I actually didn't yet. I think I do have a fair idea about how to reach it though, since I am at what I assume is the last step. I'll have to retry it soon to see the story in it's full glory!
Oh don't worry, I think I have it figured out, I found the puzzles so far not that hard honestly, they were fairly intuitive. Although I do appreciate the help!
Just played until the end! I have to say it's an interesting ending even if it might have given me more questions although that might have been the point. Nicely made game!