Jason, the real trick is going to be making the Rachel HTML file pop up and be able to be drilled down into. @Abhishek recognizes the issue here with Rachel-like data bases and is problably going to fix this so the Skylark Reader works like your computer does when you download to the computer. To do that, you have to be able to correctly render the START_HERE.html file with the reader.
I’m going to try a 64 GB Sandisk tomorrow for both data storage and the basic Skylark OS. Based on what you want to do, the 128 GB SD card starts to make sense. I havn’t recently tried a 2 TB Western Digital hard drive as external storage, but will later this week. It worked with the 3 year old Lighthouse terminal, but hasn’t worked since with Pis or CHIPs. Ken