diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index a057267..0120a75 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -2,7 +2,7 @@ name: tests
 run-name: Tests
 on: [pull_request]
 jobs:
-  postman-tests:
+  tests:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
@@ -14,6 +14,9 @@ jobs:
       - uses: gradle/gradle-build-action@v2
       - run: gradle bootJar
       - run: java -jar build/libs/yaposs-0.0.1-SNAPSHOT.jar 2>&1 &
-      - uses: matt-ball/newman-action@master
+      - name: Postman tests
+        uses: matt-ball/newman-action@master
         with:
           collection: postman_collection.json
+      - name: Sonarlint
+        run: gradle sonarlintMain
diff --git a/.gitignore b/.gitignore
index a0b4819..180fc62 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,4 +6,7 @@ gradlew
 
 .idea/
 
-.DS_Store
\ No newline at end of file
+.DS_Store
+
+# Secrets #
+.env
diff --git a/README.md b/README.md
index dda7e26..ffc9f9f 100644
--- a/README.md
+++ b/README.md
@@ -4,14 +4,14 @@
 
 __Build tool__: Gradle (run with `gradle bootRun`)
 
-__IDE__: IntelliJ IDEA CE (it's free btw)
+__IDE__: IntelliJ IDEA CE (it's free btw), with these plugins:
+- Sonarlint
 
 __Java version__: OpenJDK 17
 
 __Others useful tools__:
 - <https://editor.swagger.io> - Online OpenApi viewer
-
-## Building & Running
+- Sonarlint - can be used via an IntelliJ plugin, gradle with `gradle solarlintMain` and is used in CI
 
 ## Testing
 
diff --git a/build.gradle b/build.gradle
index ef075b0..3702bf2 100644
--- a/build.gradle
+++ b/build.gradle
@@ -5,7 +5,7 @@ plugins {
 	id 'org.springframework.boot' version '3.2.0'
 	id 'io.spring.dependency-management' version '1.1.4'
 	id "com.google.protobuf" version "0.9.4"
-	id 'com.bmuschko.docker-spring-boot-application' version '6.7.0'
+	id "name.remal.sonarlint" version "3.4.1"
 }
 
 group = 'com.spaghettininjas'
@@ -42,7 +42,9 @@ protobuf {
 
 tasks.register('postman')  {
 	dependsOn 'bootJar'
-	exec {
-		commandLine 'newman', 'run', 'postman_collection.json'
+	doLast {
+		exec {
+			commandLine 'newman', 'run', 'postman_collection.json'
+		}
 	}
 }
\ No newline at end of file
diff --git a/src/main/java/com/spaghettininjas/yaposs/controllers/CustomersController.java b/src/main/java/com/spaghettininjas/yaposs/controllers/CustomersController.java
index 8cfa75a..f3bfa01 100644
--- a/src/main/java/com/spaghettininjas/yaposs/controllers/CustomersController.java
+++ b/src/main/java/com/spaghettininjas/yaposs/controllers/CustomersController.java
@@ -10,7 +10,7 @@
 @RequestMapping("/api/Customers")
 public class CustomersController {
 
-    @RequestMapping(value = "/{id}", method = RequestMethod.GET, produces=MediaType.APPLICATION_JSON_VALUE)
+    @GetMapping(value = "/{id}", produces=MediaType.APPLICATION_JSON_VALUE)
     Customer get(@PathVariable int id) {
         return Customer.newBuilder()
                 .setId(id)