Just learned the specs for both MBR and GPT flavours of partition table, and rolled my own in a hex editor to solve a problem that fdisk and parted weren’t able to handle. It’s hard to express how pumped I was when this box booted, but I think Andy Weir did a pretty good job in “The Martian”:

LOG ENTRY: SOL 211
I am smiling a great smile. The smile of a man who **ed with his car and didn’t break it. This is considerably more rare than you might think.