diff --git a/meta-romulus/recipes-kernel/linux/linux-aspeed_%.bbappend b/meta-romulus/recipes-kernel/linux/linux-aspeed_%.bbappend
index fd0a149..664d7e1 100644
--- a/meta-romulus/recipes-kernel/linux/linux-aspeed_%.bbappend
+++ b/meta-romulus/recipes-kernel/linux/linux-aspeed_%.bbappend
@@ -1,2 +1,2 @@
 FILESEXTRAPATHS_prepend_romulus := "${THISDIR}/${PN}:"
-SRC_URI += "file://romulus.cfg"
+SRC_URI_append_romulus = " file://romulus.cfg"
diff --git a/meta-romulus/recipes-phosphor/fans/phosphor-fan-control-events-config-native.bbappend b/meta-romulus/recipes-phosphor/fans/phosphor-fan-control-events-config-native.bbappend
index 72d991c..4db6f3a 100644
--- a/meta-romulus/recipes-phosphor/fans/phosphor-fan-control-events-config-native.bbappend
+++ b/meta-romulus/recipes-phosphor/fans/phosphor-fan-control-events-config-native.bbappend
@@ -1 +1 @@
-FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
+FILESEXTRAPATHS_prepend_romulus := "${THISDIR}/${PN}:"
diff --git a/meta-romulus/recipes-phosphor/fans/phosphor-fan-control-fan-config-native.bbappend b/meta-romulus/recipes-phosphor/fans/phosphor-fan-control-fan-config-native.bbappend
index 72d991c..4db6f3a 100644
--- a/meta-romulus/recipes-phosphor/fans/phosphor-fan-control-fan-config-native.bbappend
+++ b/meta-romulus/recipes-phosphor/fans/phosphor-fan-control-fan-config-native.bbappend
@@ -1 +1 @@
-FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
+FILESEXTRAPATHS_prepend_romulus := "${THISDIR}/${PN}:"
diff --git a/meta-romulus/recipes-phosphor/fans/phosphor-fan-control-zone-conditions-config-native.bbappend b/meta-romulus/recipes-phosphor/fans/phosphor-fan-control-zone-conditions-config-native.bbappend
index 72d991c..4db6f3a 100644
--- a/meta-romulus/recipes-phosphor/fans/phosphor-fan-control-zone-conditions-config-native.bbappend
+++ b/meta-romulus/recipes-phosphor/fans/phosphor-fan-control-zone-conditions-config-native.bbappend
@@ -1 +1 @@
-FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
+FILESEXTRAPATHS_prepend_romulus := "${THISDIR}/${PN}:"
diff --git a/meta-romulus/recipes-phosphor/fans/phosphor-fan-control-zone-config-native.bbappend b/meta-romulus/recipes-phosphor/fans/phosphor-fan-control-zone-config-native.bbappend
index 6d4804d..7be43dd 100644
--- a/meta-romulus/recipes-phosphor/fans/phosphor-fan-control-zone-config-native.bbappend
+++ b/meta-romulus/recipes-phosphor/fans/phosphor-fan-control-zone-config-native.bbappend
@@ -1,2 +1,2 @@
-FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
+FILESEXTRAPATHS_prepend_romulus := "${THISDIR}/${PN}:"
 
diff --git a/meta-romulus/recipes-phosphor/fans/phosphor-fan-monitor-config-native.bbappend b/meta-romulus/recipes-phosphor/fans/phosphor-fan-monitor-config-native.bbappend
index 72d991c..4db6f3a 100644
--- a/meta-romulus/recipes-phosphor/fans/phosphor-fan-monitor-config-native.bbappend
+++ b/meta-romulus/recipes-phosphor/fans/phosphor-fan-monitor-config-native.bbappend
@@ -1 +1 @@
-FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
+FILESEXTRAPATHS_prepend_romulus := "${THISDIR}/${PN}:"
diff --git a/meta-romulus/recipes-phosphor/fans/phosphor-fan-presence-config-native.bbappend b/meta-romulus/recipes-phosphor/fans/phosphor-fan-presence-config-native.bbappend
index 72d991c..4db6f3a 100644
--- a/meta-romulus/recipes-phosphor/fans/phosphor-fan-presence-config-native.bbappend
+++ b/meta-romulus/recipes-phosphor/fans/phosphor-fan-presence-config-native.bbappend
@@ -1 +1 @@
-FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
+FILESEXTRAPATHS_prepend_romulus := "${THISDIR}/${PN}:"
diff --git a/meta-romulus/recipes-phosphor/fans/phosphor-fan_%.bbappend b/meta-romulus/recipes-phosphor/fans/phosphor-fan_%.bbappend
index 98b0810..072623e 100644
--- a/meta-romulus/recipes-phosphor/fans/phosphor-fan_%.bbappend
+++ b/meta-romulus/recipes-phosphor/fans/phosphor-fan_%.bbappend
@@ -1,11 +1,11 @@
-FILESEXTRAPATHS_append := "${THISDIR}/${PN}:"
+FILESEXTRAPATHS_append_romulus := "${THISDIR}/${PN}:"
 
