You should be able to make a snapshot and restore to the new server.
While you’re upgrading why not go all the way and get a low end NUC? It’s a little more cost for a lot more power and future expansion possibility. I use this one with a cheap SSD that’s way more reliable than the sd card in a pi.
https://www.amazon.com/Intel-NUC-Essential-Kit-NUC6CAYH/dp/B01MSZTD8N
Recomendo dares uma vista de olhos nas intel NUC mais baratas, vale a pena se precisares de mais performance ou IO. Se ja tiveres uns sticks de ddr3 e um ssd diria que vale a pena. https://www.amazon.es/Intel-NUC-BOXNUC6CAYH-Ordenador-CELERON/dp/B01MSZTD8N/ref=sr_1_7?__mk_es_ES=%C3%85M%C3%85%C5%BD%C3%95%C3%91&dchild=1&keywords=intel+nuc&qid=1629915124&sr=8-7
I've been running Proxmox on a NUC (this one) for the last 2.5 years with no issues. It has a Celeron J3455 in it and I added 8GB of RAM and a 480 GB SSD.
Running a VM with Debian and Docker installed that runs Home Assistant, Node Red, Mosquitto, and a bunch of other home automation related containers.
Also running a few LX containers for OpenVPN, Wireguard, a Unifi controller, and PiHole.
No issues with speed at all, granted these aren't resource intensive programs either. I think you'll be fine with what you intend to use it for. Just don't expect it to be a good, transcoding Plex server or NVR or something like that.
I bought this guy:
https://www.amazon.com/gp/product/B01MSZTD8N/
a few years ago, as a media center, and it also works great for stepmania. I've had exactly zero issues. Lots of USB ports, HDMI audio/video works great, ethernet and Wireless AC all there. The processor and ram are limited, but you actually just don't need much on that front for Stepmania.
It doesn't come with storage, so you'll need something for that. I bought a 60GB SSD for $33, though if you wanted to go cheap you could use a USB stick for <$10.
EDIT: As a plus, the intel NUCs are all tried and tested technology with really good linux driver support, so everything just works. The experience on the thing has been completely seamless.
Consider getting something like an intel NUC. I'm running on an old one of those, and have had exactly zero issues. I'd recommend buying the stripped down version (no ram or hard drive) and then adding a hard drive and ram to save some money. All in, you can get a working system for less than $200.
Here's an Amazon link: https://www.amazon.com/gp/product/B01MSZTD8N/
These tiny computers are great for stepmania because they have more than good enough specs, and have hardware optimized for power use, reliability, and space. The result is a tiny machine that doesn't make any fan noise is cheap, and does absolutely everything you need.
Not sure about that Atom, it's ultra low powered so you'd be relying on hardware accelerated video decoding, and I have no idea if the built-in graphics chip supports it (Google says maybe?).
I think this would be a perfect use case for the AMD Athlon 200GE, a very cheap but still quite fast dual core CPU with a fairly capable graphics chip. You could build such a system for about $150, the only downside is that it would be desktop sized. Building a small system would be more expensive, about $250 with the AsRock Deskmini A300 (bought that one recently and can definitely recommend it).
Intel NUCs are also a great option for this, like this one. The CPU and graphics are like 5x slower than the 200GE, but it should work fine for your use case. This will cost about $200 so I feel like AMD is a better option.
Running a Celeron NUC (LINK) with 8GB of RAM and an SSD with the Aeotec stick for Z wave and Nortek stick for only Zigbee (I don't use it for Z wave).
I run Ubuntu Server 16.04 LTS with Docker. Currently have 32 containers going (a few don't run all the time) including Home Assistant, Node Red, Mosquitto, HADockermon, Google Assistant Webserver (essentially the HASSIO addon in its own container), MariaDB, InfluxDB, Grafana, and Unifi to name a few.
