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A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control.
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I personally have a handful of pi’s doing things, with plans to get more to do more (I have one in the mail to become my OpenWRT router). I was thinking of getting something simple to be able to do STT and TTS as I want to replace my HomePods as I slowly leave Apple and have have no interest in joining Amazon or Google for home automation, so I looked at my university’s used computers. I am not really a fan of buying some random persons old hardware but maybe a business is selling their old stuff.
I assume you are using pi 4 and/or 5? I would have some 3b+ laying around which don't see any use nowadays. But can't quite imagine to build a cluster only made up of these, I think they are too underpowered, unless being used as like a small additional worker node.
And buying new Pi 5 with 16GB of memory would set me back at least 200€ a unit, not including power supply or any case.
I have a pi 4 running HAOS, I have an 8 gb pi 5 running a bunch of services, with head room to spare. I have a pi 5 with 4gb ram running Jellyfin with headroom to spare. Both pi 5’s are also running pihole.
I also have a pi 5 with 2gb that will hopefully handle my personal blog and email, hopefully! I have a pi 5 with 1 gb showing up on Thursday that will run my OpenWRT and LuCI. I had a pi zero 2 that handled wireguard but it could only handle it for DNS, with OpenWRT on a pi 5 I will be able to do more than just DNS over wireguard.
I’m also in the PI 4 group. Its worth watching ebay, etc for people selling pi clusters. I picked up my 8 node 4GB pi cluster fairly cheap.
Also if you’re learning and find yourself struggling with yaml files, I found Claude helped a lot to get running. Create the file, dump it into Claude and let it re-output the file. Give it the error log helps if it gets stuck.
Also if you explain your cluster setup, I built mine with Talos Linux so setup VIP, etc and it’s pretty good at generating a working setup.
I’m not a huge fan of AI but I struggled with yaml formatting so it might suck for a lot of stuff but formatting stuff properly is great.. that and scanning logs for errors! 😎
I liked my Pi 3B+ for tinkering around and run some services like vaultwarden or a VPN node with PiVPN (first OpenVPN, later Wireguard). They are great for stuff like that and don't use much power. Not sure it makes sense to add them as nodes though as 2GB is stretching it, although Talos OS has a minimal requirement for worker nodes of 1GB, so I might still try 😄
As you can see I plan to use Talos as well, it sounds really promising what I read about it. For a CNI I plan to use Cilium and for distributed storage I might try Longhorn and see how it works. Apart from that I am still on the fence if I should run my nodes bare model or put a virt layer in between with Proxmox.