This version of pantry uses some language features that changed from 8.6 to
8.8.

diff --git a/src/Pantry/Storage.hs.old b/src/Pantry/Storage.hs
index 8ad03b9..2d0481b 100644
--- a/src/Pantry/Storage.hs
+++ b/src/Pantry/Storage.hs
@@ -13,6 +13,8 @@
 {-# LANGUAGE ViewPatterns #-}
 {-# LANGUAGE LambdaCase #-}
 {-# LANGUAGE UndecidableInstances #-}
+{-# LANGUAGE DerivingStrategies #-}
+{-# LANGUAGE StandaloneDeriving #-}
 module Pantry.Storage
   ( SqlBackend
   , initStorage