I love the aesthetic and the feel of mystery of this game. The level of polish is excellent, and it really got me invested. I wish I found out what would happen next.
I really liked how you gradually introduced the various mechanics as the game went on.
I found that just creating a bunch of parallel lines, and then collapsing and expanding them each turn with the gems seems to get you far enough into the game that the levels start repeating themselves with no added challenge. I'm not sure if discovering that was an intended strategy or just a cheese. I would've loved for the game to keep on going instead of getting stuck in that loop, it was fun.
I'm assuming that the end goal is to fill up the board, but I'm not sure how to get past the repeating levels.