Deep Tech
Simplify Linux ID Generation for Fast, Unique IDs
A Bash script that generates UUIDs and random fake IDs on Linux, with MD5, SHA-256, SHA-384 and Base64 forms and text or JSON output, plus logging.
Converting EML Files to HTML, Markdown, and PDF
A Python script that converts .eml email files to HTML, Markdown, PDF, text and JSON, saves attachments and builds one indexed file, with setup steps.
Apple iOS Mail Client leaking highly sensitive information
In 2019 the iPhone Mail app put my local and VPN IP addresses, iOS build and iPhone model in email headers. The evidence, and how Apple responded.
Validating VPN nodes
How Kodachi validates VPN nodes from providers like Hide.me, Proton, Mullvad, NordVPN and VPN Gate on the server side with scheduled Bash scripts.
Migrating from PHP 5.6 to 7.3
How I fixed two breakages when moving WordPress from PHP 5.6 to 7.3: the removed preg_replace /e modifier and mcrypt, plus what to run in 2026.
Migrating from vBulletin to WoltLab Burning Board
My step-by-step migration of a forum with 160,000+ members from vBulletin 4 to WoltLab Burning Board: database conversion, import, fixes and scripts.