About

I’m John Appleby — CEO of and a builder by training. I spend my days .

Evenings and weekends I write systems code. Recent projects:

• usbwin — a macOS-native Rust CLI for writing Windows install USBs, including Windows XP via GRUB4DOS + FiraDisk.
• mkmsbr — a clean-room Rust library that produces Microsoft-compatible MBR and FAT32/NTFS boot records.

I write here when something is worth more than a tweet. You can reach me at johnmichaelappleby@gmail.com.