Set it up as a PiHole.
Which reminds me: I need to finish getting mine hooked up to my LAN properly.
this post was submitted on 12 Feb 2026
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Same. I got mine a static IP, but everything I try to make it work, I get no network at all.
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Mail it to me
Close. Mail it to me lol
Mail it to me too please
Is it too late to add myself to the queue?
Damn Brits always trying to get into a queue.
Jellyfin server
Sell it for double your money back.
Pi hole if you don't have one, others have mentioned home assist, you could also look at ubo pod, although that isn't out yet. Really just use it to host whatever you want
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PiHole and Plex? Plex will help generate need for a NAS. It worked for me.
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Useful? I think you're doing this hobby wrong.
/s.
Set up a Tor Relay. Help the Tor network.
I have a Pi 4 running as a PiHole and Pi 5 running as an SDR server with 2 radios attached to it. Both are connected via Tailscale as well so I can access both from anywhere I want, especially useful for the PiHole so I have adblocking anywhere on any device.
The Pi 4 is massively overpowered for a PiHole, but if you got one laying around doing nothing, go for it.
I have my PiHole running on a Pi Zero with a USB Ethernet adapter. The WebUi is a bit slow, but the actual DNS with unbound as a backend isn't any slower than on a Pi 4.
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Set up Pinchflat, automatically download podcast audio without ads, connect your podcast app to it via an rss feed.
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RetroPie? A Pi can handle most of the older, amazing games.
Pi4 is better for anything with video as it has a a hardware decoder. They dropped the hardware decoder in the Pi5 and I think you need to buy an extra module to have one for them.
Oh wow, thank you. I didn't know that!
I literally had the the same pi collecting dust. I put it in an aluminum enclosure with an M2 bus, added a spare drive, and put home assistant os on it. SUPER FUN. now all those sensors and ESP32s I have can provide meaningful use to my life.
If the pi ends up with a flavor of Linux:tux:, don't forget the ZRAM compression.
On my debian I use default settings and end up with nearly double available memory.
It also reduces disk usage by giving ZRAM priority over swap.
The rp5 could be a:
Luanti/VoxelLibre server
Kiwix Wikipedia server
Pi-hole of course.
My rp4 can run the three just fine.
Could try something like home assistant
(Rp4 is just a little underpowered but can function)
Could also turn it into a NAS.
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Desktop PC
Look up Pi-Hole, it's an adblocker for your whole home network. It blocks ads at the DNS level
Folding@Home
Distributed computing project that allows you to contribute CPU cycles to scientists searching for cures for things like Alzheimer’s and cancer.
Step one, put it in my hand.
Step two, take this $3.50 in all pennies. Those are valuable. They fon't even make those pennies anymore, and thats 350 of them! All for you! Honestly, you're making out on this deal.
Step three, ..........
as heard in the distance
.......sucker!!!
Send it to me, I have plans.
I have one pulling double duty as a Pi hole and emulation console.
The wife and I made a retro game console. But we mostly use it for kodi
You could host your own federated instances.
Pipboy
If you have access to someone with a 3d or can find the parts online; you could build a gameboy with it.
Look at selfhosting apps. Pihole is popular since it has some immediate benefits for other devices in your network. HomeAssistant is amazing if you're into automation. But there's hundreds of cool selfhosted apps that can improve your life depending on your interests. Getting familia with Docker will open up a lot of doors for easily launching servers hosted on the pi. What are your hobbies?
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