I have a Celeron NUC (LINK) with 4GB RAM and a 128GB SSD. It runs 23 Docker containers including Home Assistant, Node Red, Mosquitto, SQL, Influx, Grafana, SabNBD, Radarr, Sonarr, etc. etc. Its super fast, the CPU is no where near capacity, and RAM sits around 65% used. Its one of the cheapest NUC's too (~$125 + RAM + SSD).
Don't think you need an i3 or better unless you want to run Plex Media Server or something like that (I used my Nvidia Shield).
I'll probably throw another 4GB of RAM in soon just because.
It will not play HDR but will play other 4k hevc 10bit content. If you plan on using 4k in the future, some of the apollo lake products have hdmi 2.0 via dp > hdmi 2.0 converter chip and some do not. Without hdmi 2.0 they are only capable of 4k @ 30hz instead of 60hz. This is the nuc I have. There were alot of problems originally with the dp > Hdmi 2.0 converter chip. They have to have firmware updates that can only be done in windows. Hopefully by now they are being shipped with the updated firmware.
Yea I was considering the Nucs, but then you have to add the memory and a HDD, I believe.
Though it would still be probably $200-250 I assume.
I'd suggest a used computer off of ebay. You can get a slim form factor 2nd Gen i3 Dell Optiplex w/ 4GB of RAM for $55. It will perform significantly better than an RPi for Plex and for not much more either. All you'd need is a boot drive for whatever OS you choose or a flash drive w/ FreeNAS. As for not having a monitor, you'd need one to set it up initially, but that's it. Once you get the OS loaded and SSH server installed, you can manage it remotely.
If you really need as small of form factor as possible, I'd suggest an Intel NUC, but it's a big jump in price.
Here's my setup. It's totally overkill on the RAM and SSD, but you don't save much if you get smaller amounts and this way I can use the PC for something else in the future if I need to. I connect one side of it to my WAN (which for me is USB-C to a WiMax modem) and the other side Ethernet goes to my Archer C7 WiFi Router running DDWRT (which the only thing I configured is the WiFi names and passwords, everything else is default).
If your WAN modem is via Ethernet, you can do it via either a USB-Ethernet adapter or a smart switch (which seems like the best idea). There's a good post here about it:
https://www.reddit.com/r/PFSENSE/comments/dx7hgv/converting_single_nic_minipc_into_pfsense/
Here's what I used:
https://www.amazon.co.jp/gp/product/B01MSZTD8N
I'm looking online right now and found theses three. I guess that could work.
Would this running some form of LINUX distro with one of the Hub softwares on it (and any other dongles for signal compatibility required) be a decent purchase? Or should I stick to one of the ecosystems that has it's own hub?
https://www.amazon.com/INTEL-NUC-Kit-Component-BOXNUC6CAYH/dp/B01MSZTD8N/
https://www.amazon.com/IEZFIX-Internal-Solid-Desktop-Laptop/dp/B07DBYV2N6/
One option is to go with a Synology. There are a lot of models to choose from, you could pick one with enough power. There are pros and cons with Synology. I used one for several years until a software update corrupted the raid. I had a backup, so not big deal, but my trust level in Synology went to zero.
Another option is a linux server. I got an Intel NUC (and 8gb ram + 128gb ssd): https://www.amazon.com/gp/product/B01MSZTD8N/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
And this enclosure: https://www.amazon.com/gp/product/B00KCEAXJW/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
I now have everything I had with the Synology plus a whole lot more power and versatility. You could even bump up to the i3 for a little more. The great thing about these NUC's is they use very little power and are extremely reliable. I have several that have been running 24/7 for years without even a hiccup.
Okey, i switched to the Intel NUC6CAYH since is almost same price but look like higher quality and better CPU :
https://www.amazon.fr/Intel-BOXNUC6CAYH-Arches-Canyon-Nuc6cayh/dp/B01MSZTD8N/
something like this may be ideal, plex recomends a cpu benchmark of 2000 for ever hd transcode stream - and this puts you on the mark. http://www.cpubenchmark.net/cpu_lookup.php?cpu=Intel+Celeron+J3455+%40+1.50GHz