Jeff Geerling
@jeffgeerling.com
Father, author, developer, maker. Sometimes called "an inflammatory enigma". #stl #ansible #k8s #raspberrypi #mac #crohns www.jeffgeerling.com
Minisforum just launched their first Arm workstation, the MS-R1.
12-core CPU, Arm Mali G720 iGPU, 64 GB of RAM, NVMe, U.2, and PCIe expansion, and a lot more. It's a whole Arm Homelab in a box!
12-core CPU, Arm Mali G720 iGPU, 64 GB of RAM, NVMe, U.2, and PCIe expansion, and a lot more. It's a whole Arm Homelab in a box!
November 10, 2025 at 4:03 PM
Minisforum just launched their first Arm workstation, the MS-R1.
12-core CPU, Arm Mali G720 iGPU, 64 GB of RAM, NVMe, U.2, and PCIe expansion, and a lot more. It's a whole Arm Homelab in a box!
12-core CPU, Arm Mali G720 iGPU, 64 GB of RAM, NVMe, U.2, and PCIe expansion, and a lot more. It's a whole Arm Homelab in a box!
Just tried out the new built-in WebUI feature of llama.cpp and it couldn't be easier. Just start llama-server with a host and port, and voila!
November 7, 2025 at 6:21 PM
Just tried out the new built-in WebUI feature of llama.cpp and it couldn't be easier. Just start llama-server with a host and port, and voila!
When you ground a hot dog to an AM radio tower, it generates plasma.
Can I turn that plasma into audible sound—without a microphone?
Excited to finally post this Geerling Engineering video after working with @gavinfree.bsky.social to get the high speed footage! www.youtube.com/watch?v=nMF3...
Can I turn that plasma into audible sound—without a microphone?
Excited to finally post this Geerling Engineering video after working with @gavinfree.bsky.social to get the high speed footage! www.youtube.com/watch?v=nMF3...
November 7, 2025 at 4:17 PM
When you ground a hot dog to an AM radio tower, it generates plasma.
Can I turn that plasma into audible sound—without a microphone?
Excited to finally post this Geerling Engineering video after working with @gavinfree.bsky.social to get the high speed footage! www.youtube.com/watch?v=nMF3...
Can I turn that plasma into audible sound—without a microphone?
Excited to finally post this Geerling Engineering video after working with @gavinfree.bsky.social to get the high speed footage! www.youtube.com/watch?v=nMF3...
Look, I bought a new workstation! The latest in chiplet design...
...back in 2009
...back in 2009
November 5, 2025 at 9:06 PM
Look, I bought a new workstation! The latest in chiplet design...
...back in 2009
...back in 2009
So uh, Google Cloud, could you give me a week or so before you follow in @awscloud.bsky.social and Azure's footsteps and implode from DNS issues? I need to restock on www.redshirtjeff.com
October 31, 2025 at 7:57 PM
So uh, Google Cloud, could you give me a week or so before you follow in @awscloud.bsky.social and Azure's footsteps and implode from DNS issues? I need to restock on www.redshirtjeff.com
The Arduino Uno Q is here.
And it's a bit weird, as a hybrid SBC + microcontroller.
Here's my experience testing it: www.youtube.com/watch?v=Vz3p...
And it's a bit weird, as a hybrid SBC + microcontroller.
Here's my experience testing it: www.youtube.com/watch?v=Vz3p...
October 31, 2025 at 2:04 PM
The Arduino Uno Q is here.
And it's a bit weird, as a hybrid SBC + microcontroller.
Here's my experience testing it: www.youtube.com/watch?v=Vz3p...
And it's a bit weird, as a hybrid SBC + microcontroller.
Here's my experience testing it: www.youtube.com/watch?v=Vz3p...
Woo! Okay... now back to finishing up my Arduino Uno Q video :)
October 29, 2025 at 9:54 PM
Woo! Okay... now back to finishing up my Arduino Uno Q video :)
It's an interesting board. A weird hybrid.
October 28, 2025 at 12:51 AM
It's an interesting board. A weird hybrid.
It's good to see DuckDuckGo getting some traction for my site referrals, though still pales in comparison to Google.
October 24, 2025 at 10:42 PM
It's good to see DuckDuckGo getting some traction for my site referrals, though still pales in comparison to Google.
