科技
Tools
A Base64 extension. A denser Yadea pack. The small apps written when the official one was missing.
Video科技 · April 29, 2025
A 72V 120Ah pack for the Yadea E8S Pro
Stock range and speed were not enough for the daily ride, so I had a denser pack made in China and fitted it myself.

科技 · March 5, 2025
A one-click image-to-Base64 Chrome extension
When the converter I had used for three years died, I built a local, free replacement that keeps dimensions and copies clean CSS or HTML.

科技 · November 28, 2022
Installing OpenVPN Access Server on Ubuntu
A working install walkthrough for OpenVPN Access Server 2.11 / 2.14 on Ubuntu 22.04, written from a home-lab setup.

科技 · September 2, 2022
OpenVPN Access Server connection-limit notes
Lab notes on how OpenVPN Access Server encodes connection limits across 2.5–2.11, kept here as an archive of the original post.