In this video he doesn't fix the machine, which someone donated to him in an atrocious state: he just strips it down to the frame. The I/O board looks like what you get if you leave a peach on the counter and then head off on a month-long vacation; the motherboard is also pretty much toast; and the battery goo seems to have wicked into the ribbon cables even. The chassis has been bent a bit; Adrian suspects it was dropped by German customs, who may also have been responsible for some pretty slapdash treatment of some of the fasteners. Fortunately the plastic panels are mostly okay. The CPU board fared the best, there's just one memory board (Adrian assumes that by now someone has made a tiny 2MB memory board replacement, lol), and the power supply is gone altogether.
Adrian is no fool and understands that any kind of restoration here is going to be a Project. He's not certain that it's compatible with the kind of release schedule that YouTube demands of a full-timer. He concludes the video by hoping that Lisa experts in the audience can help him get a more realistic idea of options for next steps.