I use a mini PC with a wireless keyboard and mouse. There are also remote controls for media PCs if you don’t want to use a keyboard and mouse.

That idle power consumption doesn’t seem right. That’s less than a Raspberry Pi.

Banking can be done in person at the bank. Games and media can be pirated.

I used to run RetroPie on a Raspberry Pi 1 and it was able to play most of the SNES games I tried. Of course that was with no shaders or upscaling.

Download some live boot images, use Rufus to write them to flash drives, boot them up and try them out. I would suggest starting with something like Mint or Fedora. When you find one you like, back up your data, run the installer and follow the prompts.

OP is running jellyfin, so they can probably watch any 4K videos they want without dealing with DRM and proprietary software.

A lot of distros disable the functions of the magic sysrq key for security reasons. If it’s enabled, it should work as long as the system is still capable of reading keyboard inputs.

Attach a DP to component video adapter to the TV.

The Liberation fonts are open source and licensed under the SIL Open Font License.

One of the better free options is FreeDNS, but you are limited to 5 records.

If you want your own domain, I would suggest Porkbun. They have an API that can be used for dynamic DNS.

You shouldn’t have any issues with MakeMKV and normal blurays. 4K blurays can only be ripped with certain drives and they need custom firmware.

Gnome Disk Utility lets you manage the mount points from a GUI. There are probably other programs that can do it too.

You can use stunnel to make your VPN look like HTTPS.

Most ISPs have remote access to their modems. You should use your own if possible. If you can’t, then put it in bridge mode and connect your own router to it.

If you bought the game, all you would have to do is click install and Steam would have done all of the setup for you. If you pirate, then you have to do that work yourself. It’s not particularly difficult, but it takes more than just double clicking on an exe file.

If you have a keyboard that can run the QMK firmware, you can remap keys and run macros in the keyboard.

You could write a simple bash script that will launch it, wait for it to open, then use wmctrl to position the window wherever you want it.

There is ddccontrol and ddcutil for controlling desktop monitors. There is also the ddcci-driver which adds a device to /sys/class/backlight so you can use programs that would normally be used for controlling a laptop backlight.

SoundConverter is a good one. It’s simple and supports running multiple encodes in parallel to speed up batch conversions.

For music, I would suggest setting the format to Opus and the quality to high. That will produce a file around 128 kbps which should be transparent. Don’t get rid of your original lossless files though. You will need them whenever a newer, better codec comes out.

OPNsense doesn’t officially support ARM. You need an x86 PC for it unless you want to mess with an experimental build.

OpenWRT does support the Raspberry Pi though. You will want the Pi 5 for that since it has PCIe to connect an ethernet card to.