diff --git a/README.md b/README.md
index 2ffc955..eb2a3d6 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
-# ESP32 build - ESP-IDF v4.x
+# ESP-IDF v4.x installer
 
-GitHub Action to build your ESP32 code with Espressif IoT Development Framework v4.x
+GitHub Action to install Espressif IoT Development Framework v4.x for building ESP32 code.
 
 The usable ESP-IDF versions are:
 
@@ -13,8 +13,17 @@ The usable ESP-IDF versions are:
 
 ## Usage
 
+Source the ESP-IDF required environment variables before building your code:
+
+```sh
+source ~/esp/esp-idf/export.sh
+idf.py build
+```
+
 It is used at least in [ESP32HAL](https://github.com/CalinRadoni/ESP32HAL) repository.
 
+### Example
+
 ```yml
 name: ESP32 Builder
 
@@ -22,24 +31,32 @@ on: [push]
 
 jobs:
   builder:
-    name: Builder for test project
+    name: Builder for test ESP32 project
     runs-on: ubuntu-20.04
 
     steps:
       - name: Checkout code
         uses: actions/checkout@v2
 
-      - name: Build
-        uses: CalinRadoni/esp-idf-v4-action@v1
+      - name: Install ESP-IDF
+        uses: CalinRadoni/esp-idf-v4-action@v2
         with:
           esp_idf_version: 'v4.1'
-          src_directory: '.'
+
+      - name: Build
+        run: |
+          source ~/esp/esp-idf/export.sh
+          idf.py reconfigure
+          idf.py app
+          idf.py size
 ```
 
 ## About
 
 It was tested in the official Ubuntu Focal Docker container and it contains some minor extra steps not really needed for the GitHub-hosted Ubuntu 20.04 LTS runner, like the installation of `tzdata` and `python3-libusb1`. I left them for completeness if more tests are needed.
 
+Version 2 of this action does not build the ESP32 code, like version 1 has done it, to allow custom build steps.
+
 ## License
 
 This repository is licensed with the [MIT License](LICENSE).
diff --git a/action.yml b/action.yml
index 93c9448..5b1aa28 100644
--- a/action.yml
+++ b/action.yml
@@ -1,5 +1,5 @@
-name: 'ESP32 build - ESP-IDF v4'
-description: 'GitHub Action to build your ESP32 code with Espressif IoT Development Framework v4.x'
+name: 'ESP-IDF v4.x installer'
+description: 'GitHub Action to install Espressif IoT Development Framework v4.x for building ESP32 code.'
 
 branding:
   icon: check
@@ -10,19 +10,9 @@ inputs:
     description: 'Required ESP-IDF version (v4.1, release/v4.2, ...)'
     required: false
     default: 'v4.1'
-  src_directory:
-    description: 'The directory with source code'
-    required: false
-    default: '.'
-  idf_reconfigure:
-    description: 'Run the `idf.py reconfigure` command'
-    required: false
-    default: 'true'
 
 runs:
   using: "composite"
   steps:
     - run: ${{ github.action_path }}/install.sh ${{ inputs.esp_idf_version }}
       shell: bash
-    - run: ${{ github.action_path }}/build.sh ${{ inputs.esp_idf_version }} ${{ inputs.src_directory }} ${{ inputs.idf_reconfigure }}
-      shell: bash
diff --git a/build.sh b/build.sh
deleted file mode 100755
index e2aee8e..0000000
--- a/build.sh
+++ /dev/null
@@ -1,21 +0,0 @@
-#!/bin/bash
-
-source ~/esp/esp-idf/export.sh
-
-esp_idf_version="$1"
-src_directory="$2"
-idf_reconfigure="$3"
-
-cd "$src_directory"
-
-if [[ "$idf_reconfigure" == "true" ]]; then
-  echo -e "\n\n## Reconfigure the project"
-  idf.py reconfigure
-fi
-
-echo -e "\n\n## Build the app"
-idf.py app
-
-echo -e "\n\n## Show sizes"
-idf.py size
-