diff --git a/.github/ISSUE_TEMPLATE/001_bug_report.yml b/.github/ISSUE_TEMPLATE/001_bug_report.yml
deleted file mode 100644
index ce542917bdfad..0000000000000
--- a/.github/ISSUE_TEMPLATE/001_bug_report.yml
+++ /dev/null
@@ -1,148 +0,0 @@
-# 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.
-#
-name: Bug report
-description: Report a bug to improve NuttX stability
-title: "[BUG] <title>"
-labels: [👀 needs triage, "Type: bug"]
-body:
-  - type: markdown
-    attributes:
-      value: |
-        Hello NuttX Community member! Please keep things tidy by putting your post in the proper place:
-
-        Reporting a bug: use this form.
-        Asking a question or getting help: use the [General Help](https://github.com/apache/nuttx/issues/new?assignees=&labels=question&projects=&template=003_help.yml&title=help%3A+help+title) form or [Mailing list](https://nuttx.apache.org/community/).
-        Requesting a new feature: use the [Feature request](https://github.com/apache/nuttx/issues/new?assignees=&labels=enhancement&projects=&template=002_feature_request.yml) form.
-  - type: textarea
-    attributes:
-      label: "Description / Steps to reproduce the issue"
-      description: "A clear and concise description of what the bug is, and why you consider it to be a bug, and steps for how to reproduce it"
-      placeholder: |
-        A description with steps to reproduce the issue.
-        May include logs, images, or videos.
-        1. Step 1
-        2. Step 2
-    validations:
-      required: true
-
-  - type: markdown
-    attributes:
-      value: |
-        ### Environment
-        Please specify your environment.
-
-  - type: dropdown
-    id: os
-    attributes:
-      label: On which OS does this issue occur?
-      multiple: true
-      options:
-        - "[OS: BSD]"
-        - "[OS: Linux]"
-        - "[OS: Mac]"
-        - "[OS: Windows]"
-        - "[OS: Other]"
-    validations:
-      required: true
-
-  - type: input
-    id: os_version
-    attributes:
-      label: What is the version of your OS?
-      description: Please fill out the distro or OS version from the previous dropdown
-      placeholder: "MacOS 14, Ubuntu 23.10, Windows 10/MSYS_NT-10.0-19045, ecc"
-    validations:
-      required: true
-
-  - type: input
-    attributes:
-      label: NuttX Version
-      placeholder: "e.g., master, 12.5.1, ecc"
-    validations:
-      required: true
-
-  - type: dropdown
-    id: architecture
-    attributes:
-      label: Issue Architecture
-      description: What architecture(s) are you seeing the problem on?
-      multiple: true
-      options:
-        - "[Arch: all]"
-        - "[Arch: arm]"
-        - "[Arch: arm64]"
-        - "[Arch: avr]"
-        - "[Arch: ceva]"
-        - "[Arch: hc]"
-        - "[Arch: mips]"
-        - "[Arch: misoc]"
-        - "[Arch: openrisc]"
-        - "[Arch: renesas]"
-        - "[Arch: risc-v]"
-        - "[Arch: simulator]"
-        - "[Arch: sparc]"
-        - "[Arch: tricore]"
-        - "[Arch: x86]"
-        - "[Arch: x86_64]"
-        - "[Arch: xtensa]"
-        - "[Arch: z16]"
-        - "[Arch: z80]"
-    validations:
-      required: true
-
-  - type: dropdown
-    id: area
-    attributes:
-      label: Issue Area
-      description: What area(s) are you seeing the problem on?
-      multiple: true
-      options:
-        - "[Area: Other]"
-        - "[Area: Applications]"
-        - "[Area: Api]"
-        - "[Area: Board support]"
-        - "[Area: Build System]"
-        - "[Area: Configuring]"
-        - "[Area: Debugging]"
-        - "[Area: Drivers]"
-        - "[Area: File System]"
-        - "[Area: Installing]"
-        - "[Area: Kconfig]"
-        - "[Area: Kernel]"
-        - "[Area: Memory Management]"
-        - "[Area: Native port]"
-        - "[Area: Networking]"
-        - "[Area: OS Components]"
-        - "[Area: Posix]"
-        - "[Area: Sensors]"
-        - "[Area: Specific Peripheral]"
-    validations:
-      required: true
-
-  - type: markdown
-    attributes:
-      value: |
-        ### Before You Submit
-
-        Please verify that you've followed these steps:
-          - Confirm the problem is reproducible on [**master**](https://github.com/apache/nuttx) or [**latest stable**](https://nuttx.apache.org/download) release.
-          - Run `make distclean` when encountering build issues.
