First an addition for people wanting to build from source on Ubuntu or other Debian derivatives: there is a nice quick script from lvm: https://github.com/lvm/build-supercollider
And then going a bit OT about arch (I promise I won’t go further with this):
I followed the installation guide and didn’t have any problem… and just for completeness, it does say you need to install networking software:
In particular, consider installing:
I’m sorry you got annoyed. I remember installing arch on a new computer four years ago, and I would say it was an involved process, but I would’t say I had suffered. I won’t go into pros and cons of Arch, even though I admit I’m very attached to it, e.g. because of how deep you can go, and how helpful the wiki has been to me while doing that. I would still recommend it as a natural progression from an OS like windows or macOS, to a more everything-ready-for-the-average-you distro like Ubuntu or Mint, to an OS that allows more control, requires more involvement, but still assists you in this process.