diff --git a/ocaml/.ocamlformat b/ocaml/.ocamlformat
new file mode 100644
index 00000000..37525ae3
--- /dev/null
+++ b/ocaml/.ocamlformat
@@ -0,0 +1 @@
+profile = default
diff --git a/ocaml/dune-project b/ocaml/dune-project
new file mode 100644
index 00000000..09667c2b
--- /dev/null
+++ b/ocaml/dune-project
@@ -0,0 +1,19 @@
+(lang dune 3.11)
+(generate_opam_files true)
+
+(name gilded_rose)
+(source
+ (github emilybache/GildedRose-Refactoring-Kata))
+(authors "Maiste <dev@maiste.fr>")
+(maintainers "Maiste <dev@maiste.fr>")
+(license MIT)
+(documentation https://github.com/emilybache/GildedRose-Refactoring-Kata)
+
+(package
+ (name gilded_rose)
+ (synopsis "Gilded Rose Refactoring Kata")
+ (description "The Gilded Rose Refactoring Kata in OCaml")
+ (depends
+   (ocaml (>= 4.08))
+   dune))
+
diff --git a/ocaml/gilded_rose.opam b/ocaml/gilded_rose.opam
new file mode 100644
index 00000000..57ea38b4
--- /dev/null
+++ b/ocaml/gilded_rose.opam
@@ -0,0 +1,31 @@
+# This file is generated by dune, edit dune-project instead
+opam-version: "2.0"
+synopsis: "Gilded Rose Refactoring Kata"
+description: "The Gilded Rose Refactoring Kata in OCaml"
+maintainer: ["Maiste <dev@maiste.fr>"]
+authors: ["Maiste <dev@maiste.fr>"]
+license: "MIT"
+homepage: "https://github.com/emilybache/GildedRose-Refactoring-Kata"
+doc: "https://github.com/emilybache/GildedRose-Refactoring-Kata"
+bug-reports:
+  "https://github.com/emilybache/GildedRose-Refactoring-Kata/issues"
+depends: [
+  "ocaml" {>= "4.08"}
+  "dune" {>= "3.11"}
+  "odoc" {with-doc}
+]
+build: [
+  ["dune" "subst"] {dev}
+  [
+    "dune"
+    "build"
+    "-p"
+    name
+    "-j"
+    jobs
+    "@install"
+    "@runtest" {with-test}
+    "@doc" {with-doc}
+  ]
+]
+dev-repo: "git+https://github.com/emilybache/GildedRose-Refactoring-Kata.git"
diff --git a/ocaml/lib/dune b/ocaml/lib/dune
new file mode 100644
index 00000000..2ef54c3f
--- /dev/null
+++ b/ocaml/lib/dune
@@ -0,0 +1,2 @@
+(library
+ (name gilded_rose))
diff --git a/ocaml/test/dune b/ocaml/test/dune
new file mode 100644
index 00000000..1d1b4a80
--- /dev/null
+++ b/ocaml/test/dune
@@ -0,0 +1,2 @@
+(test
+ (name gilded_rose))
diff --git a/ocaml/test/gilded_rose.ml b/ocaml/test/gilded_rose.ml
new file mode 100644
index 00000000..e69de29b