gistfile1.rb

asset = github_asset "my-archive.tar.gz" do
  repo "reset/mysoftware"
  release "1.0.0"
  github_user "reset"
  github_token "my_token"
end

libarchive_file "my-archive.tar.gz" do
  path asset.asset_path
  extract_to "/some/path"
  owner "user"
  group "group"

  action :extract
  only_if { ::File.exist?(asset.asset_path) }
end

Awesome, tnx for sharing :)