-          - Search [existing issues](https://github.com/apache/nuttx/issues) (including [closed](https://github.com/apache/nuttx/issues?q=is%3Aissue+is%3Aclosed))
-          - Read the [FAQ](https://nuttx.apache.org/docs/latest/faq/index.html).
-
-  - type: checkboxes
-    attributes:
-      label: "Verification"
-      options:
-        - label: "I have verified before submitting the report."
-          required: true
diff --git a/.github/ISSUE_TEMPLATE/002_feature_request.yml b/.github/ISSUE_TEMPLATE/002_feature_request.yml
deleted file mode 100644
index 726d9d53301c3..0000000000000
--- a/.github/ISSUE_TEMPLATE/002_feature_request.yml
+++ /dev/null
@@ -1,62 +0,0 @@
-# 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.
-#
-name: Feature request
-description: Request an enhancement for NuttX
-title: "[FEATURE] <title>"
-labels: ["Type: enhancement"]
-body:
-  - type: markdown
-    attributes:
-      value: |
-        Hello NuttX Community member! Please keep things tidy by putting your post in the proper place:
-
-        Requesting a new feature: use this form.
-        Asking a question or getting help: use the [General Help](https://github.com/apache/nuttx/issues/new?assignees=&labels=question&projects=&template=003_help.yml&title=help%3A+help+title) form or [Mailing list](https://nuttx.apache.org/community/).
-        Reporting a bug: use the [Bug report](https://github.com/apache/nuttx/issues/new?assignees=&labels=bug&projects=&template=001_bug_report.yml) form.
-     
-  - type: textarea
-    id: question-description
-    attributes:
-      label: Is your feature request related to a problem? Please describe.
-      description: Please provide a clear and concise description of what the problem is. Add relevant issue link.
-    validations:
-      required: true
-
-  - type: textarea
-    id: solution
-    attributes:
-      label: Describe the solution you'd like
-      description: Please provide a clear and concise description of what you want to happen.
-    validations:
-      required: true
-
-  - type: textarea
-    id: alternatives
-    attributes:
-      label: Describe alternatives you've considered
-      description: Please provide a clear and concise description of any alternative solutions or features you've considered.
-
-  - type: markdown
-    attributes:
-      value: |
-        ### Before You Submit
-
-        Please verify that you've followed these steps:
-          - Search [existing feature requests](https://github.com/apache/nuttx/issues) (including [closed](https://github.com/apache/nuttx/issues?q=is%3Aissue+is%3Aclosed))
-
-  - type: checkboxes
-    attributes:
-      label: "Verification"
-      options:
-        - label: "I have verified before submitting the report."
-          required: true
diff --git a/.github/ISSUE_TEMPLATE/003_help.yml b/.github/ISSUE_TEMPLATE/003_help.yml
deleted file mode 100644
index 03b14a3bb8433..0000000000000
--- a/.github/ISSUE_TEMPLATE/003_help.yml
+++ /dev/null
@@ -1,54 +0,0 @@
-# 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.
-#
-name: General Help
-description: Get general support regarding NuttX
-title: "[HELP] <title>"
-labels: ["Type: question"]
-body:
-  - type: markdown
-    attributes:
-      value: |
-        Hello NuttX Community member! Please keep things tidy by putting your post in the proper place:
-
-        Asking a question or getting help: use this form or [Mailing list](https://nuttx.apache.org/community/).
-        Reporting a bug: use the [Bug report](https://github.com/apache/nuttx/issues/new?assignees=&labels=bug&projects=&template=001_bug_report.yml) form.
-        Requesting a new feature: use the [Feature request](https://github.com/apache/nuttx/issues/new?assignees=&labels=enhancement&projects=&template=002_feature_request.yml) form
-
-  - type: markdown
-    attributes:
-      value: |
-        ### Whether you're a beginner or an experienced developer, NuttX Help is here to assist you with all your NuttX questions and concerns.
-
-  - type: textarea
-    id: question-description
-    attributes:
-      label: Description
-      description: Explain the background or context of your question. This helps others understand your problem or inquiry better.
-    validations:
-      required: true
-
-  - type: markdown
-    attributes:
-      value: |
-        ### Before You Submit
-
-        Please verify that you've followed these steps:
-          - I have searched [NuttX Documentation](https://nuttx.apache.org/docs/latest/) and didn't find an answer to my question.
-          - Search [existing issues](https://github.com/apache/nuttx/issues) (including [closed](https://github.com/apache/nuttx/issues?q=is%3Aissue+is%3Aclosed))
-
-  - type: checkboxes
-    attributes:
-      label: "Verification"
-      options:
-        - label: "I have verified before submitting the report."
