diff --git a/Gemfile b/Gemfile
index 59f0ee1..a11012f 100644
--- a/Gemfile
+++ b/Gemfile
@@ -9,6 +9,7 @@ gem "ffi"
 gem "websocket-client-simple"
 gem "thread-local"
 gem "ircparser"
+gem "rubyzip"
 gem "win32-security", platforms: [:x64_mingw, :mingw]
 gem "win32-process", platforms: [:x64_mingw, :mingw]
 
diff --git a/Gemfile.lock b/Gemfile.lock
index eace382..1f02cfe 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -11,7 +11,7 @@ GEM
     digest-crc (0.6.4)
       rake (>= 12.0.0, < 14.0.0)
     event_emitter (0.2.6)
-    excon (0.93.1)
+    excon (0.94.0)
     ffi (1.15.5)
     ffi (1.15.5-x64-mingw-ucrt)
     ffi (1.15.5-x64-mingw32)
@@ -27,6 +27,7 @@ GEM
     public_suffix (5.0.0)
     rake (13.0.6)
     rexml (3.2.5)
+    rubyzip (2.3.2)
     thread-local (1.1.0)
     websocket (1.2.9)
     websocket-client-simple (0.6.0)
@@ -51,10 +52,11 @@ DEPENDENCIES
   ircparser
   launchy
   rexml
+  rubyzip
   thread-local
   websocket-client-simple
   win32-process
   win32-security
 
 BUNDLED WITH
-   2.3.17
+   2.3.26
diff --git a/lib/api.rb b/lib/api.rb
index 4b6ebd1..d9d1b2e 100644
--- a/lib/api.rb
+++ b/lib/api.rb
@@ -45,7 +45,18 @@ class W3DHub
       end
 
       begin
-        Excon.post(url, headers: headers, body: body, tcp_nodelay: true, write_timeout: API_TIMEOUT, read_timeout: API_TIMEOUT, connection_timeout: API_TIMEOUT)
+        Excon.post(
+          url,
+          headers: headers,
+          body: body,
+          tcp_nodelay: true,
+          write_timeout: API_TIMEOUT,
+          read_timeout: API_TIMEOUT,
+          connection_timeout: API_TIMEOUT,
+          idempotent: true,
+          retry_limit: 6,
+          retry_interval: 5
+        )
       rescue Excon::Errors::Timeout
         logger.error(LOG_TAG) { "Connection to \"#{url}\" timed out after: #{API_TIMEOUT} seconds" }
         DummyResponse.new
@@ -233,7 +244,7 @@ class W3DHub
 
       logger.debug(LOG_TAG) { "Fetching GET \"#{url}\"..." }
 
-      Excon.get(url, headers: headers, body: body, persistent: true)
+      Excon.get(url, headers: headers, body: body, persistent: true, idempotent: true, retry_limit: 6, retry_interval: 5)
     end
 
     # Method: GET
diff --git a/lib/application_manager.rb b/lib/application_manager.rb
index a712f36..e3cac0f 100644
--- a/lib/application_manager.rb
+++ b/lib/application_manager.rb
@@ -231,7 +231,24 @@ class W3DHub
 
       return false unless server
 
-      join_server(app_id, channel, server)
+      if Store.settings[:server_list_username].to_s.length.zero?
+        W3DHub.prompt_for_nickname(
+          accept_callback: proc do |entry|
+            Store.settings[:server_list_username] = entry
+            Store.settings.save_settings
+
+            if server.status.password
+              W3DHub.prompt_for_password(
+                accept_callback: proc do |password|
+                  join_server(app_id, channel, server)
+                end
+              )
+            else
+              join_server(app_id, channel, server)
+            end
+          end
+        )
+      end
     end
 
     def favorive(app_id, bool)
diff --git a/lib/application_manager/task.rb b/lib/application_manager/task.rb
index 1aa85d9..e7ef1e9 100644
--- a/lib/application_manager/task.rb
+++ b/lib/application_manager/task.rb
@@ -146,10 +146,7 @@ class W3DHub
 
