Jeff Geerling
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jeffgeerling.com
Jeff Geerling
@jeffgeerling.com
Father, author, developer, maker. Sometimes called "an inflammatory enigma". #stl #ansible #k8s #raspberrypi #mac #crohns www.jeffgeerling.com
When you hit 40, the type of gifts that excite you hit different lol
January 12, 2026 at 5:56 PM
A highlight of last year was attending @opensaucelive.bsky.social and meeting tons of amazing makers and content creators. If you can make it Jul 18-19, in San Mateo CA, it's worth it.

'Super' early bird pricing ends tomorrow... opensauce.com/tickets/
January 8, 2026 at 6:19 PM
This was too easy #clock #gps #pico - working on something new for my mini rack!
January 8, 2026 at 2:37 AM
The Mono Gateway is a 10 Gbps router with dual SFP+ ports that fits in 1U in a mini rack. It's custom-built for open source Linux router software like OpenWRT, and I tested its throughput on @ServeTheHome's $1m CyPerf server!

Video: www.youtube.com/watch?v=3D5q...
January 2, 2026 at 3:20 PM
AI is finally becoming self-aware
December 26, 2025 at 5:51 PM
For the last video of the year, I tested Dell's "Dell Pro Max with GB10" (rolls right off the tongue, that).

Dell sent two and mentioned they aren't gaming boxes, so maybe don't focus on that in a review. So guess what I did first ;)

www.youtube.com/watch?v=FjRK...
December 26, 2025 at 3:03 PM
Bluey performed admirably, but I think was enjoying a little time alone on the kitchen floor, away from the mayhem.
December 26, 2025 at 3:36 AM
Here's the wash cycle of my broken Bosch 500 series dishwasher.

It's fixed now (pump was making grinding noises and was very weak), but this is like strike 7 for this dumb appliance.

Might have to make another video about it sometime.
December 24, 2025 at 6:26 PM
Now's a good time to mention this neat little box I've been helping with...

It's not yet ready for prime time, but we have GPS, PPS, and NTP, working on SyncE
December 20, 2025 at 8:33 PM
2 GPUs 1 Pi

What I found surprised me. This isn't as insane as you think it is...

youtube.com/watch?v=8X2Y...
December 20, 2025 at 3:02 PM
I'm testing 1.5 TB of VRAM on a cluster of Mac Studios, courtesy of RDMA support in macOS 26.2, and Exo Labs' new version of Exo (released under the OSS Apache 2.0 license today).
December 18, 2025 at 2:03 PM
Hello Phoenix I am in you
December 17, 2025 at 9:04 PM
EDAtec sent me one along with their CM0NANO development board (which seems to be the official IO Board for the CM0); much of the documentation is linked from their Chinese site, the Pi site just has an overview page and no mention in the docs as of yet.
December 12, 2025 at 3:15 PM
Performance is practically identical to the Pi Zero 2 W, though I tested it anyway (see sbc-reviews.jeffgeerling.com).

It's a Compute Module, but eschews the more fragile Hirose board to board connectors in favor of castellated edges, for easier assembly.
December 12, 2025 at 3:15 PM
The CM0 is a Pi Zero 2 W, except in stamp form, with castellated edges, so it's easier to pick and place and solder to another PCB.

It's only being sold in China currently, for integration into OEM products.
December 12, 2025 at 3:15 PM
Now that Nvidia GPUs run on the Raspberry Pi, I want to see if they're good for Jellyfin transcoding (e.g. take your old 3060 and throw it on a Pi for a little #homelab media server...). www.jeffgeerling.com/blog/2025/be...
December 11, 2025 at 10:07 PM
Hello there, Raspberry Pi CM0. EDAtec sent this to me from China. Unfortunately you can't get these anywhere else! It's basically a Pi Zero 2 W, but in SoM form. And it has castellated edges so it can be pick 'n placed right onto PCBs.
December 10, 2025 at 3:22 AM
Aww, I was hoping the more artsy thumbs would win. At least with the initial video audience, it looks like me in the thumbnail helps.

I may re-run the test again next week, once the video's out in 'general' recommendations, and the main audience has already seen it
December 9, 2025 at 3:49 PM
The DC-ROMA II is not a Framework 13... but it is. But you shouldn't buy it—unless you're a RISC-V developer or enthusiast, I guess. It's complicated: www.youtube.com/watch?v=OkFf...
December 8, 2025 at 3:57 PM
When you don't have an @ifixit.com iOpener... a little less safe, just remove from heat once you smell plastic 😜
December 2, 2025 at 11:37 PM
I have a shirt for that!
November 30, 2025 at 9:46 PM
The Nvidia DGX Spark (well, I'm testing the Dell version with better thermals and a power LED (heh, the Spark doesn't have one)... it's a very competent Arm workstation.

Just... too expensive. Working through 200G clustering issues for now.
November 30, 2025 at 3:19 AM
Nvidia graphics acceleration working on the Raspberry Pi 5: www.youtube.com/watch?v=SPTY...
November 26, 2025 at 11:49 PM
Dell sent me two 'Pro Max with GB10' units to test.

They're more competent as little Arm Linux workstations than I expected (Mediatek's 'Grace' CPU is decent).

*However*... there are caveats. Like the price, and idle power even without 200G networking sucking down watts.
November 25, 2025 at 11:45 PM
We were instructed to make angry sysadmin faces in the second picture. Apparently that's not possible lol! It was great seeing Patrick of @servethehome.com.web.brid.gy and Wendell of @level1techs.bsky.social at #SC25!
November 20, 2025 at 1:19 PM