You could put your weed in there.

4GB RAM? That's a whole vanilla Minecraft Java edition server right there, for free! :)

Install home assistant on it

You could check for Linux support. I suppose it runs on an Arm-Processor.

Maybe it runs PostmarketOs.

Edit: If you can run Linux on it:

Selfhosted:

• Gitea (If you are a programmer)
• Stash (Organized NSFW-Content ( ͡° ͜ʖ ͡°) )
• Nextcloud
• Simple-Server ( NAS/SFTP/SSH)
• MeTube (Youtube-Downloader)
• Kitchenowl/Mealie (Kitchen-Organization / Mealprep)
• Lute (Selfhosted Alternative to Duolingo)
• Speedtest (Monitoring Internet-Speed)
• wishlist
• Hortusfox (For managing your Plants)
• MotionEye (Security-Cam-Monitoring)

On-Device:

• Libreelec/Kodi (Media-Device)
• Retroarch (Retro-Gaming-Station)

Because it's low end I'd put :

• headless Debian pre-configured with WiFi and sshd to then add
• CopyParty via its single .py file
• apt install minidlna to serve media files back to add devices on LAN, e.g. VLC on desktop and mobile devices
• mount a large microSD for data
• I'd add a WireGuard VPN configuration file and make both accessible outside the LAN but only on my devices

All that is relatively quick if you have done it before (maybe 30min total) and can run 24/7 for years requiring very little power.

homelab

LibreElec (Kodi pirating box)

There's probably some lightweight Linux distro you can get to run on it. It could be used for some edge computing, like Pihole.

I would use that to make it a vpn passthrough for my work so I could dich windows 11 for good and use Linux on my main rig.

NetBSD. This box seems to have a vanilla x86 processor and it has plenty of resources (for NetBSD, that is). You can't use this as a daily driver, but it should be good enough to learn UNIX and/or self-host some stuff.

Pretty much only good for a headless debian file server

Noice run a local LLM on it! /s or /as idk

I have something like that set up as a discrete print server. Also one as the mini file share for the guest/untrusted devices network.

I have pihole lumped in with a more substantial machine, but these little guys are always nice for retro gaming up to the N64/PS1 era.

I used one of these (might even be the exact same model) as a little music player attached to an old soundbar. I could connect via ssh and play music through the speakers. The main challenge was finding a distribution that worked well with the internal sound card, since I wanted to use the aux output for sound. I don't think that I ever tried connecting a monitor to it, but it worked well for what I used it for, right up until I needed the sound bar for something else.

You could install Batocera and use it as a home theatre PC and retro gaming station.

Sell it. Put your money earned to buy a general computer to tinker with instead.

If you have the skills you've already been tearing it down, soldering some pins, and compiling your modified uboot/EFI firmware and flashing it. The hack above has only like twenty people in the whole world who know how to do.

If it was a TV box and still functioning, there are people out there genuinely have a valid use case for it, to watch TV of course. Don't ruin it.