I’ve been told that government auctions canbe a good source for cheap used PCs

Can confirm government surplus auctions or sales are a great source for cheap PCs and that they do get snatched up quickly (guilty!) The only other catch is they never come with hard or solid state drives. I’m assuming those just get pulled and destroyed.

Thanks, and yeah, it’s been fun putting that all together. Unfortunately I’m still learning FreeCAD so they’re not as integrated as I’d like yet, but as soon as I have time to hammer out a design, I hope to have all 3 of these and the UPS/power supply in a nice case.

Yep, running/charging it from solar is why I ended up getting that chonky 18650-based UPS board. It’s the only one I could find that could combine 5V input and battery without dropping out (battery kicks in immediately if solar insufficient and draws the difference between input and output and charges and powers simultaneously otherwise).

Thanks!

What are the use cases for taking it with you instead of just connecting to your homelab?

I built it just to see how much I could cram onto a Pi Zero clone/how many self-hosted services I could have on something I can fit on my keychain, and the answer was “a lot”. It’s something of a travel server, travel router, emergency backup server, etc.

I mainly just wanted a subset of my homelab services available in something I could take with me anywhere. Home lab could go down while away, power could go out, something to use while glamping, can take it with me if there’s ever an emergency where I have to evacuate, etc.

What started out as a single unit has become a three unit portable stack lol. Yay feature creep!

Services

• Jellyfin (all content pre-transcoded so everything can direct stream)
• CodeServer (setup for Python, NodeJS/Bun + React, and Platform.IO for ESP8266/ESP32 development)
• Kiwix (including the full Wikipedia dump with images as well as offline docs for lots of code libraries I work with, etc)
• SearxNG so I always have a sane search engine available
• CalibreWeb with my whole ebook library
• MPD+Snapcast+My whole music library. Also has myMPD web UI for controlling MPD. Snapcast clients can connect, and it can serve multi-speaker/multi-room audio
• PiHole serving both ad blocking and local DNS as well as providing DHCP for the access point
• PairDrop for sending/receiving files
• NodeRED and Mosquitto MQTT for setting up ad-hoc automations
• Nginx with real LetsEncrypt certs so all services have valid SSL certs and hostnames

Networking

• One USB port is configured in ethernet gadget mode. Can plug it into a host PC and get an IP address from it
• One wifi adapter is setup as an AP and is bridged with the USB ethernet (a PC plugged in and a wifi client are on the same L2 plane).
• The second wifi is the “WAN” connection if one is available. Can alternatively connect to USB tethering on my phone
• If there is any kind of “WAN” upstream, the LAN bridge (USB ethernet/Wifi) will route to it
• Wireguard to connect back to my homelab.

File Services

• Samba
• Encrypted LUKS volume for critical docs (tax records, vet records for the dogs, etc)

I’ve got a second unit that connects as a client to the main one with some additional backup services:

• Email stack( Dovecot, Postfix, SpamAssassin, ClamAV, Webmail)
• Matrix/Synapse stack
• Asterisk
• Snapcast client

The second one is basically a backup to my main stack in case of disaster/power outage/etc. Those all tunnel to a cloud VPS + load balancer and only need an internet connection to setup the tunnels to receive traffic from the VPS (and route back out to it). Those services are stopped and a cron task keeps them in sync with the main ones in my homelab. If I need to fail over, I just SSH into the VPS and re-route traffic to them instead of my homelab endpoints.

I self-host my own email and chat and phone services, so those have become critical services I want to always have online. Essentially these little Pi clones are a backup stack for my most used services and one that is both extremely low power and portable should I ever need to host them on the go (house burns down, have to evacuate due to emergency, etc).

Third Unit (Still on the bench)

I have a third unit that’s built on a PiZero2W but it’s still on the workbench (but functional!). Just haven’t gotten any kind of case at all built for it.

It’s got two RTL-SDR units attached. One is tuned to the NOAA weather radio station and feeds into Snapserver on the main unit (so you can listen to the weather radio anywhere on the network) as well as piped into Meshtastic EAS-SANE alerter in order to forward emergency alerts to Meshtastic. There’s a USB-connected Meshtastic node attached as well for that.

The second RTL-SDR is setup as a generic FM radio tuned to the local variety station. It’s just piped to Snapserver on the main unit to make it available on the network.

I may convert the second SDR into a ADS-B listener, but for now, I like having the FM radio available.

I run Jellyfin on a Banana Pi M4 Zero. It’s a little less capable than the Pi4 but runs JF just fine. Specs on this one are quad core 1.5 GHz, 4 GB RAM, 32 GB eMMC on Armbian.

The media files are all on the 1 TB SD card while the Jellyfin data directory (especially the SQLite DB) are on the eMMC. This seems to work much better as the DB file kept getting corrupted on SD. Should also help the SD card from wearing out since it’s pretty much only reading data from it most of the time.

As you guessed, transcoding is not going to work (JF is removing the v4l2 hardware support anyway), so I pre-transcode them to H264 + yuv420p in an mp4 container before moving them to the SD card. I also scale them down to 720p to fit more on there, but that’s because this is a travel server and isn’t my main media source.

Can’t speak for Paperless though.

GLaDOS/GabeN: They’re sentient, you know. I think that one was about to say “I love you”.

Mine’s only for people I know personally, so it’s backed by my LDAP server and registration is disabled in Synapse. I use my regular onboarding process to create the new LDAP user and grant access to Synapse.

Nice! Those AllWinner boards are a little tricky to get going and have some quirks, but the price is great for the extra horsepower you get. Granted, I use the latest Armbian since the manufacturer’s images are all quite old.

130GB for the entire thing? And the pi doesn’t choke on indexing / searching it?

