diff --git a/src-test/Main.hs b/src-test/Main.hs
--- a/src-test/Main.hs
+++ b/src-test/Main.hs
@@ -7,7 +7,6 @@
 import qualified FreshTest
 import qualified LimitedMessageBoxTest
 import qualified MessageBoxClassTest
-import qualified ProtocolsTest
 import System.Environment (setEnv)
 import Test.Tasty
   ( TestTree,
@@ -35,6 +34,5 @@
       MessageBoxClassTest.test,
       LimitedMessageBoxTest.test,
       UnlimitedMessageBoxTest.test,
-      ProtocolsTest.test,
       FreshTest.test
     ]
diff --git a/unliftio-messagebox.cabal b/unliftio-messagebox.cabal
--- a/unliftio-messagebox.cabal
+++ b/unliftio-messagebox.cabal
@@ -1,13 +1,13 @@
 cabal-version:  3.0
 name:           unliftio-messagebox
-version:        1.0.0
+version:        1.0.2
 description:    Please see the README on GitHub at <https://github.com/sheyll/unliftio-messagebox#readme>
 synopsis:       Fast and robust message queues for concurrent processes
 homepage:       https://github.com/sheyll/unliftio-messagebox#readme
 bug-reports:    https://github.com/sheyll/unliftio-messagebox/issues
 author:         Sven Heyll
 maintainer:     sven.heyll@gmail.com
-category:       Concurrency, Control, Effect
+category:       Concurrency
 tested-with:    GHC==8.10.2,GHC==8.10.3
 copyright:      Copyright Sven Heyll
 license:        BSD-2-Clause
@@ -21,16 +21,19 @@
   type: git
   location: https://github.com/sheyll/unliftio-messagebox
 
+flag development
+  description: 
+    Configure a development version, i.e. -fprof-auto and -Werror
+  default: False
+  manual: True
+  
 common executable-flags
   ghc-options:
     -threaded
-    -O2
     "-with-rtsopts=-T -N -qa"
-  ghc-prof-options: 
-    -threaded
-    -O2
-    -fprof-auto 
-    "-with-rtsopts=-T -xt -xc -Pa -hc -L256"
+  if flag(development)
+    ghc-prof-options: 
+      "-with-rtsopts=-T -xt -xc -Pa -hc -L256"
   
 common compiler-flags
   ghc-options:
@@ -44,8 +47,13 @@
     -Wpartial-fields
     -Wmissing-deriving-strategies
     -funbox-strict-fields
-    -Wno-missing-signatures 
-    -- -Werror
+    -Wno-missing-signatures     
+  if flag(development)
+    ghc-options:
+      -O2
+      -Werror
+    ghc-prof-options:
+      -fprof-auto 
   default-extensions:
      AllowAmbiguousTypes,
      BangPatterns,
@@ -122,21 +130,6 @@
   default-language: Haskell2010
   hs-source-dirs:
       src
-  ghc-options:
-    -Wall
-    -Wcompat
-    -Widentities
-    -Wincomplete-uni-patterns
-    -Wincomplete-record-updates
-    -Wredundant-constraints
-    -Wmissing-export-lists
-    -Wpartial-fields
-    -Wmissing-deriving-strategies
-    -funbox-strict-fields
-    -O2
-    -- -Werror
-  ghc-prof-options: 
-    -fprof-auto 
   exposed-modules:
     UnliftIO.MessageBox,
     UnliftIO.MessageBox.CatchAll,