turns out there was a script to convert overrides

it was just not a separate script from the variable renames

layers/meta-opentrons/classes/pipenv_app_bundle.bbclass

@@ -4,7 +4,7 @@
 inherit distutils3-base
 
 DEPENDS += "python3 python3-native python3-pip-native python3-micropipenv-native "
-RDEPENDS_${PN} += " python3 python3-modules"
+RDEPENDS:${PN} += " python3 python3-modules"
 
 # directory for version file output
 SYSROOT_DIRS += "/opentrons_versions"
@@ -132,7 +132,7 @@ do_rewrite_requirements[vardeps] += " PIPENV_APP_BUNDLE_USE_GLOBAL PIPENV_APP_BU
 
 addtask do_rewrite_requirements after do_configure before do_compile
 
-do_configure_prepend () {
+do_configure:prepend () {
    cd ${PIPENV_APP_BUNDLE_PROJECT_ROOT}
    bbplain "Running micropipenv in ${PIPENV_APP_BUNDLE_PROJECT_ROOT}"
    if [[ "${PIPENV_APP_BUNDLE_STRIP_HASHES}" = "no" ]] ; then
@@ -202,4 +202,4 @@ do_install () {
 }
 
 
-FILES_${PN} = "${PIPENV_APP_BUNDLE_DIR} opentrons_versions"
+FILES:${PN} = "${PIPENV_APP_BUNDLE_DIR} opentrons_versions"

layers/meta-opentrons/recipes-bsp/imx-vpu-hantro/imx-vpu-hantro_%.bbappend

@@ -1,4 +1,4 @@
-do_install_append() {
+do_install:append() {
 	# remove /unit_test dir
 	rm -rf ${D}/unit_tests
 }

layers/meta-opentrons/recipes-bsp/tezi-metadata/tezi-metadata_%.bbappend

@@ -1,9 +1,9 @@
-SRC_URI_append = " \
+SRC_URI:append = " \
                file://wrapup-ot3.sh \
 "
 
-FILESEXTRAPATHS_append := ":${THISDIR}/files"
-do_deploy_append () {
+FILESEXTRAPATHS:append := ":${THISDIR}/files"
+do_deploy:append () {
     install -m 644 -T ${WORKDIR}/wrapup-ot3.sh ${DEPLOYDIR}/wrapup.sh
 }
 

layers/meta-opentrons/recipes-bsp/u-boot/u-boot-distro-boot.bbappend

@@ -1,4 +1,4 @@
-FILESEXTRAPATHS_prepend := "${THISDIR}/u-boot-distro-boot:"
+FILESEXTRAPATHS:prepend := "${THISDIR}/u-boot-distro-boot:"
 
-SRC_URI_append = " file://boot.cmd.in"
+SRC_URI:append = " file://boot.cmd.in"
 

layers/meta-opentrons/recipes-bsp/u-boot/u-boot-toradex_%.bbappend

@@ -1,5 +1,5 @@
-FILESEXTRAPATHS_prepend := "${THISDIR}/u-boot-toradex:"
+FILESEXTRAPATHS:prepend := "${THISDIR}/u-boot-toradex:"
 
-SRC_URI_append = " \
+SRC_URI:append = " \
      file://0001-verdin_imx8mm-remove-default-setup-args.patch \
 "

layers/meta-opentrons/recipes-connectivity/networkmanager/networkmanager_%.bbappend

@@ -1,14 +1,14 @@
-FILESEXTRAPATHS_prepend := "${THISDIR}/files:"
+FILESEXTRAPATHS:prepend := "${THISDIR}/files:"
 
 SRC_URI += "file://system-connections-location.conf \
             file://disable-uap0.conf \
 "
 
-FILES_${PN} += "/etc/NetworkManager/conf.d/system-connections-location.conf \
+FILES:${PN} += "/etc/NetworkManager/conf.d/system-connections-location.conf \
                 /etc/NetworkManager/conf.d/disable-uap0.conf \
 "
 
