diff --git a/README.md b/README.md
index c415701..0aa8800 100644
--- a/README.md
+++ b/README.md
@@ -23,6 +23,8 @@ Main repo: https://git.sudoer.ch/me/really-bad-compiler-in-haskell
 - learnyouahaskell.com (for learning Haskell basics)
 - https://akashagrawal.me/2017/01/19/beginners-guide-to-megaparsec.html
 - https://markkarpov.com/tutorial/megaparsec.html (for help writing a Haskell equation parser)
+- https://www.forth.com/starting-forth/1-forth-stacks-dictionary/ (for learning Forth)
+- https://blog.josephmorag.com/posts/mcc0/ (Haskell LLVM tutorial)
 
 ### Tools
 
diff --git a/package.yaml b/package.yaml
new file mode 100644
index 0000000..32ff1aa
--- /dev/null
+++ b/package.yaml
@@ -0,0 +1,17 @@
+name: really-bad-compiler-in-haskell
+version: 0
+author: sudoer777
+maintainer: git@sudoer.ch
+dependencies:
+  - base
+  - megaparsec
+  - parser-combinators
+  - text
+tested-with: GHC == 9.2.8
+
+ghc-options: -threaded -Wall -j +RTS -A32M -RTS
+
+executables:
+  compiler:
+    source-dirs: app
+    main: Main.hs
diff --git a/really-bad-compiler-in-haskell.cabal b/really-bad-compiler-in-haskell.cabal
index 5433bd0..c00d58f 100644
--- a/really-bad-compiler-in-haskell.cabal
+++ b/really-bad-compiler-in-haskell.cabal
@@ -1,39 +1,30 @@
-cabal-version:      2.4
-name:               really-bad-compiler-in-haskell
-version:            0.1.0.0
+cabal-version: 1.12
 
--- A short (one-line) description of the package.
--- synopsis:
+-- This file has been generated from package.yaml by hpack version 0.35.1.
+--
+-- see: https://github.com/sol/hpack
 
--- A longer description of the package.
--- description:
+name:           really-bad-compiler-in-haskell
+version:        0
+author:         sudoer777
+maintainer:     git@sudoer.ch
+build-type:     Simple
+tested-with:
+    GHC == 9.2.8
 
--- A URL where users can report bugs.
--- bug-reports:
-
--- The license under which the package is released.
--- license:
-author:             sudoer777
-maintainer:         git@sudoer.ch
-
--- A copyright notice.
--- copyright:
--- category:
-extra-source-files:
-    CHANGELOG.md
-    README.md
-
-executable really-bad-compiler-in-haskell
-    main-is:          Main.hs
-
-    -- Modules included in this executable, other than Main.
-    -- other-modules:
-
-    -- LANGUAGE extensions used by modules in this package.
-    -- other-extensions:
-    build-depends:    base ^>=4.16.4.0
-                    , megaparsec >= 9.2.2
-                    , parser-combinators
-                    , text
-    hs-source-dirs:   app
-    default-language: Haskell2010
+executable compiler
+  main-is: Main.hs
+  other-modules:
+      Eval.Expression
+      Objects.Expression
+      Parser.Expression
+      Paths_really_bad_compiler_in_haskell
+  hs-source-dirs:
+      app
+  ghc-options: -threaded -Wall -j +RTS -A32M -RTS
+  build-depends:
+      base
+    , megaparsec
+    , parser-combinators
+    , text
+  default-language: Haskell2010
diff --git a/stack.yaml b/stack.yaml
index de4df28..4be007a 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -30,7 +30,7 @@ resolver:
 #   - auto-update
 #   - wai
 packages:
-- .
+  - .
 # Dependency packages to be pulled from upstream that are not in the resolver.
 # These entries can reference officially published versions as well as
 # forks / in-progress versions pinned to a git hash. For example: