A strange case in DD-WRT

The Linux kernel in DD-WRT is a customized one. Some patch is applied and not used elsewhere, not to mention on the upstream. This is what bothered me a whole night to debug on a strange case in networking. [more]

Publishing a python package

When time has come, we may want to publish a python project as a package onto PyPI. While a lot of my work were proprietary, there is finally a good project that I can publish and this is what to do to put it up: [more]

Extract slides from video

At the time of the Wuhan virus pandemic, everything went online. So seminars become webinars. The other day I am watching somebody presenting online. The deck is useful but the speech is boring. I did a screen capture video on the slide screen for an hour (on mac, so the... [more]