-do_install_append() {
+do_install:append() {
 	install -d ${D}/var/lib/NetworkManager/system-connections
 	install -d ${D}/etc/NetworkManager/conf.d
 	install -m 644 ${WORKDIR}/system-connections-location.conf ${D}/etc/NetworkManager/conf.d/

layers/meta-opentrons/recipes-core/base-files/base-files_%.bbappend

@@ -1,10 +1,10 @@
-FILESEXTRAPATHS_prepend := "${THISDIR}/files:"
+FILESEXTRAPATHS:prepend := "${THISDIR}/files:"
 
 SRC_URI += " \
    file://custom-fstab \
 "
 
-do_install_append(){
+do_install:append(){
    # create userfs dir
    install -d ${D}/userfs
    install -d ${D}/data

layers/meta-opentrons/recipes-core/dropbear/dropbear_%.bbappend

@@ -1,8 +1,8 @@
-FILESEXTRAPATHS_prepend := "${THISDIR}/files:"
+FILESEXTRAPATHS:prepend := "${THISDIR}/files:"
 
 SRC_URI += "file://opentrons-dropbear.default"
 
-do_install_append() {
+do_install:append() {
    # create a symlink to store rsa host keys in read-write /var/lib/dropbear dir.
    install -d ${D}/var/lib/dropbear
    rm -rf ${D}/${sysconfdir}/dropbear

layers/meta-opentrons/recipes-devtools/cmake/cmake-native_3.22.3.bb

@@ -9,8 +9,8 @@ SRC_URI += "file://OEToolchainConfig.cmake \
             file://0005-Disable-use-of-ext2fs-ext2_fs.h-by-cmake-s-internal-.patch \
             "
 
-LICENSE_append = " & BSD-1-Clause & MIT & BSD-2-Clause"
-LIC_FILES_CHKSUM_append = " \
+LICENSE:append = " & BSD-1-Clause & MIT & BSD-2-Clause"
+LIC_FILES_CHKSUM:append = " \
     file://Utilities/cmjsoncpp/LICENSE;md5=fa2a23dd1dc6c139f35105379d76df2b \
     file://Utilities/cmlibarchive/COPYING;md5=d499814247adaee08d88080841cb5665 \
     file://Utilities/cmexpat/COPYING;md5=9e2ce3b3c4c0f2670883a23bbd7c37a9 \

layers/meta-opentrons/recipes-devtools/cmake/cmake_3.22.3.bb

@@ -4,16 +4,16 @@ inherit cmake bash-completion
 
 DEPENDS += "curl expat zlib libarchive xz ncurses bzip2"
 
-SRC_URI_append_class-nativesdk = " \
+SRC_URI:append:class-nativesdk = " \
     file://OEToolchainConfig.cmake \
     file://SDKToolchainConfig.cmake.template \
     file://cmake-setup.py \
     file://environment.d-cmake.sh \
     file://0001-CMakeDetermineSystem-use-oe-environment-vars-to-load.patch \
 "
 
-LICENSE_append = " & BSD-1-Clause & MIT"
-LIC_FILES_CHKSUM_append = " \
+LICENSE:append = " & BSD-1-Clause & MIT"
+LIC_FILES_CHKSUM:append = " \
     file://Utilities/cmjsoncpp/LICENSE;md5=fa2a23dd1dc6c139f35105379d76df2b \
     file://Utilities/cmlibrhash/COPYING;md5=a8c2a557a5c53b1c12cddbee98c099af \
     file://Utilities/cmlibuv/LICENSE;md5=a68902a430e32200263d182d44924d47 \
@@ -45,7 +45,7 @@ EXTRA_OECMAKE=" \
     -DKWSYS_LFS_WORKS=1 \
 "
 
-do_install_append_class-nativesdk() {
+do_install:append:class-nativesdk() {
     mkdir -p ${D}${datadir}/cmake
     install -m 644 ${WORKDIR}/OEToolchainConfig.cmake ${D}${datadir}/cmake/
 
@@ -58,11 +58,11 @@ do_install_append_class-nativesdk() {
     install -m 0755 ${WORKDIR}/cmake-setup.py ${D}${SDKPATHNATIVE}/post-relocate-setup.d/
 }
 
