Jens Alfke’s Weblog

Kapwing’s new research shows that 21-33% of YouTube’s feed may consist of AI slop or brainrot videos. But which countries and channels are achieving the greatest reach — and how much money might they make? We analyzed social data to find out.

Despite how widely used the ESP32 is, its Bluetooth stack remains closed source. Let’s dive into the low-level workings of a proprietary Bluetooth peripheral. Whether you are interested in reverse ...

Yesterday, the Bazel team at Google did not have a very Merry Boxing Day. An SSL certificate expired for and as shown in this screenshot from the github issue. This expired certificate apparently b…

Rex is a safe and usable kernel extension framework that allows loading and executing Rust kernel extension programs in the place of eBPF. - rex-rs/rex

A memoir of growing up in China’s classified atomic bomb base in the Gobi Desert.

Dialtone Console - P3 server for retro AOL 3.0 clients

The destructor serves as the "finally".

This is a follow-up to making the rav1d video decoder 1% faster, where we compared profiler snapshots of rav1d (the Rust implementation) and dav1d (the C …

January 1, 2026 is Public Domain Day: Works from 1930 are open to all, as are sound recordings from 1925! By Jennifer Jenkins and James Boyle[1] CC BY 4.0 Please note that this site is only about US

Sometimes called a to-done list.

If someone had told me 12 months ago what was going to happen this past year, I wouldn’t have believed them. Skipping swiftly past all the political, economic and social turmoil, I come to th…

Bankruptcies are suddenly everywhere, from billion-dollar giants to small businesses to individuals. Experts are stumped at the breadth of industries.

Scientists used implanted fat cells to gobble up available nutrients around cancer tumors, starving the tumors to death.

How I built MacThrottle, a menu bar app that tells me when my Mac is thermal throttling, and the journey to find the right macOS APIs.

I posted this video on Myspace on July 20, 2009 where it has received 4604 views as of today.

Talk show style in­ter­view with the orig­i­nal de­vel­op­ers of APL. Eric Iverson says my dad was off in Denmark at the time. I post­ed this video to pro­mote…