diff --git a/config-portable.yaml b/config-portable.yaml
new file mode 100644
index 0000000..2362b5f
--- /dev/null
+++ b/config-portable.yaml
@@ -0,0 +1,29 @@
+parameters:
+  custom_target_branch: "a10s-portable"
+  pre_clean: true
+
+actions:
+  - run_script:
+      - script: "replace_spec.sh"
+        cwd: "rpms"
+
+  - replace:
+      - target: "spec"
+        find: |
+              %if 0%{?centos} != 0 && 0%{?centos} != 0%{centos_buildos}
+              %global pkgos rhel%{?centos}
+              %endif
+        replace: |
+              %if 0%{?centos} != 0 && 0%{?centos} != 0%{centos_buildos}
+              %global pkgos rhel%{?centos}
+              %endif
+              %if 0%{?almalinux}
+              %undefine pkgos
+              %endif
+        count: 1
+
+  - changelog_entry:
+      - name: "Eduard Abdullin"
+        email: "eabdullin@almalinux.org"
+        line:
+          - "Portable build"
diff --git a/scripts/replace_spec.sh b/scripts/replace_spec.sh
new file mode 100644
index 0000000..b835d79
--- /dev/null
+++ b/scripts/replace_spec.sh
@@ -0,0 +1,2 @@
+rm java-21-openjdk.spec
+ln -s java-21-openjdk-portable.specfile java-21-openjdk.spec