I came across Avería while searching for handwritten fonts for a project I’m working on, and found the story behind it interesting. The designer took all his fonts and overlaid them on top of each other at a low opacity level to find the average display of all of them together. The result is Avería.
You can view the sample images of the overlaid fonts to give you an idea of what I’m talking about. The detailed description of how the designer arrived at the final font is interesting.