@geerlingguy@mastodon.social

Jeff Geerling @geerlingguy@mastodon.social

· 3w ago

I thought I had the best time at the largest vintage computing event in the world. But then someone rolled up with a cesium atomic clock, and I was no longer sure... My video covering VCF Midwest is here: https://www.youtube.com/watch?v=oW-Hp8-DAB0 #vcfmw

I found an atomic clock at the world's largest vintage computer show

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Jeff Geerling @geerlingguy@mastodon.social

· 2mo ago

A man with a watch knows what time it is. A man with two watches is never sure. So now I have three GNSS PPS watches. And I can measure UTC to within 20-40ns. Just need my entire forearm. Not done yet: portable rubidium atomic clock for holdover.

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Jeff Geerling @geerlingguy@mastodon.social

· 3mo ago

Boosted by @trending@homestead.social

What's that saying... 'If buying isn't owning...' Sony deletes another large stash of movies off users' accounts after users "purchased" the movies. Cue up the "I'm tired boss" meme https://www.youtube.com/watch?v=l19tXQcw2tE

If buying isn't owning...

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Jeff Geerling @geerlingguy@mastodon.social

· 2mo ago

The Pi 5 16GB was never a good deal. But at $300+, it's just... don't buy it. Luckily, Pi 4s still start at $35 and Pi 5s at $45. And the 4GB Pi 400 is somehow $50 at Micro Center. Video with more: https://www.youtube.com/watch?v=53AkaYvw63U

This was never a good deal.

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Jeff Geerling @geerlingguy@mastodon.social

· 5mo ago

Bambu Lab 3D printers: never again.

They're breaking the open source social contract (for the nth time...), and I'm past hoping they'll amend their ways.

https://www.youtube.com/watch?v=eb48MdtNaDQ

Bambu Lab 3D printers: Never again

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Jeff Geerling @geerlingguy@mastodon.social

· 2mo ago

I found the cheapest way to add 25 Gbps networking to a Mac. Some 3D printing required...

Video here: https://www.youtube.com/watch?v=_--JjauL19A

Fast Mac networking is too expensive. I fixed that.

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Jeff Geerling @geerlingguy@mastodon.social

· 2mo ago

Finally! Proxmox VE officially supports Arm. At least the more server-grade Arm platforms.

I tested it on my Ampere Altra Max 128-core workstation, and it runs there (though I did hit a couple hiccups).

See: https://www.youtube.com/watch?v=Lg263L1W97w

FINALLY! Proxmox officially supports Arm (but not Raspberry Pi)

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Jeff Geerling @geerlingguy@mastodon.social

· 3mo ago

QuadRF is a phased array antenna that can see WiFi through walls, spot drones in the sky... and it's powered by a Pi 5 and FPGA board. Very neat device, we have a full video up on Geerling Engineering: https://www.youtube.com/watch?v=QESevE2c_cc

This radio can see through walls

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Jeff Geerling @geerlingguy@mastodon.social

· 2mo ago

Today I test the $699 Dell XPS 13, and see how it compares to the MacBook Neo. I didn't realize it would have a more efficient CPU, upgradeable storage, or run Linux as well as it did... It's not flawless, but it's a good budget laptop. Video here: https://www.youtube.com/watch?v=A2B7oI0FYqo

Intel just matched Apple Silicon. Seriously.

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Jeff Geerling @geerlingguy@mastodon.social

· 2mo ago

My Spectrum Business Internet connection goes down weekly. I finally set OPNsense up so I can swap to a borrowed cell backup connection.

Blog post here: https://jeffgeerling.com/blog/2026/opnsense-backup-internet-gateway/

But if you have backup 5G Internet, what do you use? (Midwest US)

Jeff Geerling

Adding a backup Internet WAN on my OPNsense Router

AKA "Spectrum has gone down two weeks in a row and I'm sick of it". I've been borrowing a portable 5G gateway from my Dad for a few weeks, for testing... and two weeks in a row, I've used it as a backup Internet option, since my Spectrum Business cable Internet has gone down. And yes, I'd get AT&T Fiber if I had the option, sadly they don't yet provide service at my studio. So I'm stuck with only one high speed wired provider. I may add on my own 5G backup Internet connection in the future, but

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Jeff Geerling @geerlingguy@mastodon.social

· 5mo ago

Every month it seems like another YT channel I follow in tech replaces the human voice backing videos with a cloned AI voice. Makes me wonder at what point in the past they went all-in on generated scripts. (It's not all bad, if someone is still at the helm who actually cares. But overall quality declines.)

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Jeff Geerling @geerlingguy@mastodon.social

· 2mo ago

I got to test a Pixel Pump 2 (by Robins Tools) for my 2nd SMD PCB. I just used it for manual pick 'n place; it's a solid little bit of kit if you do this stuff often. Video here: https://youtube.com/watch?v=8WzAy72yCJA Thanks to @idlehandsdev for putting me in touch!

