Unity installation via .unitypackage without NuGetForUnity

[nicenerd]

It would be great to be able to install the library via .unitypackage like UniRx / UniTask.
Pulling a NuGetForUnity dependency just to download a few libs seems like a lot of heavy lifting.

[georg-walkingtreegames]

I'm also not a big fan of NuGetForUnity. I have this simple bash script in my projects, which downloads any dependency for me. The result needs to be put in source control though:

#!/bin/bash

function install_dependency() {
  name=$1
  version=$2
  dir="NuGet/${name}"
  
  echo "Installing ${name}"
  mkdir -p "${dir}"
  rm -rf "${dir}/*"
  curl -sL "https://www.nuget.org/api/v2/package/${name}" --output "${dir}/dependency.zip"
  unzip -uq "${dir}/dependency.zip" -d "${dir}/" 
  rm "${dir}/dependency.zip"
  rm -fr "${dir}/package"
  rm -fr "${dir}/runtimes"
  rm -fr "${dir}/_rels"
  rm -fr "${dir}/ref"
  ls "${dir}/lib" | grep -v "${version}" | xargs -I {} echo "${dir}/lib/"{} | xargs rm -r
}

install_dependency "R3/1.2.9" "netstandard2.0"
install_dependency "Microsoft.Bcl.AsyncInterfaces/6.0.0" "netstandard2.0"
install_dependency "Microsoft.Bcl.TimeProvider/8.0.0" "netstandard2.0"
install_dependency "System.ComponentModel.Annotations/5.0.0" "netstandard2.0"
install_dependency "System.Runtime.CompilerServices.Unsafe/6.0.0" "netstandard2.0"
install_dependency "System.Threading.Channels/8.0.0" "netstandard2.0"