diff --git a/makefiles/npm/README.md b/makefiles/npm/README.md
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+++ b/makefiles/npm/README.md
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+NVM / Node Package Manager
+==========================
+
+Makefiles beneath node-js/ maintain nvm and node package installs.
+
+Directories:
+
+- $(sandbox)/.tmp
+  - $(sandbox)/.tmp/.nvm
+  - $(sandbox)/.tmp/node_modules
+
+| Command | Description |
+| ------- | ----------- |
+| make npm-groovy-lint | Install the groovy linting tool  |
+| make sterile         | Remove .tmp/{.nvm, node_modules} |
+
+nvm/install.sh
+--------------
+
+Install script is downloaded from an external source so makefile targets
+at present are only intended for interactive use.  Install script could
+be checked in and trusted packages proxied but a review of copyrights,
+etc need to happen first.
+
+Node Packages in use:
+---------------------
+
+- npm-groovy-lint
+
+<!---
+
+# -----------------------------------------------------------------------
+# Copyright 2024 Open Networking Foundation Contributors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http:#www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------
+# SPDX-FileCopyrightText: 2024 Open Networking Foundation Contributors
+# SPDX-License-Identifier: Apache-2.0
+# -----------------------------------------------------------------------
+# Intent:
+# -----------------------------------------------------------------------
+
+--->
diff --git a/makefiles/npm/consts.mk b/makefiles/npm/consts.mk
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index 0000000..edf048c
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+++ b/makefiles/npm/consts.mk
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+# -*- makefile -*-
+# -----------------------------------------------------------------------
+# Copyright 2024 Open Networking Foundation (ONF) and the ONF Contributors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------
+# SPDX-FileCopyrightText: 2024 Open Networking Foundation Contributors
+# SPDX-License-Identifier: Apache-2.0
+# -----------------------------------------------------------------------
+
+$(if $(DEBUG),$(warning ENTER))
+
+##-------------------##
+##---]  GLOBALS  [---##
+##-------------------##
+
+nvm-dir-prefix    := $(PWD)/.tmp
+# move to onf-mk-tmp
+
+# [DIRS]
+npm-dir-root      := $(nvm-dir-prefix)/.nvm
+node-modules-root := $(nvm-dir-prefix)/node_modules
+
+export NVM_DIR := $(npm-dir-root)
+nvm-sh         := $(npm-dir-root)/nvm.sh
+
+# Do not quote path
+activate-npm   := source $(nvm-sh)
+
+export NODE_PATH := $(node-modules-root)
+
+
+# npm-install-cmd := npm install --no-package-lock --prefix "$(nvm-dir-prefix)"
+npm-install-cmd := npm install --prefix $(nvm-dir-prefix)
+
+$(if $(DEBUG),$(warning LEAVE))
+
+# [EOF]
diff --git a/makefiles/npm/help.mk b/makefiles/npm/help.mk
new file mode 100644
index 0000000..aa56799
--- /dev/null
+++ b/makefiles/npm/help.mk
@@ -0,0 +1,30 @@
+# -*- makefile -*-
+# -----------------------------------------------------------------------
+# Copyright 2024 Open Networking Foundation (ONF) and the ONF Contributors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------
+# SPDX-FileCopyrightText: 2024 Open Networking Foundation Contributors
+# SPDX-License-Identifier: Apache-2.0
+# -----------------------------------------------------------------------
+
+$(if $(DEBUG),$(warning ENTER))
+
+## -----------------------------------------------------------------------
+## -----------------------------------------------------------------------
+npm-help :
+	@$(MAKE) --no-print-directory nvm-help node-help
+
+$(if $(DEBUG),$(warning LEAVE))
+
+# [EOF]
diff --git a/makefiles/npm/include.mk b/makefiles/npm/include.mk
new file mode 100644
index 0000000..347e837
--- /dev/null
+++ b/makefiles/npm/include.mk
@@ -0,0 +1,32 @@
+# -*- makefile -*-
+# -----------------------------------------------------------------------
+# Copyright 2024 Open Networking Foundation (ONF) and the ONF Contributors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------
+# SPDX-FileCopyrightText: 2024 Open Networking Foundation Contributors
+# SPDX-License-Identifier: Apache-2.0
+# -----------------------------------------------------------------------
+
+$(if $(DEBUG),$(warning ENTER))
+
+include $(onf-mk-dir)/npm/consts.mk
+
+include $(onf-mk-dir)/npm/nvm.mk
+include $(onf-mk-dir)/npm/npm.mk
+
+include $(onf-mk-dir)/npm/node.mk
+
+$(if $(DEBUG),$(warning LEAVE))
+
+# [EOF]
diff --git a/makefiles/npm/node.mk b/makefiles/npm/node.mk
new file mode 100644
index 0000000..4a509eb
--- /dev/null
+++ b/makefiles/npm/node.mk
@@ -0,0 +1,37 @@
+# -*- makefile -*-
+# -----------------------------------------------------------------------
+# Copyright 2024 Open Networking Foundation (ONF) and the ONF Contributors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------
+# SPDX-FileCopyrightText: 2024 Open Networking Foundation Contributors
+# SPDX-License-Identifier: Apache-2.0
+# -----------------------------------------------------------------------
+
+$(if $(DEBUG),$(warning ENTER))
+
+nvm-node-help :
+	@$(activate-npm) && node --help
+
+nvm-node:
+	@$(activate-npm) && which node
+
+## -----------------------------------------------------------------------
+## -----------------------------------------------------------------------
+node-help :
+	@printf '  %-33.33s %s\n' 'nvm-node-help' 'Display node help text'
+	@printf '  %-33.33s %s\n' 'nvm-node'      'Display node command path'
+
+$(if $(DEBUG),$(warning LEAVE))
+
+# [EOF]
diff --git a/makefiles/npm/npm.mk b/makefiles/npm/npm.mk
new file mode 100644
index 0000000..6e18166
--- /dev/null
+++ b/makefiles/npm/npm.mk
@@ -0,0 +1,75 @@
+# -*- makefile -*-
+# -----------------------------------------------------------------------
+# Copyright 2024 Open Networking Foundation (ONF) and the ONF Contributors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------
+# SPDX-FileCopyrightText: 2024 Open Networking Foundation Contributors
+# SPDX-License-Identifier: Apache-2.0
+# -----------------------------------------------------------------------
+
+$(if $(DEBUG),$(warning ENTER))
+
+## -----------------------------------------------------------------------
+## Intent: Helper method, return path to an installed node package command
+## -----------------------------------------------------------------------
+node-get-tool-path = $(node-modules-root)/.bin/$(1)
+
+## -----------------------------------------------------------------------
+## Intent: Define a user function template that will dynamically
+##         generate makfile targets and dependencies used to install
+##         npm/node/node-js pacakges.
