Very nice. I was thinking about the easiest way to install custom software, and the thought I had is to generate an .upgrade file. I was juat about to ask about the specs of the files so that soneone could do this, but it looks like your one step ahead of me
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Anyhow, the second part would be to have the upgrade file contain install files compatible with the yet undermained empeg addon program standard. (Anyone else want to chime into that thread so we can get it finished?)
Have you determained how to use the .upgrade files just for kernels, or even logos? With that, the upconning site I am working on could just generate an upgrade file on the fly for applying logos or kernels.