diff --git a/readme.md b/readme.md
index e73e9ee..a42983a 100644
--- a/readme.md
+++ b/readme.md
@@ -86,18 +86,19 @@ from various contexts of CA, CI and OCI / OS.
   * actions
   * includes
 * relay environment module name
+* write tests
 
 ### sh
 
-* support opensuse operating system
-* write tests
+* support
+  * arch python virtual environment
+  * opensuse operating system
 
 ### sh → py
 
 * check file & variable sums
 * install system packages
   * epel
-    * bats
     * plantuml
     * shellcheck
   * graphviz
@@ -114,7 +115,7 @@ from various contexts of CA, CI and OCI / OS.
 ### py
 
 * detect ssh private key type
-* check
+* implement project repository cloning
+* lint
   * .py
   * .sh
-* write tests
diff --git a/spcd.sh b/spcd.sh
index 47cc216..7557cd7 100644
--- a/spcd.sh
+++ b/spcd.sh
@@ -612,7 +612,8 @@ spcd_install_python() {
         spcd_install_package "python3-venv"
         ;;
     "${SPCD_OS_ARCH}")
-        spcd_install_package "expat"
+        echo "Not supported!"
+        exit 255
         ;;
     *) ;;
     esac
@@ -690,9 +691,6 @@ spcd_install_packages() {
         ;;
     *) ;;
     esac
-    # bats
-    spcd_step "Install BATS"
-    spcd_install_package "bats"
     # graphviz
     spcd_step "Install GraphViz"
     spcd_install_package "graphviz"