diff --git a/unit2_building_spring_boot_webapp.md b/unit2_building_spring_boot_webapp.md
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--- a/unit2_building_spring_boot_webapp.md
+++ b/unit2_building_spring_boot_webapp.md
@@ -13,4 +13,32 @@ Disclaimer: how to use this but not going fully in details in this chapter.
 - Spring Boot
 - Spring MVC
 - Spring Data JPA (Hibernate)
-- H2 database
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+- H2 database
+
+
+
+## Spring Initializr
+
+Back in time you needed to create you own project with maven. Spring Initializr does this job for you (maven or gradle).
+
+https://github.com/spring-projects/spring-boot/tree/main/spring-boot-project/spring-boot-starters
+
+
+
+Create a simple webapp with: https://start.spring.io/
+
+- Spring Web (Spring mvc)
+- Spring Data JPA (abstraction for hibernate)
+- H2 Database (our in memory database)
+
+
+
+### Open the project in IntelliJ
+
+For a maven project: ***From Existing source > Select the pom.xml*** file at the root of the project
+
+
+
+Session 3 - 28/10/2022 - ended here
+
+<hr>
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