Juggling a lot of projects right now, both IRL and mapping/developing. Might have more to show/tell later on but for now I've made a github.io page for Map2Prop
with info about that little thing as well as download links with changelogs but more importantly it has a subpage for format specifications
for some of the formats used in the project.
(Edit: The specifications have made their way to the TWHL wiki now over at Format Specifications
I've added a lot of my own findings where I could and hopefully made it easier to read by using consistent notation and style (but I'll gladly welcome any feedback for what can be done differently!)