diff --git a/README.md b/README.md
index ca20268..365f69f 100644
--- a/README.md
+++ b/README.md
@@ -3,11 +3,11 @@ Nombres
 
 Convert ints into french.
 
-Some references:
+Provided as a 1-function library, and a basic command-line utility (`nbr` — will
+certainly be renamed to something longer and less likely to name clash).
+
+More advanced functionnalities could be added when needed. Here are some
+references:
 - https://leconjugueur.lefigaro.fr/frlesnombres.php
 - https://www.miakinen.net/vrac/nombres
 - https://www.dcode.fr/ecriture-nombre-lettres
-
-
-Provided as a 1-function library, and a basic command-line utility (`nbr` — will
-certainly be renamed to something longer and less likely to name clash).
diff --git a/bin/nbr.ml b/bin/nbr.ml
index ffdabfc..6dd5298 100644
--- a/bin/nbr.ml
+++ b/bin/nbr.ml
@@ -1,5 +1,5 @@
 let rec parse_and_print () =
-  print_string "Entier ? > ";
+  print_string "Entier (Ou [Q]uitter [H]elp) ? > ";
   flush stdout;
   input_line stdin |> function
   | "q" | "Q" -> ()
diff --git a/dune-project b/dune-project
index 793c088..199baac 100644
--- a/dune-project
+++ b/dune-project
@@ -1,4 +1,4 @@
-(lang dune 2.0)
+(lang dune 2.8)
 
 (generate_opam_files true)
 (name nombres)
diff --git a/lib/nombres.ml b/lib/nombres.ml
index 247568a..922c0d6 100644
--- a/lib/nombres.ml
+++ b/lib/nombres.ml
@@ -45,12 +45,12 @@ and jusqua_100 dizaine n =
 and jusqua_1000 n =
   let centaine = n / 100 and reste = n mod 100 in
   let cent = if centaine > 1 && reste = 0 then "cents" else "cent" in
-  ( (if centaine = 1 then [ cent ] else [ nombre_of_int centaine; cent ])
-  @ if reste = 0 then [] else [ nombre_of_int reste ] )
+  ((if centaine = 1 then [ cent ] else [ nombre_of_int centaine; cent ])
+  @ if reste = 0 then [] else [ nombre_of_int reste ])
   |> String.concat " "
 
 and jusqua_1000000 n =
   let milliers = n / 1000 and reste = n mod 1000 in
-  ( (if milliers = 1 then [ "mille" ] else [ nombre_of_int milliers; "mille" ])
-  @ if reste = 0 then [] else [ nombre_of_int reste ] )
+  ((if milliers = 1 then [ "mille" ] else [ nombre_of_int milliers; "mille" ])
+  @ if reste = 0 then [] else [ nombre_of_int reste ])
   |> String.concat " "
diff --git a/nombres.opam b/nombres.opam
deleted file mode 100644
index 464839e..0000000
--- a/nombres.opam
+++ /dev/null
@@ -1,27 +0,0 @@
-# This file is generated by dune, edit dune-project instead
-opam-version: "2.0"
-description: """
-Convert ints into french.
-
-Some references:
-- https://leconjugueur.lefigaro.fr/frlesnombres.php
-- https://www.miakinen.net/vrac/nombres
-- https://www.dcode.fr/ecriture-nombre-lettres
-"""
-depends: [
-  "dune" {>= "2.0"}
-]
-build: [
-  ["dune" "subst"] {pinned}
-  [
-    "dune"
-    "build"
-    "-p"
-    name
-    "-j"
-    jobs
-    "@install"
-    "@runtest" {with-test}
-    "@doc" {with-doc}
-  ]
-]