diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 438d1bee..c810a431 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -135,9 +135,6 @@ jobs:
         container:
           - "arch_node.dockerfile"
           - "fedora_node.dockerfile"
-          - "ubuntu_20.04_node_legacy.dockerfile"
-          - "ubuntu_20.04_node.dockerfile"
-          - "ubuntu_node_legacy.dockerfile"
           - "ubuntu_node.dockerfile"
     steps:
       - uses: actions/checkout@v3
diff --git a/dev/cpp_vcpkg_project b/dev/cpp_vcpkg_project
index c3058919..b10f2e84 160000
--- a/dev/cpp_vcpkg_project
+++ b/dev/cpp_vcpkg_project
@@ -1 +1 @@
-Subproject commit c30589196b2c59a3055dfc7c24244b4a1f48b081
+Subproject commit b10f2e841835b93cee67dff1eb70d6fa5c0ac0cd
diff --git a/dev/docker/arch_node.dockerfile b/dev/docker/arch_node.dockerfile
index 55359cd2..002366c9 100644
--- a/dev/docker/arch_node.dockerfile
+++ b/dev/docker/arch_node.dockerfile
@@ -1,15 +1,9 @@
 ## base image
 FROM archlinux as base
 
-RUN pacman -Syuu --noconfirm
-RUN pacman-db-upgrade
-
-# install nodejs
-RUN pacman -S --noconfirm --needed nodejs npm git
-
-# install pnpm
-#RUN pacman -S --noconfirm --needed pnpm
-RUN npm install -g pnpm
+# install nodejs and pnpm
+RUN pacman -Syuu --noconfirm && pacman-db-upgrade && pacman -S --noconfirm --needed nodejs npm git \
+    && npm install -g pnpm
 
 
 #### Building
diff --git a/dev/docker/fedora_node.dockerfile b/dev/docker/fedora_node.dockerfile
index 0f58e33e..46c0d4d6 100644
--- a/dev/docker/fedora_node.dockerfile
+++ b/dev/docker/fedora_node.dockerfile
@@ -2,10 +2,8 @@
 FROM fedora as base
 
 # nodejs and curl for downloading setup-cpp
-RUN dnf -y install nodejs npm curl git
-
-# install pnpm
-RUN npm install -g pnpm
+RUN dnf -y install nodejs npm curl git && dnf clean all \
+    && npm install -g pnpm
 
 
 #### Building
diff --git a/dev/docker/ubuntu.dockerfile b/dev/docker/ubuntu.dockerfile
index 38356319..5f8acaba 100644
--- a/dev/docker/ubuntu.dockerfile
+++ b/dev/docker/ubuntu.dockerfile
@@ -2,11 +2,10 @@
 FROM ubuntu:22.04 as base
 
 # install setup-cpp
-RUN apt-get update -qq && apt-get install -y --no-install-recommends npm git curl
-RUN npm install -g setup-cpp
-
+RUN apt-get update -qq && apt-get install -y --no-install-recommends npm git curl && rm -rf /var/lib/apt/lists/* \
+    && npm install -g setup-cpp \
 # install llvm, cmake, ninja, and ccache
-RUN setup-cpp --compiler llvm --cmake true --ninja true --ccache true --vcpkg true --task true
+    && setup-cpp --compiler llvm --cmake true --ninja true --ccache true --vcpkg true --task true
 
