For the past few months, a couple of ARM-based mini PCs have been in my online shopping cart. What really caught my attention was the passively cooled chassis and low idle power consumption, which are suitable for my home lab experiments. Plus, the price seems good enough to not hurt the wallet.
Apple’s Mac mini, with Apple Silicon, has already proven that Arm chips can far punch above their weight class. Devices based on the newest ones. Snapdragon X Series targets a premium group, while Rockchip’s RK3588 is in the more premium group. Affordable SBC and mini PC level. Those performance per watt figures are hard to ignore.
He space for mini PC I was starting to take notice. All I wanted was a small always-on box hidden behind the monitor to run a handful of self-hosted services. That’s what made me want to pull the trigger. But after researching whether it would actually work in my home lab, I took a step back.
The operating system options are more limited than I expected.
Arm mini PCs check a lot of boxes on paper
like a x86 mini PC ownerI took some things for granted. The most important thing is that I can use any operating system and it just works. Of Proxmox to Ubuntu server, or even Windows 11. The mini PC runs everything on x86 hardware. This flexibility is why an x86 mini PC is part of my home lab. You can always reuse the case as your needs change without worrying about whether the hardware underneath can support your favorite operating system.
ARM mini PCs lack the same freedom. Many of them come with Linux or Android customized by the vendor. Those custom operating systems are tightly coupled to System-on-Chip hardware. Therefore you will have problems with lack of proper kernel support and sometimes it is non-existent.
I was planning to run a community-supported OS, but that requires custom kernels, patches, and device trees that may or may not be maintained. Unfortunately, Proxmox is not officially supported on ARM. A forum thread covered a partial solution, which was mentioned several months ago.
That means my always-on home lab would depend on maintaining a stranger’s GitHub repository. Not exactly a stable foundation for something I want to put together and then forget about for months.
More than half of containers lack ARM versions
Docker is where things really untangle
Docker was where compatibility issues first appeared. I looked at the Docker Hub pages for services like a media server, a reverse proxy manager, and a couple of monitoring tools. That’s when I learned that Arm64’s coverage was inconsistent across the board.
I found images of multiple architectures, but several had Arm64 labels that were months behind the main release. Those community-maintained tags had several open bug threads. For a container I rely on daily, the last Arm64 build was over a year old.
On Mac, Rosette 2 handles the translation from x86 to Arm silently in the background. Linux has no equivalent. Docker allows you to pull x86 images and run them using QEMU emulation. But that’s not a clean experience. You’ll face slowdowns, unexpected crashes, and unhelpful debugging sessions. You’ll be chasing a quirk of the emulation rather than an actual problem with your setup.
The few tools I use don’t have any wrappers compatible with the ARM platform: CLI utilities, sync clients, and a couple of home server applications that work only with x86_64 binaries.
If the app doesn’t include an Arm build, building from source is technically an option if the project is open, but that puts a lot of overhead on the tools I just want to run. This is not a problem with popular projects as they tend to support multiple architectures. So the unavailability persists with niche self-hosted applications which are not compatible with ARM.
Who do ARM mini PCs really work for?
It’s not a bad platform, but not for my use case.
For a clean, Arm-native home server workload, these mini PCs are really attractive in terms of hardware. If you plan to run a lightweight NAS, pi holeand other utilities, the power efficiency and low noise profile of an ARM mini PC make a lot of sense. Qualcomm’s latest chips, in particular, are delivering impressive results. The trajectory of the ARM ecosystem on Linux is clearly going in the right direction.
But my stack is the opposite of the one specifically designed. It is a collection of containers and tools that solved a problem at the time. That’s exactly where Arm’s ecosystem gaps hurt the most. For an opportunistic home lab, that friction adds up quickly.
Friction disappeared with an x86 mini PC
I ended up buying a x86 mini PC. A N100 based box it idles between 5 and 8W, which is competitive with most ARM devices I was considering. Proxmox installed on the x86 mini PC without problems. Every container I pulled ran as a native image and started on the first try. No workarounds or emulation were necessary.
The ARM ecosystem on Linux is maturing. I would revisit it in a year or two, especially if the projects I use in my home lab are supported by multiple architectures. Right now, an ARM mini PC is still a long way off if you plan to run a real lab workload at home rather than a single dedicated service. You’ll be better off with the x86 architecture that handles everything and gets out of your way. Sometimes, that’s exactly what it takes to build a home lab.