-          required: true
diff --git a/.github/ISSUE_TEMPLATE/config.yml b/.github/ISSUE_TEMPLATE/config.yml
deleted file mode 100644
index 3ba13e0cec6cb..0000000000000
--- a/.github/ISSUE_TEMPLATE/config.yml
+++ /dev/null
@@ -1 +0,0 @@
-blank_issues_enabled: false
diff --git a/.github/labeler.yml b/.github/labeler.yml
deleted file mode 100644
index a13f0c59ccb68..0000000000000
--- a/.github/labeler.yml
+++ /dev/null
@@ -1,200 +0,0 @@
-# SPDX-License-Identifier: Apache-2.0
-#
-# Licensed to the Apache Software Foundation (ASF) under one
-# or more contributor license agreements.  See the NOTICE file
-# distributed with this work for additional information
-# regarding copyright ownership.  The ASF licenses this file
-# to you 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.
-#
-
-# add arch labels
-
-"Arch: arm":
-  - changed-files:
-      - any-glob-to-any-file: 'arch/arm/**'
-
-"Arch: arm64":
-  - changed-files:
-      - any-glob-to-any-file: 'arch/arm64/**'
-
-"Arch: avr":
-  - changed-files:
-      - any-glob-to-any-file: 'arch/avr/**'
-
-"Arch: ceva":
-  - changed-files:
-      - any-glob-to-any-file: 'arch/ceva/**'
-
-"Arch: hc":
-  - changed-files:
-      - any-glob-to-any-file: 'arch/hc/**'
-
-"Arch: mips":
-  - changed-files:
-      - any-glob-to-any-file: 'arch/mips/**'
-
-"Arch: openrisc":
-  - changed-files:
-      - any-glob-to-any-file: 'arch/or1k/**'
-
-"Arch: renesas":
-  - changed-files:
-      - any-glob-to-any-file: 'arch/renesas/**'
-
-"Arch: risc-v":
-  - changed-files:
-      - any-glob-to-any-file: 'arch/risc-v/**'
-
-"Arch: simulator":
-  - changed-files:
-      - any-glob-to-any-file: 'arch/sim/**'
-
-"Arch: sparc":
-  - changed-files:
-      - any-glob-to-any-file: 'arch/sparc/**'
-
-"Arch: tricore":
-  - changed-files:
-      - any-glob-to-any-file: 'arch/tricore/**'
-
-"Arch: x86":
-  - changed-files:
-      - any-glob-to-any-file: 'arch/x86/**'
-
-"Arch: x86_64":
-  - changed-files:
-      - any-glob-to-any-file: 'arch/x86_64/**'
-
-"Arch: xtensa":
-  - changed-files:
-      - any-glob-to-any-file: 'arch/xtensa/**'
-
-"Arch: z16":
-  - changed-files:
-      - any-glob-to-any-file: 'arch/z16/**'
-
-"Arch: z80":
-  - changed-files:
-      - any-glob-to-any-file: 'arch/z80/**'
-
-# add area labels
-
-"Area: Audio":
-  - changed-files:
-      - any-glob-to-any-file: 'audio/**'
-      - any-glob-to-any-file: 'drivers/audio/**'
-      - any-glob-to-any-file: 'include/nuttx/audio/**'
-
-"Area: Binfmt":
-  - changed-files:
-      - any-glob-to-any-file: 'binfmt/**'
-      - any-glob-to-any-file: 'include/nuttx/binfmt/**'
-
-"Area: Bluetooth":
-  - changed-files:
-      - any-glob-to-any-file: 'wireless/bluetooth/**'
-      - any-glob-to-any-file: 'nuttx/drivers/wireless/bluetooth/**'
-      - any-glob-to-any-file: 'include/nuttx/wireless/bluetooth/**'
-
-"Area: Board support":
-  - changed-files:
-      - any-glob-to-any-file: 'boards/**'
-
-"Area: Build system":
-  - changed-files:
-      - any-glob-to-any-file: 'Makefile'
-      - any-glob-to-any-file: 'CMakeLists.txt'
-      - any-glob-to-any-file: 'cmake/**'
-      - any-glob-to-any-file: 'tools/*.mk'
-
-"Area: CI":
-  - changed-files:
-      - any-glob-to-any-file: '.github/**'
-      - any-glob-to-any-file: 'tools/ci/**'
-
-"Area: Crypto":
-  - changed-files:
-      - any-glob-to-any-file: 'crypto/**'
-      - any-glob-to-any-file: 'drivers/crypto/**'
-      - any-glob-to-any-file: 'include/crypto/**'
-      - any-glob-to-any-file: 'include/nuttx/crypto/**'
-
-"Area: Documentation":
-  - changed-files:
-      - any-glob-to-any-file: 'Documentation/**'
-      - any-glob-to-any-file: 'README.md'