 CMD ["source", "~/.cpprc"]
 ENTRYPOINT ["/bin/bash"]
diff --git a/dev/docker/ubuntu_20.04_node.dockerfile b/dev/docker/ubuntu_20.04_node.dockerfile
deleted file mode 100644
index 079b806f..00000000
--- a/dev/docker/ubuntu_20.04_node.dockerfile
+++ /dev/null
@@ -1,62 +0,0 @@
-FROM ubuntu:20.04 as base
-
-# set time-zone
-ENV TZ=Canada/Pacific
-RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
-
-# install node with nvm
-RUN apt-get update -qq && apt-get install -y --no-install-recommends git curl wget ca-certificates
-ARG nvm_version="0.39.3"
-ARG node_version="16.20.0"
-RUN mkdir /usr/local/nvm
-ENV NVM_DIR /usr/local/nvm
-ADD https://raw.githubusercontent.com/nvm-sh/nvm/v${nvm_version}/install.sh /nvm_install.sh
-RUN chmod +x /nvm_install.sh && /nvm_install.sh \
-    && . $NVM_DIR/nvm.sh \
-    && nvm install $node_version \
-    && nvm alias default $node_version \
-    && nvm use default
-ENV NODE_PATH $NVM_DIR/v${node_version}/lib/node_modules
-ENV PATH $NVM_DIR/versions/node/v${node_version}/bin:$PATH
-
-# install pnpm
-ENV PNPM_VERSION "7.32.0"
-ADD https://get.pnpm.io/install.sh /tmp/pnpm_install.sh
-RUN chmod +x /tmp/pnpm_install.sh && bash /tmp/pnpm_install.sh
-ENV PNPM_HOME "/root/.local/share/pnpm"
-ENV PATH "${PATH}:${PNPM_HOME}"
-
-
-#### Building
-FROM base AS builder
-## https://github.com/ever0de/pnpm-docker-root-bug#how-to-fix
-WORKDIR /workspace
-COPY . .
-RUN pnpm install
-
-
-#### setup-cpp
-FROM base AS setup-cpp
-# add setup-cpp.js
-COPY --from=builder /workspace/dist/node16 /
-# run installation
-RUN . $NVM_DIR/nvm.sh && node /setup-cpp.js --compiler llvm --cmake true --ninja true --cppcheck true --ccache true --vcpkg true --doxygen true --gcovr true --task true --powershell true
-CMD ["source", "~/.cpprc"]
-ENTRYPOINT ["/bin/bash"]
-
-
-#### Building (example)
-FROM setup-cpp AS example-builder
-COPY ./dev/cpp_vcpkg_project /home/app
-WORKDIR /home/app
-RUN bash -c 'source ~/.cpprc \
-    && task build'
-
-
-#### Running environment
-# use a distroless image or ubuntu:22.04 if you wish
-FROM gcr.io/distroless/cc as runner
-# copy the built binaries and their runtime dependencies
-COPY --from=example-builder /home/app/build/my_exe/Release/ /home/app/
-WORKDIR /home/app/
-ENTRYPOINT ["./my_exe"]
diff --git a/dev/docker/ubuntu_20.04_node_legacy.dockerfile b/dev/docker/ubuntu_20.04_node_legacy.dockerfile
deleted file mode 100644
index f54bd2d2..00000000
--- a/dev/docker/ubuntu_20.04_node_legacy.dockerfile
+++ /dev/null
@@ -1,63 +0,0 @@
-FROM ubuntu:20.04 as base
-
-# set time-zone
-ENV TZ=Canada/Pacific
-RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
-
-# install node with nvm
-RUN apt-get update -qq && apt-get install -y --no-install-recommends git curl wget ca-certificates
-ARG nvm_version="0.39.3"
-ARG node_version="12.22.12"
-RUN mkdir /usr/local/nvm
-ENV NVM_DIR /usr/local/nvm
-ADD https://raw.githubusercontent.com/nvm-sh/nvm/v${nvm_version}/install.sh /nvm_install.sh
-RUN chmod +x /nvm_install.sh && /nvm_install.sh \
-    && . $NVM_DIR/nvm.sh \
-    && nvm install $node_version \
-    && nvm alias default $node_version \
-    && nvm use default
-ENV NODE_PATH $NVM_DIR/v${node_version}/lib/node_modules
-ENV PATH $NVM_DIR/versions/node/v${node_version}/bin:$PATH
-
-# install pnpm
-ENV PNPM_VERSION "6.35.1"
-ADD https://get.pnpm.io/install.sh /tmp/pnpm_install.sh
-RUN chmod +x /tmp/pnpm_install.sh && bash /tmp/pnpm_install.sh
-ENV PNPM_HOME "/root/.local/share/pnpm"
-ENV PATH "${PATH}:${PNPM_HOME}"
-
-
-#### Building
-FROM base AS builder
-## https://github.com/ever0de/pnpm-docker-root-bug#how-to-fix
-WORKDIR /workspace
-COPY . .
-## WARN  "prepare" script of "setup-cpp" inside "/workspace" is skipped as the working directory seems suspicious. To run this lifecycle script anyway, use "--unsafe-perm".
-RUN pnpm install --unsafe-perm
-
-
-#### setup-cpp
-FROM base AS setup-cpp
-# add setup-cpp.js
-COPY --from=builder /workspace/dist/node12 /
-# run installation
-RUN . $NVM_DIR/nvm.sh && node /setup-cpp.js --compiler llvm --cmake true --ninja true --cppcheck true --ccache true --vcpkg true --doxygen true --gcovr true --task true --powershell true
-CMD ["source", "~/.cpprc"]
-ENTRYPOINT ["/bin/bash"]
-
-
-#### Building (example)
-FROM setup-cpp AS example-builder
-COPY ./dev/cpp_vcpkg_project /home/app
-WORKDIR /home/app
-RUN bash -c 'source ~/.cpprc \
-    && task build'
-
-
-#### Running environment
-# use a distroless image or ubuntu:22.04 if you wish
-FROM gcr.io/distroless/cc as runner
-# copy the built binaries and their runtime dependencies
-COPY --from=example-builder /home/app/build/my_exe/Release/ /home/app/
-WORKDIR /home/app/
-ENTRYPOINT ["./my_exe"]
diff --git a/dev/docker/ubuntu_node.dockerfile b/dev/docker/ubuntu_node.dockerfile
index 8d207bc8..abea3290 100644
--- a/dev/docker/ubuntu_node.dockerfile
+++ b/dev/docker/ubuntu_node.dockerfile
@@ -1,11 +1,11 @@
 FROM ubuntu:22.04 AS base
 
