Add Music Studio, Migrate from GitHub to Personal Gitea (#1)

Reviewed-on: #1

files/scripts/nixos.sh

@@ -15,7 +15,7 @@ nixos_working_exe=activate.sh
 function usage {
 	echo -e "\nUsage: $PROG -b BRANCH" >&2
 	cat <<- EOF
-		Run a setup script for NixOS based on the https://github.com/Hyperling/NixOS project.
+		Run a setup script for NixOS based on the https://git.hyperling.com/me/env-nixos project.
 
 		Parameters:
 		  -b BRANCH: The branch which should be installed, likely 'main' or 'dev'.
@@ -48,7 +48,7 @@ fi
 cleanup
 
 # Install the Hyperling NixOS configurations.
-git clone https://github.com/Hyperling/NixOS --branch $branch $nixos_working_dir
+git clone https://git.hyperling.com/me/env-nixos --branch $branch $nixos_working_dir
 chmod 755 $nixos_working_dir/$nixos_working_exe
 $nixos_working_dir/$nixos_working_exe