-FILES_${PN}_append_class-nativesdk = " ${SDKPATHNATIVE}"
+FILES:${PN}:append:class-nativesdk = " ${SDKPATHNATIVE}"
 
-FILES_${PN} += "${datadir}/cmake-${CMAKE_MAJOR_VERSION} ${datadir}/cmake ${datadir}/aclocal ${datadir}/emacs ${datadir}/vim"
-FILES_${PN}-doc += "${docdir}/cmake-${CMAKE_MAJOR_VERSION}"
-FILES_${PN}-dev = ""
+FILES:${PN} += "${datadir}/cmake-${CMAKE_MAJOR_VERSION} ${datadir}/cmake ${datadir}/aclocal ${datadir}/emacs ${datadir}/vim"
+FILES:${PN}-doc += "${docdir}/cmake-${CMAKE_MAJOR_VERSION}"
+FILES:${PN}-dev = ""
 
 BBCLASSEXTEND = "nativesdk"
 

layers/meta-opentrons/recipes-devtools/meson/meson_0.55.3.bb

@@ -19,7 +19,7 @@ SRC_URI = "https://github.com/mesonbuild/meson/releases/download/${PV}/meson-${P
 SRC_URI[sha256sum] = "6bed2a25a128bbabe97cf40f63165ebe800e4fcb46db8ab7ef5c2b5789f092a5"
 SRC_URI[md5sum] ="99777acd77838c8669e1421fda8e31c5"
 
-SRC_URI_append_class-native = " \
+SRC_URI:append:class-native = " \
     file://0001-Make-CPU-family-warnings-fatal.patch \
     file://0002-Support-building-allarch-recipes-again.patch \
 "
@@ -29,8 +29,8 @@ UPSTREAM_CHECK_REGEX = "meson-(?P<pver>\d+(\.\d+)+)\.tar"
 
 inherit setuptools3
 
-RDEPENDS_${PN} = "ninja python3-modules python3-pkg-resources"
+RDEPENDS:${PN} = "ninja python3-modules python3-pkg-resources"
 
-FILES_${PN} += "${datadir}/polkit-1"
+FILES:${PN} += "${datadir}/polkit-1"
 
 BBCLASSEXTEND = "native"

layers/meta-opentrons/recipes-devtools/nodejs/nodejs-oe-cache-native_16.14.2.bb

@@ -18,4 +18,4 @@ do_install() {
     install -D -p -m 0755 ${B}/oe-npm-cache ${D}${bindir}/oe-npm-cache
 }
 
-RDEPENDS_${PN} = "nodejs-native"
+RDEPENDS:${PN} = "nodejs-native"

layers/meta-opentrons/recipes-devtools/nodejs/nodejs_16.14.2.bb

@@ -4,18 +4,18 @@ LICENSE = "MIT & ISC & BSD-2-Clause & BSD-3-Clause & Artistic-2.0"
 LIC_FILES_CHKSUM = "file://LICENSE;md5=6ba5b21ac7a505195ca69344d3d7a94a"
 
 DEPENDS = "openssl"
-DEPENDS_append_class-target = " qemu-native"
-DEPENDS_append_class-native = " c-ares-native"
+DEPENDS:append:class-target = " qemu-native"
+DEPENDS:append:class-native = " c-ares-native"
 
 inherit pkgconfig python3native qemu
 
-COMPATIBLE_MACHINE_armv4 = "(!.*armv4).*"
-COMPATIBLE_MACHINE_armv5 = "(!.*armv5).*"
-COMPATIBLE_MACHINE_mips64 = "(!.*mips64).*"
+COMPATIBLE_MACHINE:armv4 = "(!.*armv4).*"
+COMPATIBLE_MACHINE:armv5 = "(!.*armv5).*"
+COMPATIBLE_MACHINE:mips64 = "(!.*mips64).*"
 
-COMPATIBLE_HOST_riscv64 = "null"
-COMPATIBLE_HOST_riscv32 = "null"
-COMPATIBLE_HOST_powerpc = "null"
+COMPATIBLE_HOST:riscv64 = "null"
+COMPATIBLE_HOST:riscv32 = "null"
+COMPATIBLE_HOST:powerpc = "null"
 
