Ridiculously fast unicode (UTF-8) validation, by Daniel Lemire.

8086 microcode disassembled, by Andrew Jenner.

Cryptographic Signing using ssh-keygen(1) with a FIDO Authenticator

SAILDART, an archive of the first Stanford Artificial Intelligence Laboratory derived from its final backup tapes.

xplugd is a UNIX daemon that executes a script on X input and RandR changes, i.e., when a keyboard, mouse or a monitor is plugged in or unplugged.

fx, a command-line tool and terminal JSON viewer.

Building a 10BASE5 “Thick Ethernet” network, by Matt Millman.

Floating-Point Formats, the ultimative reference.

Nokia Composer in 512 bytes, by Serge Zaitsev.