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Creator, writer, and open-source contributor, specializes in application scalability and DevOps.
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Recording vintage CRTs with a modern Sony mirrorless camera

2025-07-30 00:14:28

Recording vintage CRTs with a modern Sony mirrorless camera

Growing up, I remember recording CRTs with any camera was an exercise in frustration. You would either get a black bar that goes across everything, a slowly moving 'shutter' of darkness over the screen, black frame flickering, or even a variety of bright artifacts, especially when moving the camera around.

Mac Classic CRT with flicker line

Just setting your camera's shutter speed to match the refresh rate somewhat closely is usually enough to make it at least bearable (I start at 1/60th and see what looks least annoying).

But I recently discovered, while recording an old Macintosh Classic's CRT, that my Sony A7CII has a built-in anti-flicker feature that's... actually amazing.

Jeff Geerling

Open Sauce is a confoundingly brilliant Bay Area event

2025-07-23 00:12:03

Open Sauce is a confoundingly brilliant Bay Area event

Joe and Jeff Geerling at Open Sauce 2025

This is the second year I brought my Dad (a now-retired radio engineer and co-host of Geerling Engineering) to Open Sauce, a Bay Area maker faire-like event, dreamed up by William Osman and featuring hundreds of exhibits ranging from mad science, to vintage electronics, to games, to world-record-breaking Rubik's Cube solvers:

Jeff Geerling

Adding GPS and off-grid maps to my Meshtastic T-Deck

2025-07-17 05:08:03

Adding GPS and off-grid maps to my Meshtastic T-Deck

Meshtastic is still a bit touch-and-go sometimes, but the St. Louis area Mesh has grown quite a bit, to the point I can regularly mesh with 10-30 other nodes. So far we can't quite get the entire metro covered wirelessly, but there are a few gaps MQTT is connecting currently.

Meshmap.net - St. Louis Missouri

One thing I hadn't really thought about—but can be useful, especially for visualizing the mesh—is GPS positioning on the mesh node itself.

Jeff Geerling

Upgrading an M4 Pro Mac mini's storage for half the price

2025-07-11 22:00:11

Upgrading an M4 Pro Mac mini's storage for half the price

A few months ago, I upgraded my M4 Mac mini from 1 to 2 TB of internal storage, using a then-$269 DIY upgrade kit from ExpandMacMini.

At the time, there was no option for upgrading the M4 Pro Mac mini, despite it also using a user-replaceable, socketed storage drive.

M4 Pro Mac mini guts with M4-SSD 4TB Upgrade Installed

But the folks at M4-SSD reached out and asked if I'd be willing to test out one of their new M4 Pro upgrades, in this case, upgrading the mini I use at the studio for editing from a stock 512 GB SSD to 4 TB.

Jeff Geerling

Mini NASes marry NVMe to Intel's efficient chip

2025-07-04 22:00:57

Mini NASes marry NVMe to Intel's efficient chip

Mini NAS lineup with Coffee Mug

I'm in the process of rebuilding my homelab from the ground up, moving from a 24U full-size 4-post rack to a mini rack.

One of the most difficult devices to downsize (especially economically) is a NAS. But as my needs have changed, I'm bucking the trend of all datahoarders and I need less storage than the 120 TB (80 TB usable) I currently have.

Jeff Geerling

You will own nothing and be happy (Stop Killing Games)

2025-07-03 00:25:10

You will own nothing and be happy (Stop Killing Games)

tl;dr: If you're an EU citizen, sign the Stop Killing Games initiative here. Or, if you're in the UK, sign this petition.

A month ago, I had a second video on self-hosting taken down. YouTube said it was 'harmful or dangerous content'. I appealed that, but my appeal was rejected.

Luckily, I have enough reach I was able to get a second chance. Most content creators aren't so lucky, and content about tools like Jellyfin and LibreELEC get buried over time.

But it's not just self-hosting.

Note: This blog post is a lightly edited transcript of my most recent YouTube video, You will own NOTHING and be HAPPY (SKG).

Jeff Geerling