-      - any-glob-to-any-file: 'ReleaseNotes'
-      - any-glob-to-any-file: 'CONTRIBUTING.md'
-      - any-glob-to-any-file: 'INVIOLABLES.md'
-
-"Area: File System":
-  - changed-files:
-      - any-glob-to-any-file: 'fs/**'
-      - any-glob-to-any-file: 'include/nuttx/fs/**'
-
-"Area: Github Actions":
-  - changed-files:
-      - any-glob-to-any-file: '.github/actions/**'
-
-"Area: Graphics":
-  - changed-files:
-      - any-glob-to-any-file: 'graphics/**'
-      - any-glob-to-any-file: 'drivers/lcd/**'
-      - any-glob-to-any-file: 'include/nuttx/lcd/**'
-
-"Area: Memory Management":
-  - changed-files:
-      - any-glob-to-any-file: 'mm/**'
-      - any-glob-to-any-file: 'include/nuttx/mm/**'
-
-"Area: Networking":
-  - changed-files:
-      - any-glob-to-any-file: 'net/**'
-      - any-glob-to-any-file: 'drivers/net/**'
-      - any-glob-to-any-file: 'include/nuttx/net/**'
-
-"Area: OS Components":
-  - changed-files:
-      - any-glob-to-any-file: 'sched/**'
-      - any-glob-to-any-file: 'syscall/**'
-      - any-glob-to-any-file: 'libs/**'
-
-"Area: PCI":
-  - changed-files:
-      - any-glob-to-any-file: 'drivers/pci/**'
-      - any-glob-to-any-file: 'include/nuttx/pci/**'
-
-"Area: Sensors":
-  - changed-files:
-      - any-glob-to-any-file: 'drivers/sensors/**'
-      - any-glob-to-any-file: 'include/nuttx/sensors/**'
-      - any-glob-to-any-file: 'include/nuttx/uorb.h'
-
-"Area: Tooling":
-  - changed-files:
-      - any-glob-to-any-file: 'tools/**'
-
-"Area: USB":
-  - changed-files:
-      - any-glob-to-any-file: 'drivers/usbdev/**'
-      - any-glob-to-any-file: 'drivers/usbhost/**'
-      - any-glob-to-any-file: 'drivers/usbmisc/**'
-      - any-glob-to-any-file: 'drivers/usbmonitor/**'
-      - any-glob-to-any-file: 'include/nuttx/usb/**'
-
-"Area: Video":
-  - changed-files:
-      - any-glob-to-any-file: 'video/**'
-      - any-glob-to-any-file: 'drivers/video/**'
-      - any-glob-to-any-file: 'include/nuttx/video/**'
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 38dc88c01d46e..475c529275ecf 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -13,25 +13,13 @@
 name: Build
 
 on:
-  pull_request:
-    paths-ignore:
-      - 'Documentation/**'
-      - 'tools/ci/docker/linux/**'
   push:
-    paths-ignore:
-      - 'Documentation/**'
-    branches:
-      - master
-      - 'releases/*'
-    tags:
+    branches: [master]
+  pull_request:
 
 permissions:
   contents: read
 
-concurrency:
-  group: build-${{ github.event.pull_request.number || github.ref }}
-  cancel-in-progress: true
-
 jobs:
   Fetch-Source:
     runs-on: ubuntu-latest
@@ -73,7 +61,7 @@ jobs:
                 APPS_REF=$REF_NAME
                 ;;
 
-              "tiiuae/incubator-nuttx-apps" )
+              "tiiuae/nuttx-apps" )
                 # APPS
                 OS_REF=$REF_NAME
                 echo "Triggered by change in APPS"
@@ -101,7 +89,7 @@ jobs:
       - name: Checkout apps repo
         uses: actions/checkout@v4
         with:
-          repository: tiiuae/incubator-nuttx-apps
+          repository: tiiuae/nuttx-apps
           ref: ${{ steps.gittargets.outputs.apps_ref }}
           path: sources/apps
           fetch-depth: 1
@@ -115,157 +103,14 @@ jobs:
           name: source-bundle
           path: sources.tar.gz
 
-  Linux:
-    needs: Fetch-Source
+  Build:
     runs-on: ubuntu-latest
-    env:
-      DOCKER_BUILDKIT: 1
-
-    strategy:
-      max-parallel: 12
-      matrix:
-        boards: [arm-12, risc-v]
-
-    steps:
-      - name: Download Source Artifact
-        uses: actions/download-artifact@v4
-        with:
-          name: source-bundle
-          path: .