Raise your hand if you ever inadvertently caused a 2+ hour outage (which was impossible to fix in a deterministic manner) due to DNS misconfiguration. #itwasdns
October 21, 2025 at 2:05 AM
Raise your hand if you ever inadvertently caused a 2+ hour outage (which was impossible to fix in a deterministic manner) due to DNS misconfiguration. #itwasdns
Two quick highlights from the show: a completely open source CRT (github.com/tdaede/td-crt), and @yyzkevin's RP2040-powered PCMCIA card (www.yyzkevin.ca/pico-pcmcia/)
October 16, 2025 at 2:25 PM
Two quick highlights from the show: a completely open source CRT (github.com/tdaede/td-crt), and @yyzkevin's RP2040-powered PCMCIA card (www.yyzkevin.ca/pico-pcmcia/)
At @vcfmidwest I found:
- ESP32 Lisa hard drive emulator
- RP2040 powering iMac display replacement boards
- Wisblock chip powering LoRa radio for Commodore 64
- Pi Zero C64 drive emulator
- Pi Pico voltage board for AMRAY SEM
- Pis running various exhibits...
- ESP32 Lisa hard drive emulator
- RP2040 powering iMac display replacement boards
- Wisblock chip powering LoRa radio for Commodore 64
- Pi Zero C64 drive emulator
- Pi Pico voltage board for AMRAY SEM
- Pis running various exhibits...
October 16, 2025 at 2:05 PM
At @vcfmidwest I found:
- ESP32 Lisa hard drive emulator
- RP2040 powering iMac display replacement boards
- Wisblock chip powering LoRa radio for Commodore 64
- Pi Zero C64 drive emulator
- Pi Pico voltage board for AMRAY SEM
- Pis running various exhibits...
- ESP32 Lisa hard drive emulator
- RP2040 powering iMac display replacement boards
- Wisblock chip powering LoRa radio for Commodore 64
- Pi Zero C64 drive emulator
- Pi Pico voltage board for AMRAY SEM
- Pis running various exhibits...
We are in the age of RISC-V chiplets, apparently.
Still testing the new DeepComputing DC-ROMA Mainboard II, with 8 SiFive P550 cores, Imagination GPU, and separate NPU chip, with 32 GB of shared RAM. The way it works is... interesting.
Stay tuned for a video. Might take a little longer than usual.
Still testing the new DeepComputing DC-ROMA Mainboard II, with 8 SiFive P550 cores, Imagination GPU, and separate NPU chip, with 32 GB of shared RAM. The way it works is... interesting.
Stay tuned for a video. Might take a little longer than usual.
October 16, 2025 at 1:54 AM
We are in the age of RISC-V chiplets, apparently.
Still testing the new DeepComputing DC-ROMA Mainboard II, with 8 SiFive P550 cores, Imagination GPU, and separate NPU chip, with 32 GB of shared RAM. The way it works is... interesting.
Stay tuned for a video. Might take a little longer than usual.
Still testing the new DeepComputing DC-ROMA Mainboard II, with 8 SiFive P550 cores, Imagination GPU, and separate NPU chip, with 32 GB of shared RAM. The way it works is... interesting.
Stay tuned for a video. Might take a little longer than usual.
Re: Nvidia DGX Spark sales — it's currently in stock at my local Micro Center, with 12 units for sale at $3,999.99 www.microcenter.com/product/6990...
I have a feeling these will not be flying off shelves like they might've been if released in Q2 this year.
I have a feeling these will not be flying off shelves like they might've been if released in Q2 this year.
October 15, 2025 at 5:59 PM
Re: Nvidia DGX Spark sales — it's currently in stock at my local Micro Center, with 12 units for sale at $3,999.99 www.microcenter.com/product/6990...
I have a feeling these will not be flying off shelves like they might've been if released in Q2 this year.
I have a feeling these will not be flying off shelves like they might've been if released in Q2 this year.
It's always a good morning when you're picking up some early b-roll of towers for a new Geerling Engineering video...
October 15, 2025 at 12:51 PM
It's always a good morning when you're picking up some early b-roll of towers for a new Geerling Engineering video...
Kind of amazed this just worked.
Old PowerBook putting the "Universal" in USB
Old PowerBook putting the "Universal" in USB
October 15, 2025 at 1:56 AM
Kind of amazed this just worked.
Old PowerBook putting the "Universal" in USB
Old PowerBook putting the "Universal" in USB
Haha apparently I had liked the original reply to that months ago 😆
October 15, 2025 at 1:48 AM
Haha apparently I had liked the original reply to that months ago 😆
Guess what I have on my desk to test next week...?