 SRC_URI = "http://nodejs.org/dist/v${PV}/node-v${PV}.tar.xz \
            file://0001-Disable-running-gyp-files-for-bundled-deps.patch \
@@ -28,13 +28,13 @@ SRC_URI = "http://nodejs.org/dist/v${PV}/node-v${PV}.tar.xz \
            file://0001-liftoff-Correct-function-signatures.patch \
            file://0001-mips-Use-32bit-cast-for-operand-on-mips32.patch \
            "
-SRC_URI_append_class-target = " \
+SRC_URI:append:class-target = " \
            file://0002-Using-native-binaries.patch \
            "
-SRC_URI_append_toolchain-clang_x86 = " \
+SRC_URI:append:toolchain-clang:x86 = " \
            file://libatomic.patch \
            "
-SRC_URI_append_toolchain-clang_powerpc64le = " \
+SRC_URI:append:toolchain-clang:powerpc64le = " \
            file://0001-ppc64-Do-not-use-mminimal-toc-with-clang.patch \
            "
 SRC_URI[sha256sum] = "e922e215cc68eb5f94d33e8a0b61e2c863b7731cc8600ab955d3822da90ff8d1"
@@ -54,13 +54,13 @@ def map_nodejs_arch(a, d):
     elif re.match('powerpc$', a): return 'ppc'
     return a
 
-ARCHFLAGS_arm = "${@bb.utils.contains('TUNE_FEATURES', 'callconvention-hard', '--with-arm-float-abi=hard', '--with-arm-float-abi=softfp', d)} \
+ARCHFLAGS:arm = "${@bb.utils.contains('TUNE_FEATURES', 'callconvention-hard', '--with-arm-float-abi=hard', '--with-arm-float-abi=softfp', d)} \
                  ${@bb.utils.contains('TUNE_FEATURES', 'neon', '--with-arm-fpu=neon', \
                     bb.utils.contains('TUNE_FEATURES', 'vfpv3d16', '--with-arm-fpu=vfpv3-d16', \
                     bb.utils.contains('TUNE_FEATURES', 'vfpv3', '--with-arm-fpu=vfpv3', \
                     '--with-arm-fpu=vfp', d), d), d)}"
-ARCHFLAGS_append_mips = " --v8-lite-mode"
-ARCHFLAGS_append_mipsel = " --v8-lite-mode"
+ARCHFLAGS:append:mips = " --v8-lite-mode"
+ARCHFLAGS:append:mipsel = " --v8-lite-mode"
 ARCHFLAGS ?= ""
 
 PACKAGECONFIG ??= "ares brotli icu zlib"
@@ -133,7 +133,7 @@ python do_create_v8_qemu_wrapper () {
 do_create_v8_qemu_wrapper[dirs] = "${B}"
 addtask create_v8_qemu_wrapper after do_configure before do_compile
 
-LDFLAGS_append_x86 = " -latomic"
+LDFLAGS:append:x86 = " -latomic"
 
 # Node is way too cool to use proper autotools, so we install two wrappers to forcefully inject proper arch cflags to workaround gypi
 do_configure () {
@@ -169,7 +169,7 @@ BINARIES = " \
     torque \
 "
 
-do_install_append_class-native() {
+do_install:append:class-native() {
     # use node from PATH instead of absolute path to sysroot
     # node-v0.10.25/tools/install.py is using:
     # shebang = os.path.join(node_prefix, 'bin/node')
@@ -194,16 +194,16 @@ do_install_append_class-native() {
     install -m 0755 ${S}/out/Release/node_mksnapshot ${D}${bindir}/node_mksnapshot
 }
 
-do_install_append_class-target() {
+do_install:append:class-target() {
     sed "1s^.*^#\!${bindir}/env node^g" -i ${D}${exec_prefix}/lib/node_modules/npm/bin/npm-cli.js
 }
 
 PACKAGES =+ "${PN}-npm"
-FILES_${PN}-npm = "${nonarch_libdir}/node_modules ${bindir}/npm ${bindir}/npx"
-RDEPENDS_${PN}-npm = "bash python3-core python3-shell python3-datetime \
+FILES:${PN}-npm = "${nonarch_libdir}/node_modules ${bindir}/npm ${bindir}/npx"
+RDEPENDS:${PN}-npm = "bash python3-core python3-shell python3-datetime \
     python3-misc python3-multiprocessing"
 
