In my story the protagonist lives in an arcology, but this is not just any arcology.
Over a 100 years ago, a global war fought between those who sided with a massively distributed and rather 'insane' AI, and those opposed to it. As the AI was losing, and the earth being ruined in the process of the war and becoming near unlivable, the AI created many giant (roughly 750km in length, 225km in width) sleeper ships to transport its supporters to new worlds.
At least one1 of these ships was captured, and retrofitted, by those opposed to the AI, to be a space station they could live on (remember that the earth is near ruined). At this stage no one on board is a 'sleeper' in terms of it previously being a sleeper-ship
Fast forward somewhat and humans have now developed a working Alcubierre drive2, and gone off in search of a new world to settle. Things go wrong, and they have to land their previous generation ship-cum-colony ship.
This is all background/history in the setting of the story.
My problem is, that neither the AI nor the retrofitters intended to land the ship, and because it has a working self-sustaining source of food and energy; there's no need for windows.
Why is this a problem? I wanted the aesthetic on the ship to be closer to be a cross of solarpunk and cassette futurism. But for solar punk I need to let light in. Part of the background conflict/contrast are between those who accept the hydroponic synthfood and those who prefer to eat what they've grown in their smuggled-aboard home soil.
I'm struggling to figure out what purpose this would serve if they never intended to need light on board.
1 Maybe there are others, I've not fully decided, but I don't think it matters?
2 The drive is powered by handwavium, and I'm ignoring that the 'best' shape for an Alcubierre driven ship is a pancake-shaped.