Two more RISC-V cores to add on to the 8 inside this laptop!
This is a neat little RP2350 GPIO expansion card for Framework devices, which is plugged into the DC ROMA Mainboard II, with an 8-core P550 onboard :)
Two more RISC-V cores to add on to the 8 inside this laptop!
This is a neat little RP2350 GPIO expansion card for Framework devices, which is plugged into the DC ROMA Mainboard II, with an 8-core P550 onboard :)
October 11, 2025 at 12:47 AM
Guess what I have on my desk to test next week...?
Two more RISC-V cores to add on to the 8 inside this laptop!
This is a neat little RP2350 GPIO expansion card for Framework devices, which is plugged into the DC ROMA Mainboard II, with an 8-core P550 onboard :)
Two more RISC-V cores to add on to the 8 inside this laptop!
This is a neat little RP2350 GPIO expansion card for Framework devices, which is plugged into the DC ROMA Mainboard II, with an 8-core P550 onboard :)
How much radiation can a Raspberry Pi handle in space? I asked Ian Charnas, the chief engineer for Mark Rober's Crunchlabs, and he shared a ton of great data on testing the CM4 while prepping for their SatGus cubesat launch!
Read more: www.jeffgeerling.com/blog/2025/ho...
Read more: www.jeffgeerling.com/blog/2025/ho...
October 8, 2025 at 3:37 PM
How much radiation can a Raspberry Pi handle in space? I asked Ian Charnas, the chief engineer for Mark Rober's Crunchlabs, and he shared a ton of great data on testing the CM4 while prepping for their SatGus cubesat launch!
Read more: www.jeffgeerling.com/blog/2025/ho...
Read more: www.jeffgeerling.com/blog/2025/ho...
Glancing in Arduino's GitHub repo for their new Debian image [presumably] for the Q (using Qualcomm's Dragonwing SoC), I found it is building off a Linux kernel fork github.com/bcmi-labs/li... which is currently private.
See: github.com/arduino/ardu...
See: github.com/arduino/ardu...
October 7, 2025 at 9:32 PM
Glancing in Arduino's GitHub repo for their new Debian image [presumably] for the Q (using Qualcomm's Dragonwing SoC), I found it is building off a Linux kernel fork github.com/bcmi-labs/li... which is currently private.
See: github.com/arduino/ardu...
See: github.com/arduino/ardu...
Thank you SO much to all who donated to the UOAA this weekend, we almost hit $2,000 between the livestream and the 5K! Those dollars will help the lives of so many ostomates, and provide resources for nurses. Also loved seeing so many others in the ostomy community celebrate #WorldOstomyDay!
October 6, 2025 at 8:05 PM
Thank you SO much to all who donated to the UOAA this weekend, we almost hit $2,000 between the livestream and the 5K! Those dollars will help the lives of so many ostomates, and provide resources for nurses. Also loved seeing so many others in the ostomy community celebrate #WorldOstomyDay!
But below is a snapshot from a 5K I ran with my two oldest kids this morning—three years after my last surgery, almost all signs of Crohn's are in remission.
My ostomy gave me new life. And one organization (and individuals within) helped me so much: the @uoaa-ostomy.bsky.social
My ostomy gave me new life. And one organization (and individuals within) helped me so much: the @uoaa-ostomy.bsky.social
October 4, 2025 at 5:30 PM
But below is a snapshot from a 5K I ran with my two oldest kids this morning—three years after my last surgery, almost all signs of Crohn's are in remission.
My ostomy gave me new life. And one organization (and individuals within) helped me so much: the @uoaa-ostomy.bsky.social
My ostomy gave me new life. And one organization (and individuals within) helped me so much: the @uoaa-ostomy.bsky.social
Most people don't know this, but I'm an 'ostomate'. I had a total proctocolectomy about 6 years ago that required a major follow-up surgery as well, all stemming from my severe Crohn's disease (it was flaring BAD!). Back then I was feeling terrible, always tired, but hid it...
October 4, 2025 at 5:30 PM
Most people don't know this, but I'm an 'ostomate'. I had a total proctocolectomy about 6 years ago that required a major follow-up surgery as well, all stemming from my severe Crohn's disease (it was flaring BAD!). Back then I was feeling terrible, always tired, but hid it...