diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9635fe1125..d7bf0316ed 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -150,7 +150,7 @@ jobs:
       # matrix.ocaml_compiler may contain commas
       - name: Get OPAM cache key
         shell: bash
-        run: echo "opam_cache_key=opam-env-v3-${{ matrix.os }}-${{ matrix.ocaml_compiler }}-${{ hashFiles('compiler/dune-project') }}" | sed 's/,/-/g' >> $GITHUB_ENV
+        run: echo "opam_cache_key=opam-env-v3-${{ matrix.os }}-${{ matrix.ocaml_compiler }}-${{ hashFiles('dune-project') }}" | sed 's/,/-/g' >> $GITHUB_ENV
 
       - name: Restore OPAM environment
         id: cache-opam-env
@@ -250,11 +250,11 @@ jobs:
           
       - name: Build compiler
         if: runner.os != 'Linux'
-        run: opam exec -- dune build --root compiler --display quiet --profile release
+        run: opam exec -- dune build --display quiet --profile release
 
       - name: Build compiler (Linux static)
         if: runner.os == 'Linux'
-        run: opam exec -- dune build --root compiler --display quiet --profile static
+        run: opam exec -- dune build --display quiet --profile static
 
       - name: Install npm packages
         run: npm ci --ignore-scripts
@@ -324,8 +324,8 @@ jobs:
         if: matrix.build_playground
         run: |
           opam exec -- node packages/playground-bundling/scripts/generate_cmijs.js
-          opam exec -- dune build --root compiler --profile browser
-          cp ./compiler/_build/default/jsoo/jsoo_playground_main.bc.js playground/compiler.js
+          opam exec -- dune build --profile browser
+          cp ./_build/default/compiler/jsoo/jsoo_playground_main.bc.js playground/compiler.js
 
       - name: Test playground compiler
         if: matrix.build_playground
diff --git a/compiler/.ocamlformat b/.ocamlformat
similarity index 100%
rename from compiler/.ocamlformat
rename to .ocamlformat
diff --git a/Makefile b/Makefile
index 67129e5954..237333c785 100644
--- a/Makefile
+++ b/Makefile
@@ -1,13 +1,13 @@
 SHELL = /bin/bash
 
-DUNE_BIN_DIR = ./compiler/_build/install/default/bin
+DUNE_BIN_DIR = ./_build/install/default/bin
 
 build: ninja rewatch
-	dune build --root compiler
+	dune build
 	./scripts/copyExes.js -compiler
 
 watch:
-	dune build --root compiler -w
+	dune build -w
 
 bench:
 	$(DUNE_BIN_DIR)/syntax_benchmarks
@@ -59,8 +59,8 @@ artifacts: lib
 
 # Builds the core playground bundle (without the relevant cmijs files for the runtime)
 playground:
-	dune build --root compiler --profile browser
-	cp ./compiler/_build/default/jsoo/jsoo_playground_main.bc.js playground/compiler.js
+	dune build --profile browser
+	cp ./_build/default/compiler/jsoo/jsoo_playground_main.bc.js playground/compiler.js
 
 # Creates all the relevant core and third party cmij files to side-load together with the playground bundle
 playground-cmijs: artifacts
diff --git a/dune b/dune
new file mode 100644
index 0000000000..a2dde03ccd
--- /dev/null
+++ b/dune
@@ -0,0 +1 @@
+(dirs compiler)
diff --git a/compiler/dune-project b/dune-project
similarity index 100%
rename from compiler/dune-project
rename to dune-project
diff --git a/packages/playground-bundling/scripts/generate_cmijs.js b/packages/playground-bundling/scripts/generate_cmijs.js
index 1358454694..d2f42b4640 100644
--- a/packages/playground-bundling/scripts/generate_cmijs.js
+++ b/packages/playground-bundling/scripts/generate_cmijs.js
@@ -21,11 +21,11 @@ const path = require("path");
 
 const resConfig = require("../rescript.json");
 
-const PROJECT_ROOT_DIR = path.join(__dirname, "..", "..", "..");
-const PLAYGROUND_DIR = path.join(PROJECT_ROOT_DIR, "playground");
+const RESCRIPT_COMPILER_ROOT_DIR = path.join(__dirname, "..", "..", "..");
+const PLAYGROUND_DIR = path.join(RESCRIPT_COMPILER_ROOT_DIR, "playground");
 
