diff --git a/doc/details.md b/doc/details.md
index 1449a3b..56042c5 100644
--- a/doc/details.md
+++ b/doc/details.md
@@ -1,3 +1,19 @@
 # Les étapes de codes
 
-1.
+1. yarn add @vue/composition-api
+1. vueconfig
+1. remove rule for camel case : `eslint`
+1. `yarn lint --fix`
+1. `main.ts`: `usecomposition`
+1. `App.vue`: `cleanappvue`
+1. `DevSession.vue` : vuecompo `components/DevSession.vue` & devsession
+1. `Home.vue`: inithome
+1. `useTimer`: inittimer // WARNING // the name of the hook is: useTimer!
+1. `Home.vue`: setuphome
+1. `Home.vue`: styletimer
+1. create `app.scss` and import it in `App.vue`.
+1. `app.scss`: styleappstyles
+
+## Ajouter de la musique
+
+## Ajouter les notifications