Rules for Yajilin
When I make larger puzzles, I seem to find new things to put in. But the only new things I seem to be able to find on larger scale are hard steps I wouldn't have room for on a small scale. I think that's why I'm not much a fan of large Slitherlink puzzles as you can't really put anything in them that doesn't fit on a smaller scale. As my previous Castle Wall puzzle, this one is also a tough one to crack.
I did something silly with the clue placement, which I didn't realise at first. I wasn't 100% sure how to handle the corners, so I basically made it clear at the start what to do with them.