diff --git a/lib/api.rb b/lib/api.rb
index eda836f..9a86f2f 100644
--- a/lib/api.rb
+++ b/lib/api.rb
@@ -126,15 +126,12 @@ class W3DHub
 
     # /apis/launcher/1/get-package-details
     # client requests package details: data={"packages":[{"category":"games","name":"apb.ico","subcategory":"apb","version":""}]}
-    def self.package_details(packages)
-      response = Excon.post(
-        "#{ENDPOINT}/apis/launcher/1/get-package-details",
-        headers: DEFAULT_HEADERS.merge({"Content-Type": "application/x-www-form-urlencoded"}),
-        body: "data=#{JSON.dump({ packages: packages })}"
-      )
+    def self.package_details(internet, packages)
+      body = "data=#{JSON.dump({ packages: packages })}"
+      response = internet.post("#{ENDPOINT}/apis/launcher/1/get-package-details", FORM_ENCODED_HEADERS, body)
 
-      if response.status == 200
-        hash = JSON.parse(response.body, symbolize_names: true)
+      if response.success?
+        hash = JSON.parse(response.read, symbolize_names: true)
         packages = hash[:packages].map { |pkg| Package.new(pkg) }
         return packages.first if packages.size == 1
         return packages
@@ -147,8 +144,8 @@ class W3DHub
     # client requests package: data={"category":"games","name":"ECW_Asteroids.zip","subcategory":"ecw","version":"1.0.0.0"}
     #
     # server responds with download bytes, probably supports chunked download and resume
-    def self.package(package, &block)
-      Cache.fetch_package(package, block)
+    def self.package(internet, package, &block)
+      Cache.fetch_package(internet, package, block)
     end
 
     #! === Server List API === !#
diff --git a/lib/application_manager/pool.rb b/lib/application_manager/pool.rb
index ab4c59f..98b92b7 100644
--- a/lib/application_manager/pool.rb
+++ b/lib/application_manager/pool.rb
@@ -29,7 +29,7 @@ class W3DHub
           @die = false
           @job = nil
 
-          Thread.new do
+          Async do
             until (@die)
               @job.process if @job && @job.waiting?
               @job = nil
diff --git a/lib/application_manager/task.rb b/lib/application_manager/task.rb
index 8859b1b..38d20ee 100644
--- a/lib/application_manager/task.rb
+++ b/lib/application_manager/task.rb
@@ -48,7 +48,7 @@ class W3DHub
       def start
         @task_state = :running
 
-        Thread.new do
+        Async do
           status = execute_task
 
           # Force free some bytes
@@ -221,7 +221,8 @@ class W3DHub
           }
         end
 
-        package_details = Api.package_details(hashes)
+        internet = Async::HTTP::Internet.instance
+        package_details = Api.package_details(internet, hashes)
 
         if package_details
           @packages = [package_details].flatten
@@ -427,6 +428,8 @@ class W3DHub
 
             while (chunk = f.read(32_000_000))
               digest.update(chunk)
+              current = Async::Task.current?
+              current&.yield
             end
 
             f.close
@@ -448,7 +451,9 @@ class W3DHub
 
       def fetch_manifest(category, subcategory, name, version, &block)
         # Check for and integrity of local manifest
-        package = Api.package_details([{ category: category, subcategory: subcategory, name: name, version: version }])
+        internet = Async::HTTP::Internet.instance
+
+        package = Api.package_details(internet, [{ category: category, subcategory: subcategory, name: name, version: version }])
 
         if File.exist?(Cache.package_path(category, subcategory, name, version))
           verified = verify_package(package)
@@ -465,7 +470,9 @@ class W3DHub
       def package_fetch(package, &block)
         puts "Downloading: #{package.category}:#{package.subcategory}:#{package.name}-#{package.version}"
 
-        Api.package(package) do |chunk, remaining_bytes, total_bytes|
+        internet = Async::HTTP::Internet.instance
+
+        Api.package(internet, package) do |chunk, remaining_bytes, total_bytes|
           # Store progress somewhere
           # Kernel.puts "#{name}-#{version}: #{(remaining_bytes.to_f / total_bytes).round}%"
 
diff --git a/lib/cache.rb b/lib/cache.rb
index a6d5423..4541ca9 100644
--- a/lib/cache.rb
+++ b/lib/cache.rb
@@ -44,7 +44,7 @@ class W3DHub
     end
 
     # Download a W3D Hub package
-    def self.fetch_package(package, block)
+    def self.fetch_package(internet, package, block)
       path = package_path(package.category, package.subcategory, package.name, package.version)
       headers = { "Content-Type": "application/x-www-form-urlencoded" }
       start_from_bytes = package.custom_partially_valid_at_bytes