Javascript PC Emulator is © 2011 Fabrice Bellard.
Used with author's permission.
The original code (and possibly newer version) is available at http://bellard.org/jslinux/.
The source of GPLed components is available here.
The BusyBox was built with this config from unmodified version 1.20.0.
Use Ctrl-Up, Ctrl-Down, Ctrl-PageUp and Ctrl-PageDown for scroll back.
Use "cat /dev/clipboard" and "echo Hello world >/dev/clipboard" to read from/write to clipboard.
Binary data transfer to VM:
"uuencode BINFILE BINFILE", paste result into clipboard, "uudecode /dev/clipboard -o/tmp/BINFILE" in VM.