/nix/store/h0kzfm8rnravhy3x1wvz3dqm4cwhkpl6-hlint-check.drv

cardano-node/src/Cardano/Node/Run.hs:9:1-35: Warning: Unused LANGUAGE pragma
Found:
  {-# LANGUAGE NumericUnderscores #-}
Perhaps you should remove it.

cardano-node/src/Cardano/Node/Run.hs:15:1-33: Warning: Use fewer LANGUAGE pragmas
Found:
  {-# LANGUAGE TypeApplications #-}
  {-# LANGUAGE TypeApplications #-}
  
Perhaps:
  {-# LANGUAGE TypeApplications #-}

cardano-node/src/Cardano/Node/Run.hs:882:39-42: Suggestion: Use underscore
Found:
  3300
Perhaps:
  3_300

cardano-node/src/Cardano/Node/Tracing/Tracers/Consensus.hs:850:15-47: Suggestion: Move brackets to avoid $
Found:
  "start" .= (String $ showT start)
Perhaps:
  "start" .= String (showT start)

cardano-node/src/Cardano/Node/Tracing/Tracers/Consensus.hs:851:15-43: Suggestion: Move brackets to avoid $
Found:
  "end" .= (String $ showT end)
Perhaps:
  "end" .= String (showT end)

5 hints
=====================================================================
Note: to ignore a particular hint (e.g. "Reduce duplication"), write
this in the source file:
{-# ANN module ("HLint: ignore Reduce duplication" :: Text) #-}
You can also apply it just to a particular function, which is better:
{-# ANN funcName ("HLint: ignore Reduce duplication" :: Text) #-}