Gemfile in hyper-model-1.0.alpha1.5 vs Gemfile in hyper-model-1.0.alpha1.6

@@ -1,10 +1,11 @@
 source 'https://rubygems.org'
-#gem "opal-jquery", git: "https://github.com/opal/opal-jquery.git", branch: "master"
-# hyper-model is still using an ancient inlined version of hyper-spec
-#gem 'hyper-spec',       path: '../hyper-spec'
-gem 'hyperstack-config', path: '../hyperstack-config'
 gem 'hyper-state',      path: '../hyper-state'
 gem 'hyper-component',  path: '../hyper-component'
 gem 'hyper-operation',  path: '../hyper-operation'
-
+gem 'hyper-spec', path: '../hyper-spec'
+gem 'hyper-trace', path: '../hyper-trace'
+gem 'hyperstack-config', path: '../hyperstack-config'
+unless ENV['OPAL_VERSION']&.match("0.11")
+  gem 'opal-browser', git: 'https://github.com/opal/opal-browser'
+end
 gemspec