 # install node with nvm
-RUN apt-get update -qq && apt-get install -y --no-install-recommends git curl wget ca-certificates
+RUN apt-get update -qq && apt-get install -y --no-install-recommends git curl wget ca-certificates && rm -rf /var/lib/apt/lists/*
 ARG nvm_version="0.39.3"
 ARG node_version="18.15.0"
-RUN mkdir /usr/local/nvm
 ENV NVM_DIR /usr/local/nvm
+RUN mkdir $NVM_DIR
 ADD https://raw.githubusercontent.com/nvm-sh/nvm/v${nvm_version}/install.sh /tmp/nvm_install.sh
 RUN chmod +x /tmp/nvm_install.sh && /tmp/nvm_install.sh \
     && . $NVM_DIR/nvm.sh \
@@ -16,10 +16,7 @@ ENV NODE_PATH $NVM_DIR/v${node_version}/lib/node_modules
 ENV PATH $NVM_DIR/versions/node/v${node_version}/bin:$PATH
 
 # install pnpm
-ADD https://get.pnpm.io/install.sh /tmp/pnpm_install.sh
-RUN chmod +x /tmp/pnpm_install.sh && bash /tmp/pnpm_install.sh
-ENV PNPM_HOME "/root/.local/share/pnpm"
-ENV PATH "${PATH}:${PNPM_HOME}"
+RUN npm install -g pnpm
 
 
 #### Building
@@ -35,7 +32,7 @@ FROM base AS setup-cpp
 # add setup-cpp.js
 COPY --from=builder /workspace/dist/node18 /
 # run installation
-RUN . $NVM_DIR/nvm.sh && node /setup-cpp.js --compiler llvm --cmake true --ninja true --cppcheck true --ccache true --vcpkg true --doxygen true --gcovr true --task true --powershell true
+RUN . "${NVM_DIR}/nvm.sh" && node /setup-cpp.js --compiler llvm --cmake true --ninja true --cppcheck true --ccache true --vcpkg true --doxygen true --gcovr true --task true --powershell true
 CMD ["source", "~/.cpprc"]
 ENTRYPOINT ["/bin/bash"]
 
diff --git a/dev/docker/ubuntu_node_legacy.dockerfile b/dev/docker/ubuntu_node_legacy.dockerfile
deleted file mode 100644
index c7f41f69..00000000
--- a/dev/docker/ubuntu_node_legacy.dockerfile
+++ /dev/null
@@ -1,40 +0,0 @@
-FROM ubuntu:22.04 AS base
-
-RUN apt-get update -qq && apt-get install -y --no-install-recommends nodejs npm
-
-# install pnpm
-RUN npm install -g pnpm@6.35.1
-
-#### Building
-FROM base AS builder
-## https://github.com/ever0de/pnpm-docker-root-bug#how-to-fix
-WORKDIR /workspace
-COPY . .
-RUN pnpm install
-
-
-#### setup-cpp
-FROM base AS setup-cpp
-# add setup-cpp.js
-COPY --from=builder /workspace/dist/node12 /
-# run installation
-RUN . $NVM_DIR/nvm.sh && node /setup-cpp.js --compiler llvm --cmake true --ninja true --cppcheck true --ccache true --vcpkg true --doxygen true --gcovr true --task true --powershell true
-CMD ["source", "~/.cpprc"]
-ENTRYPOINT ["/bin/bash"]
-
-
-#### Building (example)
-FROM setup-cpp AS example-builder
-COPY ./dev/cpp_vcpkg_project /home/app
-WORKDIR /home/app
-RUN bash -c 'source ~/.cpprc \
-    && task build'
-
-
-#### Running environment
-# use a distroless image or ubuntu:22.04 if you wish
-FROM gcr.io/distroless/cc as runner
-# copy the built binaries and their runtime dependencies
-COPY --from=example-builder /home/app/build/my_exe/Release/ /home/app/
-WORKDIR /home/app/
-ENTRYPOINT ["./my_exe"]