Ah, shoot. I got to 66 for Day1, then failed to realise a couple blocks could be easily shifted outward, getting to the HS of 68. Oh well.

EDIT: Yes, there’s a new puzzle every day, plus several ways to play more:

• Go to “Create Level,” then choose “Random Level,” then hit “Play.”
• You can play past days’ puzzles from the Menu. (upper-right corner)
• You can also play user-made puzzles here: https://nitter.net/thinkingshivers/status/2005861268863746147#m