         # FIXME: Check that there is enough disk space
 
-        # tar present?
-        bsdtar_present = W3DHub.command("#{W3DHub.tar_command} --help")
-        fail!("FAIL FAST: `#{W3DHub.tar_command} --help` command failed, #{W3DHub.tar_command} is not installed. Will be unable to unpack packages.") unless bsdtar_present
-
+        # TODO: Is missing wine/proton really a failure condition?
         # Wine present?
         if W3DHub.unix?
           wine_present = W3DHub.command("which #{Store.settings[:wine_command]}")
@@ -286,8 +283,8 @@ class W3DHub
 
           manifest.files.each do |file|
             safe_file_name = file.name.gsub("\\", "/")
-            # Fix borked data -> Data 'cause Windows don't care about capitalization
-            safe_file_name.sub!("data/", "Data/") # unless File.exist?("#{path}/#{safe_file_name}")
+            # Fix borked Data -> data 'cause Windows don't care about capitalization
+            safe_file_name.sub!("Data/", "data/")
 
             file_path = "#{path}/#{safe_file_name}"
 
@@ -490,8 +487,6 @@ class W3DHub
             unpack_package(package, path)
           end
 
-          repair_windows_case_insensitive(package, path)
-
           if status
             @status.operations[:"#{package.checksum}"].value = package.custom_is_patch ? "Patched" : "Unpacked"
             @status.operations[:"#{package.checksum}"].progress = 1.0
@@ -635,8 +630,9 @@ class W3DHub
         logger.info(LOG_TAG) { "    #{package.name}:#{package.version}" }
         package_path = Cache.package_path(package.category, package.subcategory, package.name, package.version)
 
-        logger.info(LOG_TAG) { "      Running #{W3DHub.tar_command} command: #{W3DHub.tar_command} -xf \"#{package_path}\" -C \"#{path}\"" }
-        return W3DHub.command("#{W3DHub.tar_command} -xf \"#{package_path}\" -C \"#{path}\"")
+        logger.info(LOG_TAG) { "      Unpacking package \"#{package_path}\" in \"#{path}\"" }
+
+        return unzip(package_path, path)
       end
 
       def apply_patch(package, path)
@@ -647,19 +643,18 @@ class W3DHub
 
         Cache.create_directories(temp_path, true)
 
-        logger.info(LOG_TAG) { "      Running #{W3DHub.tar_command} command: #{W3DHub.tar_command} -xf \"#{package_path}\" -C \"#{temp_path}\"" }
-        W3DHub.command("#{W3DHub.tar_command} -xf \"#{package_path}\" -C \"#{temp_path}\"")
+        logger.info(LOG_TAG) { "      Unpacking patch \"#{package_path}\" in \"#{temp_path}\"" }
+        unzip(package_path, temp_path)
 
-        logger.info(LOG_TAG) { "      Loading #{temp_path}/#{manifest_file.name}.patch..." }
-        patch_mix = W3DHub::Mixer::Reader.new(file_path: "#{temp_path}/#{manifest_file.name}.patch", ignore_crc_mismatches: false)
+        # Fix borked Data -> data 'cause Windows don't care about capitalization
+        safe_file_name = "#{manifest_file.name.sub('Data/', 'data/')}"
+
+        logger.info(LOG_TAG) { "      Loading #{temp_path}/#{safe_file_name}.patch..." }
+        patch_mix = W3DHub::Mixer::Reader.new(file_path: "#{temp_path}/#{safe_file_name}.patch", ignore_crc_mismatches: false)
         patch_info = JSON.parse(patch_mix.package.files.find { |f| f.name == ".w3dhub.patch" || f.name == ".bhppatch" }.data, symbolize_names: true)
 
-        repaired_path = "#{path}/#{manifest_file.name}"
-        # Fix borked data -> Data 'cause Windows don't care about capitalization
-        repaired_path = "#{path}/#{manifest_file.name.sub('data', 'Data')}" unless File.exist?(repaired_path) && path
-
-        logger.info(LOG_TAG) { "      Loading #{repaired_path}..." }
-        target_mix = W3DHub::Mixer::Reader.new(file_path: repaired_path, ignore_crc_mismatches: false)
+        logger.info(LOG_TAG) { "      Loading #{path}/#{safe_file_name}..." }
+        target_mix = W3DHub::Mixer::Reader.new(file_path: "#{path}/#{safe_file_name}", ignore_crc_mismatches: false)
 
         logger.info(LOG_TAG) { "      Removing files..." } if patch_info[:removedFiles].size.positive?
         patch_info[:removedFiles].each do |file|
@@ -681,27 +676,38 @@ class W3DHub
           end
         end
 
