This project was originally inspired by lrndis.
The USB stack is derived from vcp.
The network stack is powered by lwIP.
The toaster.svg image used in the web interface was obtained from isometric-toaster. The file was put on a diet by removing the metadata, reducing the file size from 17374 to 12174 bytes (very important when flash size is limited).
RNDIS variants only also utilize code from lrndis and usbstick.