diff --git a/releases/specs/arm64/stage1-openrc-23-su.spec b/releases/specs/arm64/stage1-openrc-23-su.spec
new file mode 100644
index 00000000..f3941b0a
--- /dev/null
+++ b/releases/specs/arm64/stage1-openrc-23-su.spec
@@ -0,0 +1,12 @@
+subarch: arm64
+target: stage1
+version_stamp: openrc-splitusr-@TIMESTAMP@
+rel_type: 23.0-splitusr
+profile: default/linux/arm64/23.0/split-usr
+snapshot_treeish: @TREEISH@
+source_subpath: 23.0-splitusr/stage3-arm64-openrc-splitusr-latest.tar.xz
+compression_mode: pixz
+update_seed: yes
+update_seed_command: -uDN @world
+portage_confdir: @REPO_DIR@/releases/portage/stages
+portage_prefix: releng
diff --git a/releases/specs/arm64/stage3-openrc-23-su.spec b/releases/specs/arm64/stage3-openrc-23-su.spec
new file mode 100644
index 00000000..619f902c
--- /dev/null
+++ b/releases/specs/arm64/stage3-openrc-23-su.spec
@@ -0,0 +1,10 @@
+subarch: arm64
+target: stage3
+version_stamp: openrc-splitusr-@TIMESTAMP@
+rel_type: 23.0-splitusr
+profile: default/linux/arm64/23.0/split-usr
+snapshot_treeish: @TREEISH@
+source_subpath: 23.0-splitusr/stage1-arm64-openrc-splitusr-@TIMESTAMP@.tar.xz
+compression_mode: pixz
+portage_confdir: @REPO_DIR@/releases/portage/stages
+portage_prefix: releng
diff --git a/tools/catalyst-auto-arm64.conf b/tools/catalyst-auto-arm64.conf
index 27b70c7e..5d2d1268 100644
--- a/tools/catalyst-auto-arm64.conf
+++ b/tools/catalyst-auto-arm64.conf
@@ -8,6 +8,7 @@ SUBARCH=arm64
 
 SETS="
 	openrc_23
+	openrc_23_su
 	systemd_23
 	llvm_openrc_23
 	llvm_systemd_23
@@ -30,6 +31,8 @@ SET_systemd_mu_SPECS="stage1-systemd-mu.spec stage3-systemd-mu.spec stage3d-syst
 
 SET_openrc_23_SPECS="stage1-openrc-23.spec stage3-openrc-23.spec stage3d-openrc-23.spec"
 
+SET_openrc_23_su_SPECS="stage1-openrc-23-su.spec stage3-openrc-23-su.spec"
+
 SET_systemd_23_SPECS="stage1-systemd-23.spec stage3-systemd-23.spec stage3d-systemd-23.spec"
 
 SET_llvm_openrc_SPECS="llvm/stage1-openrc.spec llvm/stage3-openrc.spec"