diff --git a/doc/install_conf_1.png b/.assets/install_conf_1.png
similarity index 100%
rename from doc/install_conf_1.png
rename to .assets/install_conf_1.png
diff --git a/doc/install_conf_2.png b/.assets/install_conf_2.png
similarity index 100%
rename from doc/install_conf_2.png
rename to .assets/install_conf_2.png
diff --git a/doc/usage_student_1.png b/.assets/usage_student_1.png
similarity index 100%
rename from doc/usage_student_1.png
rename to .assets/usage_student_1.png
diff --git a/doc/usage_student_2.png b/.assets/usage_student_2.png
similarity index 100%
rename from doc/usage_student_2.png
rename to .assets/usage_student_2.png
diff --git a/doc/usage_student_3.png b/.assets/usage_student_3.png
similarity index 100%
rename from doc/usage_student_3.png
rename to .assets/usage_student_3.png
diff --git a/doc/usage_student_4.png b/.assets/usage_student_4.png
similarity index 100%
rename from doc/usage_student_4.png
rename to .assets/usage_student_4.png
diff --git a/doc/usage_teacher_1.png b/.assets/usage_teacher_1.png
similarity index 100%
rename from doc/usage_teacher_1.png
rename to .assets/usage_teacher_1.png
diff --git a/doc/usage_teacher_2.png b/.assets/usage_teacher_2.png
similarity index 100%
rename from doc/usage_teacher_2.png
rename to .assets/usage_teacher_2.png
diff --git a/doc/usage_teacher_3.png b/.assets/usage_teacher_3.png
similarity index 100%
rename from doc/usage_teacher_3.png
rename to .assets/usage_teacher_3.png
diff --git a/dta.zip b/dta.zip
deleted file mode 100644
index 01aa7904c3ee85d7f0d91d2f601f81b77e96df83..0000000000000000000000000000000000000000
Binary files a/dta.zip and /dev/null differ
diff --git a/teacher-dta.txt b/teacher-dta.txt
deleted file mode 100644
index 276c40ca98b5f7036c69b17a5a84ebffe77adca8..0000000000000000000000000000000000000000
--- a/teacher-dta.txt
+++ /dev/null
@@ -1 +0,0 @@
-dtt::https://transfer.hft-stuttgart.de/gitlab/dtt/example_openjdk11-junit5-calculator-test.git::none::none::hftstuttgart/dta-jdk17-junit5-testrunner:latest