Here are some things I wrote recently. I tackle most subjects out of curiosity, with bonus point if it can be useful to someone.

Contact me if you find anything interesting, I'm always happy to discuss details.

AVR microcontroller

• Barebone AVR programming: a hands-on guide to programming, setting up the IO pins, clocks, and every fun bit

Fun

• Writing a JIT compiler for brainfuck
• How I reversed a portknock of a capture the flag challenge

Security

• Fast, in-process fuzzing using AFL-fuzz

Miscellaneous

• Vector quantization animation — Visual presentation of different algorithms to group vectors in sets.