 PACKAGES =+ "${PN}-systemtap"
-FILES_${PN}-systemtap = "${datadir}/systemtap"
+FILES:${PN}-systemtap = "${datadir}/systemtap"
 
 BBCLASSEXTEND = "native"

layers/meta-opentrons/recipes-devtools/python/python3-pyzmq_19.0.2.bb

@@ -5,19 +5,19 @@ LIC_FILES_CHKSUM = "file://COPYING.BSD;md5=11c65680f637c3df7f58bbc8d133e96e \
                     file://COPYING.LESSER;md5=12c592fa0bcfff3fb0977b066e9cb69e"
 DEPENDS = "zeromq"
 
-FILESEXTRAPATHS_prepend := "${THISDIR}/python-pyzmq:"
+FILESEXTRAPATHS:prepend := "${THISDIR}/python-pyzmq:"
 
 SRC_URI += "file://club-rpath-out.patch"
 SRC_URI[md5sum] = "2833bd5397e4069f63ad1f9f291f1f70"
 SRC_URI[sha256sum] = "13a5638ab24d628a6ade8f794195e1a1acd573496c3b85af2f1183603b7bf5e0"
 
 inherit pypi pkgconfig setuptools3
 
-RDEPENDS_${PN} += "${PYTHON_PN}-multiprocessing"
+RDEPENDS:${PN} += "${PYTHON_PN}-multiprocessing"
 
-FILES_${PN}-dbg =+ "${PYTHON_SITEPACKAGES_DIR}/zmq/backend/cython/.debug"
+FILES:${PN}-dbg =+ "${PYTHON_SITEPACKAGES_DIR}/zmq/backend/cython/.debug"
 
-do_compile_prepend() {
+do_compile:prepend() {
     echo [global] > ${S}/setup.cfg
     echo zmq_prefix = ${STAGING_DIR_HOST} >> ${S}/setup.cfg
     echo have_sys_un_h = True >> ${S}/setup.cfg

layers/meta-opentrons/recipes-devtools/python/python3-setuptools_46.4.0.bb

@@ -6,10 +6,10 @@
 require recipes-devtools/python/python-setuptools.inc
 SRC_URI[md5sum] = "e2c6c3d64b38efe2e81bcd502cf54dcc"
 SRC_URI[sha256sum] = "4334fc63121aafb1cc98fd5ae5dd47ea8ad4a38ad638b47af03a686deb14ef5b"
-SRC_URI_remove_class-native = " file://0001-conditionally-do-not-fetch-code-by-easy_install.patch"
+SRC_URI:remove:class-native = " file://0001-conditionally-do-not-fetch-code-by-easy_install.patch"
 inherit setuptools3
 
 
-do_install_append() {
+do_install:append() {
     mv ${D}${bindir}/easy_install ${D}${bindir}/easy3_install
 }

layers/meta-opentrons/recipes-devtools/python3-pip/python3-pip_%.bbappend

@@ -1,11 +1,11 @@
-FILESEXTRAPATHS_prepend := "${THISDIR}/files:"
+FILESEXTRAPATHS:prepend := "${THISDIR}/files:"
 
-SRC_URI_append += "\
+SRC_URI:append += "\
 	file://pip.conf \
 	file://user-packages.pth \
 	"
 
-do_install_append() {
+do_install:append() {
 	# install pip config file to set the package install dir to a read/write part of the rootfs
 	install -d ${D}/${sysconfdir}
 	install -m 644 ${WORKDIR}/pip.conf ${D}/${sysconfdir}/pip.conf
@@ -15,7 +15,7 @@ do_install_append() {
 	install -m 644 ${WORKDIR}/user-packages.pth ${D}/${libdir}/python3.8/site-packages/
 }
 
-FILES_${PN} += "\
+FILES:${PN} += "\
 	${sysconfdir}/pip.conf \
 	${libdir}/user-packages.pth \
 	"