diff --git a/src/main/kotlin/org/domaindrivenarchitecture/provs/desktop/domain/DesktopService.kt b/src/main/kotlin/org/domaindrivenarchitecture/provs/desktop/domain/DesktopService.kt
index 4044a12..e53ce95 100644
--- a/src/main/kotlin/org/domaindrivenarchitecture/provs/desktop/domain/DesktopService.kt
+++ b/src/main/kotlin/org/domaindrivenarchitecture/provs/desktop/domain/DesktopService.kt
@@ -79,7 +79,7 @@ fun Prov.provisionDesktop(
 
         aptInstall(BROWSER)
         aptInstall(EMAIL_CLIENT)
-        aptInstall(MESSENGER)
+        installDeltaChat()
         aptInstall(OFFICE_SUITE)
         aptInstall(CLIP_TOOLS)
 
diff --git a/src/main/kotlin/org/domaindrivenarchitecture/provs/desktop/infrastructure/DeltaChat.kt b/src/main/kotlin/org/domaindrivenarchitecture/provs/desktop/infrastructure/DeltaChat.kt
new file mode 100644
index 0000000..bc07f08
--- /dev/null
+++ b/src/main/kotlin/org/domaindrivenarchitecture/provs/desktop/infrastructure/DeltaChat.kt
@@ -0,0 +1,10 @@
+package org.domaindrivenarchitecture.provs.desktop.infrastructure
+
+import org.domaindrivenarchitecture.provs.framework.core.Prov
+import org.domaindrivenarchitecture.provs.framework.ubuntu.install.base.aptInstall
+
+fun Prov.installDeltaChat() = task {
+    aptInstall("flatpak ca-certificates")
+    cmd("sudo flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo")
+    cmd("sudo flatpak install -y --noninteractive flathub chat.delta.desktop")
+}
\ No newline at end of file
diff --git a/src/main/kotlin/org/domaindrivenarchitecture/provs/desktop/infrastructure/PackageBundles.kt b/src/main/kotlin/org/domaindrivenarchitecture/provs/desktop/infrastructure/PackageBundles.kt
index 9d34b34..75027c9 100644
--- a/src/main/kotlin/org/domaindrivenarchitecture/provs/desktop/infrastructure/PackageBundles.kt
+++ b/src/main/kotlin/org/domaindrivenarchitecture/provs/desktop/infrastructure/PackageBundles.kt
@@ -12,8 +12,6 @@ val BROWSER = "firefox chromium-browser"
 
 val EMAIL_CLIENT = "thunderbird"
 
-val MESSENGER = "deltachat-desktop"
-
 val OFFICE_SUITE =  "libreoffice"
 
 val CLIP_TOOLS = "xclip"
diff --git a/src/test/kotlin/org/domaindrivenarchitecture/provs/desktop/domain/DesktopServiceKtTest.kt b/src/test/kotlin/org/domaindrivenarchitecture/provs/desktop/domain/DesktopServiceKtTest.kt
index a619a89..6fe4fc5 100644
--- a/src/test/kotlin/org/domaindrivenarchitecture/provs/desktop/domain/DesktopServiceKtTest.kt
+++ b/src/test/kotlin/org/domaindrivenarchitecture/provs/desktop/domain/DesktopServiceKtTest.kt
@@ -45,6 +45,23 @@ internal class DesktopServiceKtTest {
         assertTrue(res.success)
     }
 
+    @ExtensiveContainerTest
+    fun provisionIDEDesktop() {
+        // given
+        val prov = defaultTestContainer()
+
+        // when
+        // in order to test DesktopType.OFFICE: fix installing libreoffice for a fresh container as it hangs the first time but succeeds 2nd time
+        val res = prov.provisionDesktop(
+            DesktopType.IDE,
+            gitUserName = "testuser",
+            gitEmail = "testuser@test.org",
+        )
+
+        // then
+        assertTrue(res.success)
+    }
+
 
     @ExtensiveContainerTest
     fun provisionDesktopFromConfigFile() {
diff --git a/src/test/kotlin/org/domaindrivenarchitecture/provs/desktop/infrastructure/DeltaChatKtTest.kt b/src/test/kotlin/org/domaindrivenarchitecture/provs/desktop/infrastructure/DeltaChatKtTest.kt
new file mode 100644
index 0000000..69757e6
--- /dev/null
+++ b/src/test/kotlin/org/domaindrivenarchitecture/provs/desktop/infrastructure/DeltaChatKtTest.kt
@@ -0,0 +1,19 @@
+package org.domaindrivenarchitecture.provs.desktop.infrastructure
+
+import org.domaindrivenarchitecture.provs.test.defaultTestContainer
+import org.domaindrivenarchitecture.provs.test.tags.ExtensiveContainerTest
+import org.junit.jupiter.api.Assertions.assertTrue
+
+class DeltaChatKtTest {
+
+    @ExtensiveContainerTest
+    fun installDeltaChat() {
+        // given
+        val a = defaultTestContainer()
+        // when
+        val res = a.task { installDeltaChat() }
+        // then
+        assertTrue(res.success)
+    }
+
+}