 # Package configuration
 FAN_PACKAGES += " \
         phosphor-cooling-type \
 "
 
-PACKAGECONFIG += "cooling-type"
+PACKAGECONFIG_append_romulus = " cooling-type"
 
 TMPL_COOLING = "phosphor-cooling-type@.service"
 INSTFMT_COOLING = "phosphor-cooling-type@{0}.service"
@@ -18,5 +18,5 @@
 
 COOLING_ENV_FMT = "obmc/phosphor-fan/phosphor-cooling-type-{0}.conf"
 
-SYSTEMD_ENVIRONMENT_FILE_phosphor-cooling-type += "${@compose_list(d, 'COOLING_ENV_FMT', 'OBMC_CHASSIS_INSTANCES')}"
+SYSTEMD_ENVIRONMENT_FILE_phosphor-cooling-type_append_romulus = " ${@compose_list(d, 'COOLING_ENV_FMT', 'OBMC_CHASSIS_INSTANCES')}"
 
diff --git a/meta-romulus/recipes-phosphor/flash/phosphor-software-manager_%.bbappend b/meta-romulus/recipes-phosphor/flash/phosphor-software-manager_%.bbappend
index c92b1a8..18f76ee 100644
--- a/meta-romulus/recipes-phosphor/flash/phosphor-software-manager_%.bbappend
+++ b/meta-romulus/recipes-phosphor/flash/phosphor-software-manager_%.bbappend
@@ -1 +1 @@
-PACKAGECONFIG_append = " verify_signature"
+PACKAGECONFIG_append_romulus = " verify_signature"
diff --git a/meta-romulus/recipes-phosphor/host/p9-host-start.bbappend b/meta-romulus/recipes-phosphor/host/p9-host-start.bbappend
index 4cac490..278470f 100644
--- a/meta-romulus/recipes-phosphor/host/p9-host-start.bbappend
+++ b/meta-romulus/recipes-phosphor/host/p9-host-start.bbappend
@@ -1,3 +1,3 @@
-RDEPENDS_${PN} += 'avsbus-control'
-RDEPENDS_${PN} += 'vrm-control'
-RDEPENDS_${PN}_remove += "p9-vcs-workaround"
+RDEPENDS_${PN}_append_romulus = " avsbus-control"
+RDEPENDS_${PN}_append_romulus = " vrm-control"
+RDEPENDS_${PN}_remove_romulus = "p9-vcs-workaround"
diff --git a/meta-romulus/recipes-phosphor/images/obmc-phosphor-image.bbappend b/meta-romulus/recipes-phosphor/images/obmc-phosphor-image.bbappend
index 772685d..ccf7b45 100644
--- a/meta-romulus/recipes-phosphor/images/obmc-phosphor-image.bbappend
+++ b/meta-romulus/recipes-phosphor/images/obmc-phosphor-image.bbappend
@@ -1 +1 @@
-OBMC_IMAGE_EXTRA_INSTALL_append = " mboxd liberation-fonts uart-render-controller"
+OBMC_IMAGE_EXTRA_INSTALL_append_romulus = " mboxd liberation-fonts uart-render-controller"
diff --git a/meta-romulus/recipes-phosphor/ipmi/phosphor-ipmi-fru-properties%.bbappend b/meta-romulus/recipes-phosphor/ipmi/phosphor-ipmi-fru-properties%.bbappend
index 72d991c..4db6f3a 100644
--- a/meta-romulus/recipes-phosphor/ipmi/phosphor-ipmi-fru-properties%.bbappend
+++ b/meta-romulus/recipes-phosphor/ipmi/phosphor-ipmi-fru-properties%.bbappend
@@ -1 +1 @@
-FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
+FILESEXTRAPATHS_prepend_romulus := "${THISDIR}/${PN}:"
diff --git a/meta-romulus/recipes-phosphor/ipmi/phosphor-ipmi-fru-read-bmc-inventory%.bbappend b/meta-romulus/recipes-phosphor/ipmi/phosphor-ipmi-fru-read-bmc-inventory%.bbappend
index 72d991c..4db6f3a 100644
--- a/meta-romulus/recipes-phosphor/ipmi/phosphor-ipmi-fru-read-bmc-inventory%.bbappend
+++ b/meta-romulus/recipes-phosphor/ipmi/phosphor-ipmi-fru-read-bmc-inventory%.bbappend
@@ -1 +1 @@
-FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
+FILESEXTRAPATHS_prepend_romulus := "${THISDIR}/${PN}:"
diff --git a/meta-romulus/recipes-phosphor/ipmi/phosphor-ipmi-sensor-inventory%.bbappend b/meta-romulus/recipes-phosphor/ipmi/phosphor-ipmi-sensor-inventory%.bbappend
index 72d991c..4db6f3a 100644
--- a/meta-romulus/recipes-phosphor/ipmi/phosphor-ipmi-sensor-inventory%.bbappend
+++ b/meta-romulus/recipes-phosphor/ipmi/phosphor-ipmi-sensor-inventory%.bbappend
@@ -1 +1 @@
-FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
+FILESEXTRAPATHS_prepend_romulus := "${THISDIR}/${PN}:"
diff --git a/meta-romulus/recipes-phosphor/mboxd/mboxd_%.bbappend b/meta-romulus/recipes-phosphor/mboxd/mboxd_%.bbappend
index 8b6248a..566fc6c 100644
--- a/meta-romulus/recipes-phosphor/mboxd/mboxd_%.bbappend
+++ b/meta-romulus/recipes-phosphor/mboxd/mboxd_%.bbappend
@@ -1 +1 @@
-MBOXD_FLASH_SIZE = "64M"
+MBOXD_FLASH_SIZE_romulus = "64M"
diff --git a/meta-romulus/recipes-phosphor/packagegroups/packagegroup-obmc-apps.bbappend b/meta-romulus/recipes-phosphor/packagegroups/packagegroup-obmc-apps.bbappend
index ea1a7e3..920e529 100644
--- a/meta-romulus/recipes-phosphor/packagegroups/packagegroup-obmc-apps.bbappend
+++ b/meta-romulus/recipes-phosphor/packagegroups/packagegroup-obmc-apps.bbappend
@@ -1,2 +1,2 @@
-RDEPENDS_${PN}-inventory += " openpower-occ-control phosphor-cooling-type id-button"
-RDEPENDS_${PN}-extras += " phosphor-webui phosphor-image-signing"
+RDEPENDS_${PN}-inventory_append_romulus = " openpower-occ-control phosphor-cooling-type id-button"
+RDEPENDS_${PN}-extras_append_romulus = " phosphor-webui phosphor-image-signing"
diff --git a/meta-romulus/recipes-phosphor/sensors/phosphor-hwmon_%.bbappend b/meta-romulus/recipes-phosphor/sensors/phosphor-hwmon_%.bbappend
index 9e6fbbd..c7d3bfc 100644
--- a/meta-romulus/recipes-phosphor/sensors/phosphor-hwmon_%.bbappend
+++ b/meta-romulus/recipes-phosphor/sensors/phosphor-hwmon_%.bbappend
@@ -1,4 +1,4 @@
-FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
+FILESEXTRAPATHS_prepend_romulus := "${THISDIR}/${PN}:"
 
