Here's the novella i wrote almost two years ago: https://ouroboros.cafe/#sky-out . It's a fractured exploration of various perspective snapshots when the sun begins to blink. Kind of trying to disentangle the human response to absurdity and the unprecedented in the absence of immediate risk. Limiting it to the horror that sets in when reality proves to not work remotely the way you thought it did. I'm back to original longform now after having written a novel-length homestuck fic in the meantime.