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TTYM #9
The world of minilabs + Pi-monitor + cool thing

Stuff that I find online as I go about my life as a maker, electronics engineer and overall proud nerd. You’re getting this because you registered on the supertechman.blogspot.com blog. I was a nerd before it was cool.
The World of Mini Racks: Compact Server Racks for Enthusiasts

Credit: Jeff Geerling https://www.jeffgeerling.com/blog/2025/project-mini-rack-compact-and-portable-homelabs
Introduction
Mini Racks—compact server racks—have gained popularity among tech enthusiasts in home labs and small-scale computing setups. These small, powerful racks allow users to organize and optimize their valuable computing resources without requiring a full-sized server cabinet - and with 100% coolness factor! For nerds like you and me, where playing with networking concepts is just a life necessity, Mini Racks offer a flexible and space-efficient solution that is hard to resist - if you don’t need one, you’ll make up some good reason for why you really do. Let me guide you on your search for meaning.
What is a Mini Rack?
I first got my introduction to all of this from Jeff Geerling’s project Mini Rack YouTube video. You’re smart and can tell from the name, but I will say that a Mini Rack is a small server rack, typically 10 inches wide, designed to house networking equipment, single-board computers (SBCs), mini-PCs, and other compact computing devices. Unlike traditional 19-inch server racks, Mini Racks cater to users who need a portable, space-saving setup for their home labs or remote deployments.
What do you need?
In general, a well-equipped Mini Rack consists of several essential components, some of which are summarized on the following table. Of course, different goals will mean different requirements (I can see many setups with the jet KVM device too, so add that too!):
Component | Function |
---|---|
Mini Rack Frame | Provides structure and mounting points for devices. |
Single-Board Computers (SBCs) | Raspberry Pi, Jetson Nano, or similar boards for computing tasks. |
Network Switch | Manages connections between devices. |
Patch Panels | Organizes network cables efficiently. |
Power Distribution Unit (PDU) | Ensures stable power supply. |
UPS (Uninterruptible Power Supply) | Provides backup power in case of outages. |
Storage Solutions | SSDs, NAS devices, or external drives for data storage. |
Considerations Before Entering the Mini Rack Hobby
Before diving into the world of Mini Racks, look at your bank account balance, abandon other less interesting hobbies (like anything that will keep you fit and in good health) and think for 3 minutes about these points:
Budget - Mini Racks can range from affordable DIY setups to high-end configurations. Consider your budget and prioritize essential components.
Space constraints - Ensure you have enough room for your Mini Rack, whether it's on a desk, shelf, or wall-mounted.
Cooling and ventilation - Compact setups can generate heat. Invest in proper cooling solutions to maintain optimal performance.
Power management - Plan for PoE or UPS solutions to prevent downtime and ensure stable power delivery.
Expandability - Choose a modular rack that allows future upgrades and expansions.
References and more information
As I mentioned, the first time that I ever heard about this was on YouTube (I have to stop watching YouTube, it’s ruining me), so I have compiled some resources to get you started on this exciting topic. If you are not a fan of moving pictures, there are also some articles you can read on the toilet.
YouTube videos
The Ultimate Homelab Server | 10" Server Rack – A detailed walkthrough of building a compact homelab.
What's In My 10" Inch Homelab Server Rack – A breakdown of components used in a mini server rack.
I Made the World's Smallest Server Rack - With UPS and SSD Storage – A creative approach to building a tiny yet powerful server rack.
The Jeff Geerling video I mentioned above (no, I will not put the link on here again).
Articles
"Project Mini Rack" Wants to Make Your Mini-Homelab a Reality – A guide to setting up a compact homelab.
Project Mini Rack - Compact and Portable Homelabs – A resource for mini rack builds and compatibility testing (Jeff Geerling blog linked to his many times mentioned video - this guy is like a nerd God).
(Famous) Last words
Go for it, build your own. Send me pictures.
Pi-Monitor: A Real-Time Performance Dashboard for Raspberry Pi 5
Pi-Monitor is a real-time monitoring tool for Raspberry Pi 5, providing a slick, web-based dashboard to track CPU load, temperature, memory usage, fan speed, and other system metrics. Built with Flask, Chart.js, and Socket.IO, it offers live performance stats with minimal resource overhead. If you’re looking for an efficient way to keep tabs on your Pi’s health, this project is worth checking out.
Find more details and source code here: Pi-Monitor on GitHub.
Funny because replace “hole” by “hard to solve software bug”

Credit is on the image, so it does not go here as usual!
That’s all folks!
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