 EXTRA_OECONF_append_romulus = " --enable-negative-errno-on-fail"
 
@@ -21,5 +21,5 @@
 OCCITEMS = "${@compose_list(d, 'OCCSFMT', 'OCCS')}"
 
 ENVS = "obmc/hwmon/{0}"
-SYSTEMD_ENVIRONMENT_FILE_${PN} += "${@compose_list(d, 'ENVS', 'ITEMS')}"
-SYSTEMD_ENVIRONMENT_FILE_${PN} += "${@compose_list(d, 'ENVS', 'OCCITEMS')}"
+SYSTEMD_ENVIRONMENT_FILE_${PN}_append_romulus = " ${@compose_list(d, 'ENVS', 'ITEMS')}"
+SYSTEMD_ENVIRONMENT_FILE_${PN}_append_romulus = " ${@compose_list(d, 'ENVS', 'OCCITEMS')}"
diff --git a/meta-romulus/recipes-phosphor/skeleton/obmc-libobmc-intf_%.bbappend b/meta-romulus/recipes-phosphor/skeleton/obmc-libobmc-intf_%.bbappend
index 72d991c..4db6f3a 100644
--- a/meta-romulus/recipes-phosphor/skeleton/obmc-libobmc-intf_%.bbappend
+++ b/meta-romulus/recipes-phosphor/skeleton/obmc-libobmc-intf_%.bbappend
@@ -1 +1 @@
-FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
+FILESEXTRAPATHS_prepend_romulus := "${THISDIR}/${PN}:"