Photographs of boards with a Judahs unit on them, and the talk that goes with them.
What makes a board post useful to the next person:
The signal chain, written out in order, including what sits in which loop.
The power supply, and which outputs feed what.
The board itself and its size, since that is what decides most of the layout.
Photographs of a board that is not finished are as useful as one that is. The reasoning behind a layout is the part that is hard to find elsewhere.
Faults and setup questions belong in Hardware. This room is for the boards.