diff --git a/src/Data/Universe/TH.hs b/src/Data/Universe/TH.hs
index 3f0452556..ef10054eb 100644
--- a/src/Data/Universe/TH.hs
+++ b/src/Data/Universe/TH.hs
@@ -1,4 +1,4 @@
--- SPDX-FileCopyrightText: 2022 Gregor Kleen <gregor.kleen@ifi.lmu.de>,Sarah Vaupel <vaupel.sarah@campus.lmu.de>
+-- SPDX-FileCopyrightText: 2024 Stephan Barth <stephan.barth@uniworx.de>, 2022 Gregor Kleen <gregor.kleen@ifi.lmu.de>,Sarah Vaupel <vaupel.sarah@campus.lmu.de>
 --
 -- SPDX-License-Identifier: AGPL-3.0-or-later
 
@@ -24,13 +24,14 @@ import Data.Containers.ListUtils
 import Control.Lens hiding (universe)
 import Data.Generics.Product.Types
 
+--import Language.Haskell.TH.Datatype.TyVarBndr
 
 -- | Get type var bind name
 --
--- Stolen from https://hackage.haskell.org/package/template-haskell-util-0.1.1.0
-getTVBName :: TyVarBndr -> Name
-getTVBName (PlainTV  name  ) = name
-getTVBName (KindedTV name _) = name
+-- Stolen from https://hackage.haskell.org/package/template-haskell-util-0.1.1.0; modified by Stephan Barth
+getTVBName :: TyVarBndr flag -> Name
+getTVBName (PlainTV  name _) = name
+getTVBName (KindedTV name _ _) = name
 
 
 
diff --git a/src/Data/Void/Instances.hs b/src/Data/Void/Instances.hs
index 692f742df..a94cb4f70 100644
--- a/src/Data/Void/Instances.hs
+++ b/src/Data/Void/Instances.hs
@@ -10,10 +10,10 @@ module Data.Void.Instances
 import ClassyPrelude.Yesod
 import Data.Void
 
-instance ToContent Void where
-  toContent = absurd
-instance ToTypedContent Void where
-  toTypedContent = absurd
+--instance ToContent Void where
+--  toContent = absurd
+--instance ToTypedContent Void where
+--  toTypedContent = absurd
 
 instance RenderMessage site Void where
   renderMessage _ _ = absurd
diff --git a/src/Data/Word/Word24.hs b/src/Data/Word/Word24.hs
new file mode 100644
index 000000000..eb5f1b1f3
--- /dev/null
+++ b/src/Data/Word/Word24.hs
@@ -0,0 +1,48 @@
+
+module Data.Word.Word24
+  ( Word24
+  ) where
+
+import Data.Word
+
+import Import.NoModel
+import Data.Bits
+
+newtype Word24 = Word24 Word32
+
+maxWord24 :: Num a => a
+maxWord24 = 16777215
+
+instance Bounded Word24 where
+  minBound = 0
+  maxBound = maxWord24
+
+word24 :: Word32 -> Word24
+word24 = assert (maxWord24 == 2^24-1) (Word24 . (.&. maxWord24))
+
+instance Num Word24 where
+  (+) (Word24 a) (Word24 b) = word24 (a + b)
+  (*) (Word24 a) (Word24 b) = word24 (a * b)
+  abs (Word24 a) = word24 (abs a)
+  signum (Word24 a) = word24 (signum a)
+  fromInteger i = word24 (fromInteger i)
+  negate (Word24 a) = word24 (negate a)
+
+instance Eq Word24 where
+  (==) (Word24 a) (Word24 b) = a == b
+
+instance Ord Word24 where
+  compare (Word24 a) (Word24 b) = compare a b
+
+instance Real Word24 where
+  toRational (Word24 a) = toRational a
+
+instance Enum Word24 where
+  toEnum k = word24 (toEnum k)
+  fromEnum (Word24 k) = fromEnum k
+
+instance Integral Word24 where
+  quotRem (Word24 a) (Word24 b) =
+    let (u,v) = quotRem a b in
+    (word24 u, word24 v)
+  toInteger (Word24 w) = toInteger w