diff --git a/readme.md b/readme.md
index 6a0a809..96dd8ef 100644
--- a/readme.md
+++ b/readme.md
@@ -103,4 +103,5 @@ from various contexts of CA, CI and OCI / OS.
 
 ### .sh
 
+* check if file & variable match
 * support opensuse
diff --git a/spcd.sh b/spcd.sh
index 32be9e9..583a114 100644
--- a/spcd.sh
+++ b/spcd.sh
@@ -42,8 +42,6 @@ spcd_main() {
 
 spcd_set_environment_variables() {
 	spcd_step "Set environment variables"
-	# check script first
-	[ -n "${SPCD}" ] || spcd_error_ci "SPCD"
 	# continuous integration / github → gitea → forgejo
 	if [ -n "${GITHUB_ACTIONS}" ]; then
 		# project branch
@@ -596,9 +594,6 @@ spcd_install_python() {
 
 # TODO move to Python
 spcd_install_packages() {
-	# dos2unix
-	spcd_step "Install dos2unix"
-	spcd_install_package "dos2unix"
 	# epel
 	spcd_step "Install EPEL"
 	case "${SPCD_OS_ID}" in
@@ -710,6 +705,14 @@ ${spcd_ipm__url}
 			"${spcd_ipm__url}" \
 			"${spcd_ipm__root}/${spcd_ipm__name}" ||
 			exit
+		spcd_ipm__script="${spcd_ipm__root}/${spcd_ipm__name}/spcd.sh"
+		if [ -f "${spcd_ipm__script}" ]; then
+			spcd_ipm__file="${spcd_ipm__root}/spcd.sh"
+			printf "%s" "${SPCD}" | tr -d "\r" >"${spcd_ipm__file}"
+			ls -l "${spcd_ipm__file}"
+			sha256sum "${spcd_ipm__file}"
+			sha256sum "${spcd_ipm__script}"
+		fi
 		spcd_ipm__path="${spcd_ipm__root}/${spcd_ipm__name}/${spcd_ipm__name}"
 		echo "\
 ${spcd_ipm__path}
@@ -717,18 +720,6 @@ ${spcd_ipm__path}
 ${SPCD_PYTHON_PACKAGES}"
 		cp --recursive "${spcd_ipm__path}" "${SPCD_PYTHON_PACKAGES}" ||
 			exit
-		# check matching of file and variable
-		spcd_ipm__script="${spcd_ipm__root}/${spcd_ipm__name}/spcd.sh"
-		if [ -f "${spcd_ipm__script}" ]; then
-			spcd_split
-			spcd_ipm__check="${spcd_ipm__root}/check.sha512sum"
-			sha512sum "${spcd_ipm__script}" > "${spcd_ipm__check}"
-			printf "%s" "${SPCD}" >"${spcd_ipm__script}"
-			ls -l "${spcd_ipm__script}"
-			dos2unix "${spcd_ipm__script}"
-			ls -l "${spcd_ipm__script}"
-			sha512sum -c "${spcd_ipm__check}" || spcd_error_ci "SPCD"
-		fi
 	done
 	spcd_split
 	spcd_ls "${SPCD_PYTHON_PACKAGES}"