I'm glad you liked it!! And the mines always / sometimes moving was definitely a design decision I went back and forth on for some time - I definitely made sure that every puzzle was solvable under the assumption that each mine may stay still, but I definitely found that it was more fun to design/play levels where the mines moved every step.
And animating the timeline is definitely a feature that I'd like to implement - especially since I have some ideas for levels where the timeline forms an infinite loop, and I feel those levels would be especially cool to see animated.
Thank you so much for your feedback!