diff --git a/packages/servers/serverDev/README.md b/packages/servers/serverDev/README.md
index 1802194d4..147bbfe10 100644
--- a/packages/servers/serverDev/README.md
+++ b/packages/servers/serverDev/README.md
@@ -8,6 +8,7 @@ The server consists of a Lowdefy Graphql server, and a static file server to ser
 
 ## Running a development server
 
+- Build the repository in development mode by running `yarn build:dev` at the root of the repository.
 - Create a `lowdefy.yaml` file in the root of the package directory, and build this configuration with the cli using `lowdefy build`.
 - Build the dev server using `yarn build`.
 - Run the dev server using `yarn start`.
diff --git a/packages/shell/package.json b/packages/shell/package.json
index 55f0f0129..806fb6c94 100644
--- a/packages/shell/package.json
+++ b/packages/shell/package.json
@@ -32,6 +32,7 @@
   "scripts": {
     "babel": "babel src/location.js --out-dir dist",
     "build": "yarn webpack && yarn babel",
+    "build:dev": "NODE_ENV=development yarn webpack && yarn babel",
     "clean": "rm -rf dist",
     "prepare": "yarn build",
     "webpack": "webpack --config webpack.config.js"