-        logger.info(LOG_TAG) { "      Writing updated #{repaired_path}..." } if patch_info[:updatedFiles].size.positive?
-        W3DHub::Mixer::Writer.new(file_path: repaired_path, package: target_mix.package, memory_buffer: true)
+        logger.info(LOG_TAG) { "      Writing updated #{path}/#{safe_file_name}..." } if patch_info[:updatedFiles].size.positive?
+        W3DHub::Mixer::Writer.new(file_path: "#{path}/#{safe_file_name}", package: target_mix.package, memory_buffer: true)
 
         FileUtils.remove_dir(temp_path)
 
         true
       end
 
-      def repair_windows_case_insensitive(package, path)
-        # Windows is just confused
-        return true if W3DHub.windows?
+      def unzip(package_path, path)
+        stream = Zip::InputStream.new(File.open(package_path))
 
-        # Force data/ to Data/
-        return true unless File.exist?("#{path}/data") && File.directory?("#{path}/data")
+        while (entry = stream.get_next_entry)
 
-        logger.info(LOG_TAG) { "      Moving #{path}/data/ to #{path}/Data/" }
+          safe_file_name = entry.name.gsub("\\", "/")
+          # Fix borked Data -> data 'cause Windows don't care about capitalization
+          safe_file_name.sub!("Data/", "data/")
 
-        FileUtils.mv(Dir.glob("#{path}/data/**"), "#{path}/Data", force: true)
-        FileUtils.remove_dir("#{path}/data", force: true)
+          dir_path = "#{path}/#{File.dirname(safe_file_name)}"
+          unless dir_path.end_with?("/.") || Dir.exist?(dir_path)
+            FileUtils.mkdir_p(dir_path)
+          end
 
-        true
+          File.open("#{path}/#{safe_file_name}", "wb") do |f|
+            i = entry.get_input_stream
+            
+            while (chunk = i.read(32_000_000)) # Read up to ~32 MB per chunk
+              f.write chunk
+            end
+          end
+        end
+
+        return true
       end
     end
   end
diff --git a/lib/common.rb b/lib/common.rb
index 74f508f..2885475 100644
--- a/lib/common.rb
+++ b/lib/common.rb
@@ -32,13 +32,48 @@ class W3DHub
     linux? || mac?
   end
 
-  def self.tar_command
-    if windows?
-      "tar"
-    else
-      "bsdtar"
-    end
-  end
+  def self.prompt_for_nickname(accept_callback: nil, cancel_callback: nil)
+        CyberarmEngine::Window.instance.push_state(
+          W3DHub::States::PromptDialog,
+          title: I18n.t(:"server_browser.set_nickname"),
+          message: I18n.t(:"server_browser.set_nickname_message"),
+          prefill: Store.settings[:server_list_username],
+          accept_callback: accept_callback,
+          cancel_callback: cancel_callback,
+          # See: https://gitlab.com/danpaul88/brenbot/-/blob/master/Source/renlog.pm#L136-175
+          valid_callback: proc do |entry|
+            entry.length > 1 && entry.length < 30 && (entry =~ /(:|!|&|%| )/i).nil? &&
+              (entry =~ /[\001\002\037]/).nil? && (entry =~ /\\/).nil?
+          end
+        )
+      end
+
+      def self.prompt_for_password(accept_callback: nil, cancel_callback: nil)
+        CyberarmEngine::Window.instance.push_state(
+          W3DHub::States::PromptDialog,
+          title: I18n.t(:"server_browser.enter_password"),
+          message: I18n.t(:"server_browser.enter_password_message"),
+          input_type: :password,
+          accept_callback: accept_callback,
+          cancel_callback: cancel_callback,
+          valid_callback: proc { |entry| entry.length.positive? }
+        )
+      end
+
+      def self.join_server(server, password)
+        if (
+          (server.status.password && password.length.positive?) ||
+          !server.status.password) &&
+           Store.settings[:server_list_username].to_s.length.positive?
+
+          Store.application_manager.join_server(
+            server.game,
+            server.channel, server, password
+          )
+        else
+          CyberarmEngine::Window.instance.push_state(W3DHub::States::MessageDialog, type: "?", title: "?", message: "?")
+        end
+      end
 
