diff -ur a/app/Examples.hs b/app/Examples.hs
--- a/app/Examples.hs	2018-03-21 04:19:44.000000000 +0100
+++ b/app/Examples.hs	2025-03-07 19:25:49.146791785 +0100
@@ -40,6 +40,7 @@
 import           Data.Semigroup                      ((<>))
 import           GHC.TypeLits
 import           Graphics.Vty hiding                 (Config, (<|>))
+import           Graphics.Vty.CrossPlatform (mkVty)
 import           Numeric.Hamilton
 import           Numeric.LinearAlgebra.Static hiding (dim, (<>))
 import           Options.Applicative
@@ -316,7 +317,7 @@
        <> progDescDoc (Just descr)
         )
 
-    vty <- mkVty =<< standardIOConfig
+    vty <- mkVty defaultConfig
 
     opts <- newIORef $ SO 0.5 1 25
 
Only in b: dist-newstyle
diff -ur a/hamilton.cabal b/hamilton.cabal
--- a/hamilton.cabal	2018-03-21 07:16:33.000000000 +0100
+++ b/hamilton.cabal	2025-03-07 19:25:00.793791682 +0100
@@ -63,6 +63,7 @@
     , vector
     , vector-sized >=1.0
     , vty
+    , vty-crossplatform
   other-modules:
       Paths_hamilton
   default-language: Haskell2010