Daniel Mangum @danielmangum.com · 26/09/2026mapping a production kubernetes cluster? maybe we have hit AGI. 060
Reposted by Daniel MangumDaniel Mangum @danielmangum.com · 18/09/2026When the Debugger Lies New post that purports to be about how GDB can sometimes return stale values on memory reads when used with a J-Link, but really is just an excuse to talk about DMA and how the key management unit (KMU) works on the @nordicsemi.com nRF54LM20. danielmangum.com/posts/when-t...danielmangum.comWhen the Debugger LiesI’ve spent the last few weeks working with the security architecture of the nRF54L series from Nordic Semiconductor (in case you missed it, I recently joined Nordic!). While doing so, I have engaged m... 0111
Daniel Mangum @danielmangum.com · 18/09/2026When the Debugger Lies New post that purports to be about how GDB can sometimes return stale values on memory reads when used with a J-Link, but really is just an excuse to talk about DMA and how the key management unit (KMU) works on the @nordicsemi.com nRF54LM20. danielmangum.com/posts/when-t...danielmangum.comWhen the Debugger LiesI’ve spent the last few weeks working with the security architecture of the nRF54L series from Nordic Semiconductor (in case you missed it, I recently joined Nordic!). While doing so, I have engaged m... 0111
Daniel Mangum @danielmangum.com · 10/09/2026it's crazy what you can learn by just asking enough people the same question until you arrive at the person with the answer. 030
Daniel Mangum @danielmangum.com · 06/09/2026seeing how many @bcantrill.bsky.social posts we can get on the front page of HackerNews this morning. 160
Daniel Mangum @danielmangum.com · 04/09/2026having an existential crisis because I think I may prefer confluence over notion. 130
Daniel Mangum @danielmangum.com · 24/08/2026**Farewell Golioth... and Hello Nordic!** I am very excited to be joining @nordicsemi.com today! I'll be working across the stack to enable new products, features, and developer experiences from chip to cloud. danielmangum.com/posts/farewe...danielmangum.comFarewell Golioth... and Hello Nordic!Friday was my last day at Golioth (and Canonical), and today is my first day at Nordic Semiconductor! It has been an interesting journey to say the least, but before diving into what drew me to Nordic... 4180
Daniel Mangum @danielmangum.com · 23/08/2026it’s not every day that you see an oscilloscope ad in the airport. 191
Daniel Mangum @danielmangum.com · 16/08/2026listening to He Who Fights with Monsters with my 4 AM Lyft driver. 000
Daniel Mangum @danielmangum.com · 07/08/2026if your measurement doesn’t look right, you might just be measuring the wrong thing. 040
Reposted by Daniel MangumDaniel Mangum @danielmangum.com · 31/07/2026**The Simple Elegance of the Integrated Timing Belt Loopback Fastener** I wrote about a technique I recently learned about for securing timing belts to actuated components, which I have dubbed the "integrated loopback fastener". danielmangum.com/posts/integr... 001
Daniel Mangum @danielmangum.com · 31/07/2026**The Simple Elegance of the Integrated Timing Belt Loopback Fastener** I wrote about a technique I recently learned about for securing timing belts to actuated components, which I have dubbed the "integrated loopback fastener". danielmangum.com/posts/integr... 001
Daniel Mangum @danielmangum.com · 31/07/2026name anything better than going to home depot with your dog. 010
Reposted by Daniel MangumDaniel Mangum @danielmangum.com · 27/07/2026**Leadership Lessons from The Odyssey** After months of anticipation, I finally saw Christopher Nolan's depiction of The Odyssey last week. Over the weekend, I attempted to evaluate Odysseus's stature as a leader and relate his successes and failures to my own. danielmangum.com/posts/odysse...danielmangum.comLeadership Lessons from The OdysseyDisclaimer: this post contains spoilers for Christopher Nolan’s 2026 depiction of The Odyssey. If you are planning to watch the movie, I would recommend doing so prior to reading, even if you are alre... 001
Daniel Mangum @danielmangum.com · 27/07/2026**Leadership Lessons from The Odyssey** After months of anticipation, I finally saw Christopher Nolan's depiction of The Odyssey last week. Over the weekend, I attempted to evaluate Odysseus's stature as a leader and relate his successes and failures to my own. danielmangum.com/posts/odysse...danielmangum.comLeadership Lessons from The OdysseyDisclaimer: this post contains spoilers for Christopher Nolan’s 2026 depiction of The Odyssey. If you are planning to watch the movie, I would recommend doing so prior to reading, even if you are alre... 001
Daniel Mangum @danielmangum.com · 25/07/2026i saw one of these Veeder Root mechanical fuel pump computers in the wild last weekend and now i can’t stop reading the manual. 060
Daniel Mangum @danielmangum.com · 17/07/2026american airlines is by far the most consistent airline. they consistently bungle every flight I book with them. 050
Daniel Mangum @danielmangum.com · 16/07/2026on my run this morning I saw someone riding a converted electric bike, but it had been converted by removing the back wheel and replacing it with a Onewheel. 070
Reposted by Daniel MangumDaniel Mangum @danielmangum.com · 14/07/2026Part of a weekend project coming together: belt-driven linear actuator with a 28BYJ-48 stepper controlled by Zephyr firmware on a @nordicsemi.com nRF52840. Linear rail bases and carriage attachment designed from scratch in Onshape and printed on Bambu Lab A1 Mini. 032
Daniel Mangum @danielmangum.com · 14/07/2026Part of a weekend project coming together: belt-driven linear actuator with a 28BYJ-48 stepper controlled by Zephyr firmware on a @nordicsemi.com nRF52840. Linear rail bases and carriage attachment designed from scratch in Onshape and printed on Bambu Lab A1 Mini. 032
Daniel Mangum @danielmangum.com · 13/07/2026I accidentally cut too far in on the corner of this rail / motor support base, but now I kind of like it. 010
Daniel Mangum @danielmangum.com · 11/07/2026you know it’s gonna be a great weekend when it starts with a new set of machine screws being delivered. 030
Daniel Mangum @danielmangum.com · 08/07/2026small test print to evaluate printer accuracy on clearance holes. 120