That was my thought. I knew it couldn’t hold it in RAM but thought it would be doing crazy IO and limited by being on SD, but it seems to not be a problem. Like I said, I don’t know how ZIM does it, but it does it well. Must have some kind of index that lets it fast travel to the correct blocks or something. I dunno lol.

how capable is the search engine (I assume it has one?)

Yep, it has search. It’s…okay but kind of primitive. It’s not slow, and if you’re searching for something that’s fairly unique (as far as keywords go), it does well. But if you’re searching something like an acronym where it shows up as a regular word in other entries, it’s a lot more hit or miss.

Yep, and I love it.

I’ve got a little Banana Pi M4 Zero (PiZero form factor but much more powerful and with 4 GB RAM) loaded up with, among other useful tools, Kiwix and the full Wikipedia dump. I just refreshed it with the 2026-02 full dump, so I’m caught up for the year. I’ve also got a lot of other offline docs loaded up (React, Bun, and the devdocs for several libraries I use) and it’s nice to have local copies of those instead of googling every time.

Surprisingly, the full ~130 GB Wikipedia dump works fine on a regular Pi Zero 2 with 512 MB RAM. I don’t know how ZIM works but it does work very very well.

I get that it isn’t the same but when all you have is a garbage version of a memory, I’m not sure or really matters whether the representation is the original garbage or something that makes you feel less regret over not having something better.

In my experience, the worse the photograph the better my memory of it. Probably because my mind is already used to filling in the blanks in the garbage version, so it’s constantly refreshing the memory in my mind to keep it vivid. YMMV obviously. I’m also not much of a shutterbug and prefer to commit moments to memory than try to fight with my phone to snap a photo I’ll probably never look at.

I was surprised by that, too. When I went looking for a way to decode them with RTL-SDR, I assumed it wouldn’t be parsing the audio but a narrowband data stream. TIL also.

Edit: It does kind of make sense with it being AFSK encoded in-band, though, or maybe I’m just so used to it being that way. I always thought the screeches were there to demand attention (and also be something that headend equipment can pick up and respond to). So it’s interesting they’re doing double duty as both an unmistakable audio cue to pay attention as well as containing the actual alert data.

Plus there are NOAA stations all over the country rather than centralized like the time signal transmitters. It was probably cheaper to do it in band at that scale.

That’s what I’ve done for years. Makes managing things much easier, and I run multiple APs (all with the same SSID/PSK) and you can just roam to the best one. One upstairs, one downstairs, one in the weird dead zone in my office, and one on the back patio (it’s not hardwired and uses the mesh connection for uplink).

These are all old Aruba APs running OpenWRT but that’s the plan for this Cudy Model. I may pick up a few more and just replace all of my trusty but very old Arubas.

I bought this one last month when it was on sale for $39: https://www.amazon.com/dp/B0BRK3CYY3

Haven’t deployed it yet, but it’s fully supported by OpenWRT. I would only be using it as an access point, though. My router is a USFF Optiplex with an extra NIC and runs OpenWRT.

Loops finally seems usable now. I tried the beta a while back and it was kinda “Meh” but it’s improved significantly since. And you can browse on the website now, too. I’m not into short form videos, but credit where it’s due.

Well, I do like short form videos, but I hate panning for the gems and just let my friends send me the ones that rise to top.

It’s so common for “anti-censorship” to be code for “Nazi-friendly” that I’m immediately suspicious of any platform that uses that as a selling point.

I’m similarly suspicious, but it’s not just code for “nazi-friendly” but also crackpots, maladaptives, etc. Rational people who read and say “anti-censorship” in this context know it means that it’s not beholden to corporate or government interests. But everyone else seems to want to interpret that as “I can say whatever I want! How dare you mod anything I say?! Freeze-peach, y’all!”

I wish they’d pick a different term for these non-corporate alternatives, but I don’t have a better suggestion to offer right now.

The irony of Lennart “let’s change everything about Linux because I know better” Poettering creating a company called Amutable is not lost on me.

But also, that tracks because now it’s “I know better so now you can’t change anything” which is pretty on brand.

The base system is stable. The only instability I really had with mine was the fingerprint sensor resetting every week. It would just stop registering until you turn fingerprint detection off, reboot, and re-enroll all of your prints. The second update they pushed seems to have fixed that.

Their default launcher could use some work. I replaced Minimal Launcher with a similar one that works identically. The problem with Minimal Launcher is it is hardcoded to certain apps. I’ve de-googled mine so I don’t use Google clock or calendar. Clicking the time or date in Minimal Launcher will only take you to Google Clock or Calendar (respectively) rather than asking what app to open or trying to detect the default app for that. I submitted a bug for that a couple months ago but so far no fix.

They also seem to only update their software (launcher, quick settings, keyboard config, etc) through system updates rather than via apps. You also can’t disable any of them either.

I also haven’t heard anything more about them supporting non-Googled or third party Android builds.

The hardware is the same AFAIK but they’ve put out two three software updates since I’ve had it. One added some extra features to the eink control utility and the second fixed some really annoying bugs with the fingerprint sensor. Both also included the system security updates as well.

There was a 3rd one a few weeks ago, but I think it was just a security bump. It wasn’t announced and just showed up. There may have been some tweak to the QWERTY keyboard utility because now the annoying bar that only indicated the ALT/Shift status at the bottom is no longer there and was happy to no longer see.

I was prepared for 6, but I’m good with 8. Thanks!

Same. It would definitely be my daily driver. I’m using the Minimal Phone now but have often found that I would rather have this same form factor with a regular screen, and the Communicator seems to basically be that. I am still deciding if I want to pre-order but I’ve set a reminder to do or don’t before the window closes.

According to the support ticket I put in a week or so ago, the bootloader will be unlockable which is great news.

The only thing the specs don’t mention is how much RAM it will have.