Things have escalated...

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Jeff Geerling @geerlingguy@mastodon.social

· 3mo ago

I had a great time in Canada. The best time. https://www.youtube.com/watch?v=AHSqyuOPpf0

This Signal Runs the World, and it Comes From Space

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Jeff Geerling @geerlingguy@mastodon.social

· 3mo ago

I tested WisdPi's 10G Ethernet Expansion Card for Framework computers. Good news: It can hit 9.4 Gbps, in certain scenarios. And it'll be < $100. Bad news: It uses USB-C and that means the combinations where it'll hit full speed are limited 🥲 https://www.youtube.com/watch?v=fMXT6mEPR0Q

Is 10 Gbps too hot for a laptop?

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Jeff Geerling @geerlingguy@mastodon.social

· 2mo ago

I had the best time at Open Sauce—and I can prove it! (At least within ±1µs...). Full video here: https://www.youtube.com/watch?v=ziPIbxoFc_g

I can prove I had the best time at Open Sauce

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Jeff Geerling @geerlingguy@mastodon.social

· 5mo ago

This 10 Gbps USB-C adapter is under $100, tiny, and fast—check out the new generation of 10 GbE NICs in my video. If you need faster Ethernet, this may be the ticket! https://www.youtube.com/watch?v=zYZbZJZfCFI

How did they make it this small??

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Jeff Geerling @geerlingguy@mastodon.social

· 5mo ago

I enter the portal by standing on the top of a ladder, far beyond all warnings, with one foot.

See my latest networking shenanigans on the 2nd channel, video here: https://www.youtube.com/watch?v=wOtBHPaBg8U

Why does every new network install go this way?

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Jeff Geerling @geerlingguy@mastodon.social

· 5mo ago

One of the strangest Pi clusters I've ever seen... happens to be a commercial success, but most people looking at this box would never know it has 3 Pis inside!

Video here: https://youtube.com/watch?v=GYN7TH5y1CM

A most unconventional Pi cluster

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Jeff Geerling @geerlingguy@mastodon.social

· 5mo ago

I didn't beat a bunch of college students with my new SBC cluster, but it still performed admirably. In today's video, I tested the DeskPi Super4C in a new mini rack from Waveshare. Check it out: https://www.youtube.com/watch?v=AjmKpDNsTa8

Building a Tiny Supercomputer to beat college students

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Jeff Geerling @geerlingguy@mastodon.social

· 3w ago

Replying to

@jpaskaruk@growers.social Haha those were my 'time tokens' (said 'I HAD THE BEST TIME on one side, and 'VCF MIDWEST 2026' on the other), and some CRT tweaker sticks I printed after liking a design I found on printables: https://www.printables.com/model/276900-tv-set-crt-alignment-tool-tweaker/files

printables.com

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Jeff Geerling @geerlingguy@mastodon.social

· 5mo ago

Replying to

Also replicated some of these little Xserve rack mount bracket spacers: https://www.printables.com/model/1713195-intel-xserve-rackmount-spacer-bracket-805-7385 Learning more 3D CAD project by project! Also realizing materials matter a lot, and even ASA or ABS aren't amazing for tight screws and dynamic loads...

printables.com

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Jeff Geerling @geerlingguy@mastodon.social

· 3mo ago

Every mini rack needs a mini UPS

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Jeff Geerling @geerlingguy@mastodon.social

· 5mo ago

Replying to

Getting full remote control set up for each of them too, but still trying to figure out how to get them to power on remotely...

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Jeff Geerling @geerlingguy@mastodon.social

· 5mo ago

55th anniversary of the 555 going strong, with a Big Clive livestream (https://www.youtube.com/watch?v=jzNjFJdaw_I), and a video precisely 5:55 long published at 5:55 on 5-5 from @eevblog@mastodon.social - https://www.eevblog.com/forum/blog/eevblog-1746-the-555-is-55-years-old!/

555 at 55 with Big Clive Live

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Jeff Geerling @geerlingguy@mastodon.social

· 2mo ago

From my research, Reolink was supposed to be one of the best local-friendly cam companies... Strike 1: I can't set up my new Reolink camera without the App initially (web UI disabled by default). Strike 2: Can't add RTSP user even in app, so I have to use admin for RTSP?!

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Jeff Geerling @geerlingguy@mastodon.social

· 5mo ago

Raspberry Pi Connect might soon get a Windows server app, so you could control both Pis and Windows PCs through Pi Connect! https://forums.raspberrypi.com/viewtopic.php?t=397786

forums.raspberrypi.com

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Jeff Geerling @geerlingguy@mastodon.social

· 5mo ago

Replying to

@poopi@mastodon.online it's mostly because companies pick battles with tiny projects and individuals, instead of other companies. I don't blame an individual for not wanting to upend their life and plonk down $15k+ for lawyer help ($500/hour) just to be put under the big company's PR firm guns.

