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Lennart Koopmann (KJ5KRF)

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Why Amateur Radio? I always had a diffuse idea of why people are spending so much time and money on amateur radio. Once...
29th Aug 2025
1

Why Amateur Radio?

from Lennart Koopmann (KJ5KRF) [alt+shift+b] in programming

29th Aug 2025
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...
Close Access Denial I’ve been working on nzyme full-time for 10 months now and I was struggling to find a good name for...
1st Oct 2023
53

Close Access Denial

from Lennart Koopmann (KJ5KRF) [alt+shift+b] in programming

1st Oct 2023
I’ve been working on nzyme full-time for 10 months now and I was struggling to find a good name for what its WiFi functionality does. The fact that it looks at not only WiFi but also Ethernet data does not help with that problem. If I have a minute to explain it, it’s no problem...
Documentation Belongs in Engineering Many product companies start out with a very heavy focus on their engineering teams. At some point,...
29th Aug 2023
45

Documentation Belongs in Engineering

from Lennart Koopmann (KJ5KRF) [alt+shift+b] in programming

29th Aug 2023
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...
43 Hours on the Amtrak Southwest Chief In September 2022, after watching many YouTube videos of other people on long-distance Amtrak trips,...
3rd Feb 2023
1

43 Hours on the Amtrak Southwest Chief

from Lennart Koopmann (KJ5KRF) [alt+shift+b] in programming

3rd Feb 2023
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...
I Left my previous job to Work on nzyme Full Time Today, I am incredibly excited to announce that I left my previous position to work on nzyme...
17th Jan 2023
76

I Left my previous job to Work on nzyme Full Time

from Lennart Koopmann (KJ5KRF) [alt+shift+b] in programming

17th Jan 2023
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.
Moving to Mastodon After the recent events of Elon Musk taking over, I and many others started using Mastodon and...
13th Nov 2022
57

Moving to Mastodon

from Lennart Koopmann (KJ5KRF) [alt+shift+b] in programming

13th Nov 2022
After the recent events of Elon Musk taking over, I and many others started using Mastodon and reduced Twitter activity. I avoid calling this a "switch" because I do not plan to remove my account on Twitter.
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