diff --git a/README.md b/README.md
index 1370de1..ec14e4f 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ Main repo: https://git.sudoer.ch/me/really-bad-compiler-in-haskell
 
 - Install `ghcup` (for managing Haskell tools) and `nix` (for managing external dependencies).
 - Clone the repo.
-- Use `ghcup` to install `stack 2.9.3`, `HLS 2.2.0.0`, `GHC 9.2.8`, and `cabal 3.6.2.0`.
+- Use `ghcup` to install `stack 2.11.1`, `HLS 2.3.0.0`, and `cabal 3.8.1.0`.
 
 ## Run Instructions
 
diff --git a/really-bad-compiler-in-haskell.cabal b/really-bad-compiler-in-haskell.cabal
index 13f796f..f153056 100644
--- a/really-bad-compiler-in-haskell.cabal
+++ b/really-bad-compiler-in-haskell.cabal
@@ -1,6 +1,6 @@
 cabal-version: 1.12
 
--- This file has been generated from package.yaml by hpack version 0.35.1.
+-- This file has been generated from package.yaml by hpack version 0.35.2.
 --
 -- see: https://github.com/sol/hpack
 
diff --git a/src/Main.hs b/src/Main.hs
index 13e893f..c8b387f 100644
--- a/src/Main.hs
+++ b/src/Main.hs
@@ -12,12 +12,11 @@ import System.Process (callCommand)
 
 main :: IO ()
 main = do
-  fileName <- fmap head getArgs
+  fileName <- head <$> getArgs
   contents <- T.readFile fileName
-  T.putStrLn "- Parsing file..."
-  let parsed = parse contents
   T.putStrLn "- Generating LLVM to './a.out.ll'..."
-  llvmGen parsed >>= B.writeFile "a.out.ll"
+  result <- (llvmGen . parse) contents
+  B.writeFile "a.out.ll" result
   T.putStrLn "- Compiling to executable './a.out'..."
   callCommand "clang a.out.ll"
-  T.putStrLn "- Done."
+  T.putStrLn "- Done."
\ No newline at end of file
diff --git a/src/Main/LLVMGen.hs b/src/Main/LLVMGen.hs
index 818a79f..a8ce6c6 100644
--- a/src/Main/LLVMGen.hs
+++ b/src/Main/LLVMGen.hs
@@ -17,6 +17,9 @@ import LLVM.IRBuilder.Module
 import LLVM.IRBuilder.Monad
 import Main.Types.Expr as Expr
 
+-- printf :: Operand
+-- printf = externVarArgs "printf" [ptr] i32
+
 getLLVM :: Expr -> Module
 getLLVM expr =
   buildModule "program" $ mdo
@@ -26,7 +29,12 @@ getLLVM expr =
       numFormatStr <- globalStringPtr "%d\n" (mkName "str")
       ourExpression <- exprToLLVM expr
       _ <- call (FunctionType i32 [ptr] True) printf [(ConstantOperand numFormatStr, []), (ourExpression, [])]
-      ret (int32 0)
+      ret $ int32 0
+
+-- getLLVM2 expr =
+-- getLLVM $
+
+-- return (printf)
 
 exprToLLVM ::
   ( MonadIRBuilder m,
@@ -36,6 +44,7 @@ exprToLLVM ::
   m Operand
 exprToLLVM (Lit prim) = pure $ primToLLVM prim
 exprToLLVM (Paren e) = exprToLLVM e
+-- exprToLLVM (Print e) = mdo
 exprToLLVM (Expr.Add a b) = mdo
   lhs <- exprToLLVM a
   rhs <- exprToLLVM b
@@ -54,12 +63,9 @@ exprToLLVM (Expr.Div a b) = mdo
   sdiv lhs rhs
 
 primToLLVM :: Int -> Operand
-primToLLVM i = int32 (fromIntegral i)
+primToLLVM i = int32 $ fromIntegral i
 
 llvmGen :: Expr -> IO ByteString
 llvmGen expr = do
   let l = getLLVM expr
-  withContext
-    ( \c ->
-        withModuleFromAST c l moduleLLVMAssembly
-    )
\ No newline at end of file
+  withContext $ \c -> withModuleFromAST c l moduleLLVMAssembly
\ No newline at end of file
diff --git a/src/Main/Parser/Megaparsec.hs b/src/Main/Parser/Megaparsec.hs
index 6178a9d..33543de 100644
--- a/src/Main/Parser/Megaparsec.hs
+++ b/src/Main/Parser/Megaparsec.hs
@@ -50,13 +50,13 @@ table =
   ]
 
 binaryOp :: Text -> (a -> a -> a) -> Operator (ParsecT Void Text Data.Functor.Identity.Identity) a
-binaryOp name f = InfixL (f <$ symbol name)
+binaryOp name f = InfixL $ f <$ symbol name
 
 -- prefixOp :: Text -> (a -> a) -> Operator (ParsecT Void Text Data.Functor.Identity.Identity) a
 -- prefixOp name f = Prefix (f <$ symbol name)
 
 methodOp :: Text -> (a -> a) -> Operator (ParsecT Void Text Data.Functor.Identity.Identity) a
-methodOp name f = Prefix (f <$ (string name <* C.space))
+methodOp name f = Prefix $ f <$ (string name <* C.space)
 
 -- postfixOp :: Text -> (a -> a) -> Operator (ParsecT Void Text Data.Functor.Identity.Identity) a
 -- postfixOp name f = Postfix (f <$ symbol name)
@@ -68,7 +68,7 @@ parseExpr :: Text -> Either (ParseErrorBundle Text Void) Expr
 parseExpr = MP.parse (C.space *> expr <* eof) ""
 
 parse :: Text -> Expr
-parse t = do
+parse t =
   case parseExpr t of
     Right r -> r
 
diff --git a/stack.yaml b/stack.yaml
index 45dc800..c54066b 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -1,4 +1,11 @@
 resolver: lts-20.26
+compiler: ghc-9.2.8
+# setup-info:
+#   ghc:
+#     aarch64:
+#       9.4.6:
+#         url: "https://downloads.haskell.org/~ghc/9.4.6/ghc-9.4.6-aarch64-deb10-linux.tar.xz"
+#         sha256: "05896fc4bc52c117d281eac9c621c6c3a0b14f9f9eed5e42cce5e1c4485c7623"
 
 packages:
   - .
@@ -12,4 +19,4 @@ nix:
   enable: true
   packages: [llvm_15, clang_15, libxml2]
 system-ghc: true
-install-ghc: true
+install-ghc: false