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Jeff Geerling @geerlingguy@mastodon.social

· 5mo ago

Replying to

@chris@nutmeg.social USB three point two gen two by two!

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Jeff Geerling @geerlingguy@mastodon.social

· 5mo ago

Replying to

@neasch@theblower.au @eric@geldmacher.io Yeah, trying to see if I can get a retro emulator to work with that app from macOS Tahoe...

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Jeff Geerling @geerlingguy@mastodon.social

· 5mo ago

Replying to

@VogueLaGalere@mastodon.online Yes, I hate that too. YouTube's really trying to get everyone to turn on all tracking :P I have considered PeerTube, but would need to figure out how to do some kind of fundraising campaign if I were to devote enough energy to it to make it nice.

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Jeff Geerling @geerlingguy@mastodon.social

· 5mo ago

Replying to

@kedMertens@mastodon.social one of the bigger ones is Fireship. Either that or the Jeff on that channel takes a tranquilizer dart before reading the script now

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Jeff Geerling @geerlingguy@mastodon.social

· 5mo ago

Replying to

@guigsy@mstdn.social Well and crazy folks like me who enjoy backing up TB of data over the pipe from video production :)

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Jeff Geerling @geerlingguy@mastodon.social

· 3mo ago

Replying to

@gnomon@mastodon.social i know @CraftComputing@hostux.social has used one, seemed to like it

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Jeff Geerling @geerlingguy@mastodon.social

· 4mo ago

Replying to

@MIfoodie@social.vivaldi.net @3dprinting@techhub.social I've heard good things about it and Snapmaker today, but haven't personally tested either.

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Jeff Geerling @geerlingguy@mastodon.social

· 5mo ago

Replying to

@gabriel@fedi.gvisoc.com @locnar@bsd.network Haha, I do have a 'fingerbot' from I think Sipeed or GL iNet, might try that

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Jeff Geerling @geerlingguy@mastodon.social

· 5mo ago

Replying to

@mrmacintosh@mastodon.social @NanoRaptor@bitbang.social lol reminds me of Carmen, even the hair style.

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Jeff Geerling @geerlingguy@mastodon.social

· 5mo ago

Replying to

@bradthornborrow@thecanadian.social @paul@tapbots.social I didn't get that, come a gain?

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Jeff Geerling @geerlingguy@mastodon.social

· 5mo ago

Replying to

@montef@mastodon.social It's tough — I look back and regret tossing some things... but also realize if I didn't, I would've had more stress managing the things I didn't toss! Going through that now with some of my AV gear (receiver, speakers, blu ray and DVD stuff...). Like I'm sure I'll regret getting rid of at least one of these things in a decade or two. But for now, better to have shelf space and peace of mind that it was taking up!

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Jeff Geerling @geerlingguy@mastodon.social

· 5mo ago

Replying to

@Asara@tilde.zone Yes, that's the best improvement overall, followed by 2x network jacks per Pi (2.5 and 1 Gbps)

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Jeff Geerling @geerlingguy@mastodon.social

· 5mo ago

Replying to

@aho@ioc.exchange I do, but some of the voices are good enough it takes a few minutes before I'm sure now :(

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Jeff Geerling @geerlingguy@mastodon.social

· 2mo ago

Replying to

@paul@tapbots.social heh

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Jeff Geerling @geerlingguy@mastodon.social

· 5mo ago

Replying to

@keyboardg@mastodon.social both! G5 on top, upgraded xeons on bottom.

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Jeff Geerling @geerlingguy@mastodon.social

· 5mo ago

Replying to

@sassdawe@infosec.exchange Haha neither do I, I just keep reorganizing my shelving to fit more and more :D

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Jeff Geerling @geerlingguy@mastodon.social

· 5mo ago

Replying to

@d_b_4_2@mastodon.social I watch a lot of channels here and there, it's just that AI is infecting a lot, slowly over time. Fireship is one of the more recent ones I noticed. On blogs (and Substacks, Mediums, etc.), it's a pandemic already. Harder to find anything new that's _not_ AI-generated.

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Jeff Geerling @geerlingguy@mastodon.social

· 3mo ago

Replying to

@rossmadness@infosec.exchange played through Myst again a couple years ago. Need to do Riven again soon. I have the new edition...

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Jeff Geerling @geerlingguy@mastodon.social

· 5mo ago

Replying to

@dtwx@mastodon.social audio interfaces and DSP chips

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Jeff Geerling @geerlingguy@mastodon.social

· 4mo ago

Replying to

@Walruths@mastodon.social Haha and so so many bed leveling failures :D

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Jeff Geerling @geerlingguy@mastodon.social

· 5mo ago

Replying to

@Geekman@mastodon.social Some of those things get mighty expensive now, like SAS-capable drive sleds!

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Jeff Geerling @geerlingguy@mastodon.social

· 5mo ago

Replying to

@guigsy@mstdn.social Yeah; for my home connection I'm considering dropping to 500 Mbps from 1 Gbps.

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