indeed.
( brb Learn Ukrainian and prepare for a referendum, Fri 1 Nov 2024, 23:29, archived)