The other day someone enquired about some code I wrote almost 10 years ago. It's about pathfinding, hexagons and Unity.
Unity projects are a pain. When I don't use it for about 2 weeks, I forget everything about it. Getting it into source control is another issue in itself.
It's working again. It's on github. I followed How to Git with Unity to get the code properly under source control.
Maybe I'll look at it again in another ten years.