   def self.command(command, &block)
     if windows?
diff --git a/lib/pages/server_browser.rb b/lib/pages/server_browser.rb
index 6808213..78bdad5 100644
--- a/lib/pages/server_browser.rb
+++ b/lib/pages/server_browser.rb
@@ -80,7 +80,7 @@ class W3DHub
                 @nickname_label = inscription "#{Store.settings[:server_list_username]}"
                 image "#{GAME_ROOT_PATH}/media/ui_icons/wrench.png", height: 16, hover: { color: 0xaa_ffffff }, tip: I18n.t(:"server_browser.set_nickname") do
                   # Prompt for player name
-                  prompt_for_nickname(
+                  W3DHub.prompt_for_nickname(
                     accept_callback: proc do |entry|
                       @nickname_label.value = entry
                       Store.settings[:server_list_username] = entry
@@ -390,32 +390,32 @@ class W3DHub
                   #   prompt for password
                   # Launch game
                   if Store.settings[:server_list_username].to_s.length.zero?
-                    prompt_for_nickname(
+                    W3DHub.prompt_for_nickname(
                       accept_callback: proc do |entry|
                         @nickname_label.value = entry
                         Store.settings[:server_list_username] = entry
                         Store.settings.save_settings
 
                         if server.status.password
-                          prompt_for_password(
+                          W3DHub.prompt_for_password(
                             accept_callback: proc do |password|
-                              join_server(server, password)
+                              W3DHub.join_server(server, password)
                             end
                           )
                         else
-                          join_server(server, nil)
+                          W3DHub.join_server(server, nil)
                         end
                       end
                     )
                   else
                     if server.status.password
-                      prompt_for_password(
+                      W3DHub.prompt_for_password(
                         accept_callback: proc do |password|
-                          join_server(server, password)
+                          W3DHub.join_server(server, password)
                         end
                       )
                     else
-                      join_server(server, nil)
+                      W3DHub.join_server(server, nil)
                     end
                   end
                 end
@@ -599,49 +599,6 @@ class W3DHub
         data
       end
 
-      def prompt_for_nickname(accept_callback: nil, cancel_callback: nil)
-        push_state(
-          W3DHub::States::PromptDialog,
-          title: I18n.t(:"server_browser.set_nickname"),
-          message: I18n.t(:"server_browser.set_nickname_message"),
-          prefill: Store.settings[:server_list_username],
-          accept_callback: accept_callback,
-          cancel_callback: cancel_callback,
-          # See: https://gitlab.com/danpaul88/brenbot/-/blob/master/Source/renlog.pm#L136-175
-          valid_callback: proc do |entry|
-            entry.length > 1 && entry.length < 30 && (entry =~ /(:|!|&|%| )/i).nil? &&
-              (entry =~ /[\001\002\037]/).nil? && (entry =~ /\\/).nil?
-          end
-        )
-      end
-
-      def prompt_for_password(accept_callback: nil, cancel_callback: nil)
-        push_state(
-          W3DHub::States::PromptDialog,
-          title: I18n.t(:"server_browser.enter_password"),
-          message: I18n.t(:"server_browser.enter_password_message"),
-          input_type: :password,
-          accept_callback: accept_callback,
-          cancel_callback: cancel_callback,
-          valid_callback: proc { |entry| entry.length.positive? }
-        )
-      end
-
-      def join_server(server, password)
-        if (
-          (server.status.password && password.length.positive?) ||
-          !server.status.password) &&
-           Store.settings[:server_list_username].to_s.length.positive?
-
-          Store.application_manager.join_server(
-            server.game,
-            server.channel, server, password
-          )
-        else
-          window.push_state(W3DHub::States::MessageDialog, type: "?", title: "?", message: "?")
-        end
-      end
-
       def formatted_score(int)
         int.to_s.reverse.scan(/.{1,3}/).join(",").reverse
       end
diff --git a/w3d_hub_linux_launcher.rb b/w3d_hub_linux_launcher.rb
index 84d537f..ece78fa 100644
--- a/w3d_hub_linux_launcher.rb
+++ b/w3d_hub_linux_launcher.rb
@@ -7,6 +7,7 @@ require "rexml"
 require "logger"
 require "time"
 require "base64"
+require "zip"
 
 class W3DHub
   W3DHUB_DEBUG = ARGV.join.include?("--debug")
@@ -55,8 +56,8 @@ end
 begin
   require_relative "../cyberarm_engine/lib/cyberarm_engine"
 rescue LoadError => e
-  logger.warn(W3D::LOG_TAG) { "Failed to load local cyberarm_engine:" }
-  logger.warn(W3D::LOG_TAG) { e }
+  logger.warn(W3DHub::LOG_TAG) { "Failed to load local cyberarm_engine:" }
+  logger.warn(W3DHub::LOG_TAG) { e }
 
   require "cyberarm_engine"
 end