I've recently tidied up the chat and have started a community wiki walkthrough here: https://playdate-wiki.com/wiki/Pine
For those who have already progressed a ways, feel free to add to the walkthrough.
Gave A1 a crack last night, probably needs a bit of tidying at some point (but tragically I can no longer procrastinate my other tasks lol).
One thing I did notice, as a sidebar: In the early mines maze, walking within 1-2 tiles of the pulley or storeroom door makes my playdate bug out. This actually happened to me on first play through but I thought it was an effect! I'm fairly sure it's not, but lmk.
It gets extremely sluggish (music slows, movements take a while to register) and then suddenly catches up, music speeds up suddenly. Feels like it's struggling to keep up, essentially. For me, I can replicate it to some degree each time.
Not caused a crash at all, but might be worth checking usage around there :0)