 // The playground-bundling root dir
-const PLAYGROUND_BUNDLING_DIR = path.join(__dirname, "..");
+const PROJECT_ROOT_DIR = path.join(__dirname, "..");
 
 // Final target output directory where all the cmijs will be stored
 const PACKAGES_DIR = path.join(PLAYGROUND_DIR, "packages");
@@ -36,7 +36,7 @@ if (!fs.existsSync(PACKAGES_DIR)) {
 }
 
 const config = {
-  cwd: PLAYGROUND_BUNDLING_DIR,
+  cwd: PROJECT_ROOT_DIR,
   encoding: "utf8",
   stdio: [0, 1, 2],
   shell: true,
@@ -49,7 +49,7 @@ function e(cmd) {
 }
 
 e(`npm install`);
-e(`npm link ${PROJECT_ROOT_DIR}`);
+e(`npm link ${RESCRIPT_COMPILER_ROOT_DIR}`);
 e(`npx rescript clean`);
 e(`npx rescript`);
 
@@ -59,7 +59,7 @@ const packages = resConfig["bs-dependencies"];
 // Otherwise we can't use them for compilation within the playground.
 function buildCompilerCmij() {
   const rescriptLibOcamlFolder = path.join(
-    PLAYGROUND_BUNDLING_DIR,
+    PROJECT_ROOT_DIR,
     "node_modules",
     "rescript",
     "lib",
@@ -82,14 +82,14 @@ function buildCompilerCmij() {
 function buildThirdPartyCmijs() {
   packages.forEach(function installLib(pkg) {
     const libOcamlFolder = path.join(
-      PLAYGROUND_BUNDLING_DIR,
+      PROJECT_ROOT_DIR,
       "node_modules",
       pkg,
       "lib",
       "ocaml",
     );
     const libEs6Folder = path.join(
-      PLAYGROUND_BUNDLING_DIR,
+      PROJECT_ROOT_DIR,
       "node_modules",
       pkg,
       "lib",
diff --git a/compiler/rescript.opam b/rescript.opam
similarity index 100%
rename from compiler/rescript.opam
rename to rescript.opam
diff --git a/scripts/dune.js b/scripts/dune.js
index 58f8459a69..dd22149381 100644
--- a/scripts/dune.js
+++ b/scripts/dune.js
@@ -3,7 +3,6 @@ var path = require("path");
 var duneBinDir = path.join(
   __dirname,
   "..",
-  "compiler",
   "_build",
   "install",
   "default",
diff --git a/scripts/format.sh b/scripts/format.sh
index e95ce0b0f4..aa5665c2d8 100755
--- a/scripts/format.sh
+++ b/scripts/format.sh
@@ -2,7 +2,7 @@
 
 shopt -s extglob
 
-dune build @fmt --root compiler --auto-promote
+dune build @fmt --auto-promote
 
 files=$(find runtime tests -type f \( -name "*.res" -o -name "*.resi" \) ! -name "syntaxErrors*" ! -path "tests/syntax_tests/*" ! -path "tests/gentype_tests/typescript-react-example/node_modules/*")
 ./cli/rescript format $files
diff --git a/scripts/format_check.sh b/scripts/format_check.sh
index de2ce39e3e..602b1f0519 100755
--- a/scripts/format_check.sh
+++ b/scripts/format_check.sh
@@ -9,7 +9,7 @@ reset='\033[0m'
 case "$(uname -s)" in
   Darwin|Linux)
     echo "Checking OCaml code formatting..."
-    if opam exec -- dune build @fmt --root compiler; then
+    if opam exec -- dune build @fmt; then
       printf "${successGreen}✅ OCaml code formatting ok.${reset}\n"
     else
       printf "${warningYellow}⚠️ OCaml code formatting issues found.${reset}\n"
diff --git a/scripts/test_syntax.sh b/scripts/test_syntax.sh
index b60f38cebd..4371fe4052 100755
--- a/scripts/test_syntax.sh
+++ b/scripts/test_syntax.sh
@@ -8,7 +8,9 @@
 scriptDir=`dirname $0`
 # macOS 12 does not have the realpath utility,
 # so let's use this workaround instead.
-DUNE_BIN_DIR=`cd "$scriptDir/../compiler/_build/install/default/bin"; pwd -P`
+DUNE_BIN_DIR=`cd "$scriptDir/../_build/install/default/bin"; pwd -P`
+
+$DUNE_BIN_DIR/syntax_tests
 
 function exp {
   echo "$(dirname $1)/expected/$(basename $1).txt"