+## -----------------------------------------------------------------------
+##   - Dependency driven so packages are only installed when needed.
+##   - Define package name as a target so it can be used as a makefile dependency
+##     [makefile] install : npm-groovy-lint
+##     % make install  -- install tool npm-groovy-lint
+## -----------------------------------------------------------------------
+define npm-install-tmpl
+
+# npm-groovy-lint : $(npm-groovy-lint)
+$(1) : $(node-modules-root)/.bin/$(1)
+
+# bin/npm-groovy-lint : NODE_DIR/nvm.sh
+$(node-modules-root)/.bin/$(1) : $(nvm-sh)
+$(tab)$(activate-npm) && $(npm-install-cmd) "$(1)"
+$(tab)$(activate-npm) && "$(node-modules-root)/.bin/$(1)" --version
+endef
+
+## -----------------------------------------------------------------------
+## Intent: Front end for making a parametierzed template call.
+##   - create named local vars.
+##   - [debug] display target rule generated.
+##   - use $(eval) to create an installer target.
+## -----------------------------------------------------------------------
+## Usage: $(call gen-npm-install,npm-groovy-lint)
+## -----------------------------------------------------------------------
+gen-npm-install=\
+  $(foreach package,$(1),\
+    $(if $(DEBUG),$(info ** $(eval $(call npm-install-tmpl,$(package)))))\
+    $(eval $(call npm-install-tmpl,$(package)))\
+)
+
+## -----------------------------------------------------------------------
+## Intent: Map function used to install a list of node modules
+## -----------------------------------------------------------------------
+## Usage:
+##   packages += npm-groovy-lint
+##   packages += another-npm-package
+##   $(call gen-npm-installs,packages)
+## -----------------------------------------------------------------------
+gen-npm-installs = $(forach pkg,$($(1)),$(call gen-npm-install,$(pkg)))
+
+$(if $(DEBUG),$(warning LEAVE))
+
+# [EOF]
diff --git a/makefiles/npm/nvm.mk b/makefiles/npm/nvm.mk
new file mode 100644
index 0000000..0b72fd7
--- /dev/null
+++ b/makefiles/npm/nvm.mk
@@ -0,0 +1,75 @@
+# -*- makefile -*-
+# -----------------------------------------------------------------------
+# Copyright 2024 Open Networking Foundation (ONF) and the ONF Contributors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------
+# SPDX-FileCopyrightText: 2024 Open Networking Foundation Contributors
+# SPDX-License-Identifier: Apache-2.0
+# -----------------------------------------------------------------------
+
+$(if $(DEBUG),$(warning ENTER))
+
+##-------------------##
+##---]  GLOBALS  [---##
+##-------------------##
+
+nvm-install-sh := https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.7/install.sh
+
+## -----------------------------------------------------------------------
+## Intent: Install the npm pacakge manager
+## -----------------------------------------------------------------------
+nvm-install : $(nvm-sh)
+$(nvm-sh) :
+	$(HIDE)mkdir -p "$(npm-dir-root)"
+	$(HIDE)mkdir -p "$(node-modules-root)"
+
+	@echo
+	@echo "Retrieve $(nvm-install-sh)"
+	$(if $(NVM_DIR),$(null),$(error NVM_DIR= is required))#
+	curl -o- "$(nvm-install-sh)" | bash
+
+	@echo
+	@echo "Install nvm --lts"
+	$(activate-npm) && nvm install --lts
+#	$(activate-npm) && nvm ls-remote
+
+	@echo
+	@echo "Install debug module"
+	$(activate-npm) && $(npm-install-cmd) debug --save
+
+## -----------------------------------------------------------------------
+## Intent: Display command version: nvm, node
+## -----------------------------------------------------------------------
+nvm-ver : nvm-install
+	$(activate-npm) && nvm --version
+	$(activate-npm) && node --version
+
+## -----------------------------------------------------------------------
+## Intent: Remove generated tool and package directories
+## -----------------------------------------------------------------------
+sterile ::
+	$(RM) -r "$(npm-dir-root)"
+	$(RM) -r "$(node-modules-root)"
+	$(RM) "$(npm-dir-root)/package.json"
+	$(RM) "$(npm-dir-root)/package-lock.json"
+
+## -----------------------------------------------------------------------
+## -----------------------------------------------------------------------
+nvm-help :
+	@printf '  %-33.33s %s\n' 'nvm-install' 'Install the nvm package manager'
+	@printf '  %-33.33s %s\n' 'nvm-ver'     'Display tool version: nvm, node'
+
+$(if $(DEBUG),$(warning LEAVE))
+
+# [EOF]