As one of Vuo's developers, I work on Vuo's engine (the thing that makes compositions run), work on nodes, and write documentation. You'll see me on the forums answering people's questions about Vuo.
I've been developing apps and frameworks for several years (since I was in college). Pre-Vuo projects include Kineme Quartz Composer plugins, iOS apps for education, an app that analyzes photographs of tomato slices, and software to help people with disabilities use talking keyboards.
I enjoy using Vuo to make live music visuals. My hope for Vuo is that it will grow into a community of people of diverse backgrounds and identities making lots of different artistic, useful, unique, goofy, beautiful, crafty, wonderful compositions.
Confirmed (and there still seem to be some problems in 1.2.6 alpha1). We'll work on getting this fixed.
In the meantime, if you go to Tools > Open User Modules Folder, you can see the subcomposition files and rename them without accents. You'll have to restart Vuo Editor to reload the subcompositions with their new names.