API wise, I think what I want is just something like: - Read baseline version of API from "file" + list of extensions for future features. - API to set where the buffer of UI elements describing the UI/hyperlinks/etc are in memory. Another API to sync + current size of the buffer. (ie. kind of like a SNES DMA transfer, under the hood it'd update the host contexts elements) - Future version could allow partial updates so this feature doesn't need the full buffer in DOS-memory space.