Pete Batard's Resource for UEFI Shells

Sometimes you'd like to do some work in the UEFI Shell, but you don't have one installed on a USB flash drive that's handy. Or , you're switching between machines of different Instruction Set Architecture (ISA) types, and the shell you have isn't built for the current machine. Or , you wouldn't mind building the shell for an ISA different from what you have, but you don't have the build tools…