Jeff Geerling is a maker, author and open source developer who shares Raspberry Pi experiments, homelab builds and practical lessons through videos, books and a long-running blog.
At 100 nudges, fangea sends Jeff’s team an official invite.
🔒 Star boosts open once Jeff claims this page.
Jeff’s highlights, collected from public sources, plus their backstory and Starbook, where fans write.
Jeff documented swapping a noisy fan in a Calnex rubidium/GPS frequency reference for a Noctua model, making the timing equipment easier to live with near their desk.
jeffgeerling.comRead the fan swapJeff tested and opened Ubiquiti’s $99 vape and air quality sensor. They found a real CO2 sensor inside, while noting that the device needs UniFi Protect to work.
jeffgeerling.comRead the teardownJeff shared their first experience with resin 3D printing using a Formlabs Form Studio 1. One of their prints was a clear MacPicoModem enclosure for a vintage Mac project.
jeffgeerling.comSee the printer reviewJeff benchmarked the Qualcomm-powered Q8B against the Raspberry Pi 5, finding strong performance alongside frustrations with Linux setup and availability.
jeffgeerling.comRead the Q8B reviewJeff announced a gathering for homelab and self-hosting enthusiasts in the St. Louis area, planned for September 12–14, 2027. Registration opened with the announcement.
jeffgeerling.comRead the HomelabFest announcement
Open source
YouTube
Book
BookHow it started.
Jeff’s first web project helped a radio station display the song currently playing. Their dad, a radio engineer, suggested the idea and also introduced them to electronics. Jeff went on to work in web development and infrastructure, including roles at Acquia and Ansible by Red Hat.
Writing what they learned.
In February 2014, Jeff began releasing Ansible for DevOps a few chapters at a time. The first complete edition followed in October 2015, with a second edition in 2020. Books and free tutorials became another way to share the lessons from their software work.
The channel takes off.
A 2020 series about a Turing Pi Raspberry Pi cluster brought rapid growth to Jeff’s YouTube channel. In early 2021, the success of the channel and books helped them leave their final paid consulting job to focus on writing, videos and their own projects. Viewer support through Patreon and GitHub Sponsors helped make the move possible.
Room for more experiments.
Jeff’s projects range from connecting a Raspberry Pi to a rack of enterprise hard drives to building compact, portable homelabs. Project MINI RACK opened that work to other builders in 2025. The main channel reached a million subscribers that October, and in 2026 Jeff announced plans for HomelabFest.
I love the privacy aspects of it.Jeff Geerling, interviewed by Andrew Gregory for HackSpace, republished by Raspberry Pi
On running home systems locally with Raspberry Pis rather than relying on cloud accounts, November 10, 2023.
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Highlights are compiled from public sources and link out to them. Page researched October 30, 2026; data confidence: high. Fan, Star and leaderboard figures are placeholders.
