Full Width 
Shortcuts 
Sign Up 
Log In 
Articles 
Reading List More from Lennart Koopmann (KJ5KRF)
I always had a diffuse idea of why people are spending so much time and money on amateur radio. Once I got my license and started to amass radios myself, it became more clear to me. It always seemed like amateur radio was an extremely practical endeavor. The goal appeared to be to establish alternative communication forms in case of a breakdown of existing ways to communicate or to be able to stay in contact with civilization when out hiking in the woods.
Many product companies start out with a very heavy focus on their engineering teams. At some point, many companies move the hosting and writing of documentation out of engineering and into a separate part of the company. It could be marketing, it could be customer success. This is a mistake.
In September 2022, after watching many YouTube videos of other people on long-distance Amtrak trips, I finally embarked on a journey of my own: I took the Amtrak Southwest Chief train from Chicago to Los Angeles. Continue reading to learn more about it and why I’ll do it again on another route. “Why would you want to do this?” This is a question I got a lot. When I told friends that I booked a ticket to be on a train for over 40 hours, many didn’t understand why anyone would want to do this when you can fly for cheaper and in so much less time, enjoying comforts like in-flight entertainment, drinks, snacks, and the airport lounges.
Today, I am incredibly excited to announce that I left my previous position to work on nzyme full-time. Working as founder and CTO for almost ten years and helping the company grow to more than 125 full-time employees, I have learned a lot that I can now put to work again.
More in programming
Say hello to apps.chofter.com, the new home for everything I build. The speed at which I ship new things has massively increased with the advent of AI, and I’ve been encouraged by the fact that, as I approach my sixth decade, new ideas for useful & fun things to build still come at me apace. These no longer fit on my personal homepage, which is a combination of work experience, interests, things I made long ago that are no longer relevant (but still interesting), and of course, the many apps & tools I have out there in the wild right now. The site was 100% built using Claude Code, which did an amazing job of inspecting all the various websites, app stores and code bases and constructing a site in 30 minutes or so. I had to push it to make the site more SEO friendly, pre-rendered to HTML rather than over relying on client side rendering, but that was it. So there we go, enjoy the delightful and hopefully useful apps that I’ve already built and will continue to build in the future
New in the SumatraPDF pre-release builds: DDE commands accept arguments Commands sent via DDE can take arguments, the same as in custom shortcuts (#5383). Loading message in tab While a document loads, its tab shows a “loading” message instead of the home page (#5385). Install 32-bit on 64-bit Windows The installer lets you install the 32-bit version on 64-bit Windows (#5379). Changes for this day · Full changelog
Kagi is ending development of Orion for Linux and Windows and open-sourcing both so the community can carry them forward. Our small team will now focus fully on making Orion for macOS and iOS faster, more stable, and more capable.
A clip of me singing a funny song from Gilbert and Sullivan’s Ruddigore back in 2013
In this video, we look at why fork() needs copy-on-write, how it works inside the kernel, and a memory usage problem that Instagram encountered with Python.