-
-      - name: Extract sources
-        run: tar zxf sources.tar.gz
-
-      - name: Docker Login
-        uses: docker/login-action@v3
-        with:
-          registry: ghcr.io
-          username: ${{ github.actor }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Docker Pull
-        run: docker pull ghcr.io/apache/nuttx/apache-nuttx-ci-linux
-
-      - name: Export NuttX Repo SHA
-        run: echo "nuttx_sha=`git -C sources/nuttx rev-parse HEAD`" >> $GITHUB_ENV
-
-      - name: Run builds
-        uses: ./sources/nuttx/.github/actions/ci-container
-        env:
-          BLOBDIR: /tools/blobs
-        with:
-          run: |
-            echo "::add-matcher::sources/nuttx/.github/gcc.json"
-            export ARTIFACTDIR=`pwd`/buildartifacts
-            git config --global --add safe.directory /github/workspace/sources/nuttx
-            git config --global --add safe.directory /github/workspace/sources/apps
-            cd sources/nuttx/tools/ci
-            if [ "X${{matrix.boards}}" = "Xcodechecker" ]; then
-                ./cibuild.sh -c -A -N -R --codechecker testlist/${{matrix.boards}}.dat
-            else
-                ./cibuild.sh -c -A -N -R -S testlist/${{matrix.boards}}.dat
-            fi
-
-      - uses: actions/upload-artifact@v4
-        if: ${{ always() }}
-        with:
-          name: linux-${{matrix.boards}}-builds
-          path: buildartifacts/
-        continue-on-error: true
-
-  macOS:
-    if: ${{ false }}  # disable for now
-    permissions:
-      contents: none
-    runs-on: macos-13
     needs: Fetch-Source
-    strategy:
-      max-parallel: 2
-      matrix:
-        boards: [macos, sim-01, sim-02]
-    steps:
-      - name: Download Source Artifact
-        uses: actions/download-artifact@v4
-        with:
-          name: source-bundle
-          path: .
-
-      - name: Extract sources
-        run: tar zxf sources.tar.gz
-
-      - name: Restore Tools Cache
-        id: cache-tools
-        uses: actions/cache@v4
-        env:
-          cache-name: ${{ runner.os }}-cache-tools
-        with:
-          path: ./sources/tools
-          key: ${{ runner.os }}-tools-${{ hashFiles('./sources/nuttx/tools/ci/platforms/darwin.sh') }}
-
-      - name: Export NuttX Repo SHA
-        run: echo "nuttx_sha=`git -C sources/nuttx rev-parse HEAD`" >> $GITHUB_ENV
-
-      # Released version of Cython has issues with Python 11. Set runner to use Python 3.10
-      # https://github.com/cython/cython/issues/4500
-      - uses: actions/setup-python@v5
-        with:
-          python-version: '3.10'
-      - name: Run Builds
-        run: |
-          echo "::add-matcher::sources/nuttx/.github/gcc.json"
-          export ARTIFACTDIR=`pwd`/buildartifacts
-          cd sources/nuttx/tools/ci
-          ./cibuild.sh -i -c -A -R testlist/${{matrix.boards}}.dat
-
-      - uses: actions/upload-artifact@v4
-        with:
-          name: macos-${{matrix.boards}}-builds
-          path: buildartifacts/
-        continue-on-error: true
-
-  msys2:
-    needs: Fetch-Source
-    runs-on: windows-latest
     strategy:
       fail-fast: false
-      max-parallel: 1
       matrix:
-        boards: [msys2]
-
-    defaults:
-      run:
-        shell: msys2 {0}
+        boards: [ssrc-arm, ssrc-riscv]
     steps:
-      - uses: actions/checkout@v4
-      - uses: msys2/setup-msys2@v2
-        with:
-          msystem: MSYS
-          update: false
-          install: >-
-            base-devel
-            gcc
-            gperf
-            automake
-            autoconf
-            git
-            python3
-            ncurses-devel
-            unzip
-            zip
-            tio
-            zlib-devel
-            cmake
-            ninja
-            python-pip 
-            vim
-
-      - name: pip3 install
-        run: |
-          python3 -m venv --system-site-packages /usr/local
-          pip3 install --root-user-action=ignore --no-cache-dir pyelftools cxxfilt kconfiglib
-
-      - run: git config --global core.autocrlf false
-
       - name: Download Source Artifact
         uses: actions/download-artifact@v4
         with:
@@ -275,20 +120,11 @@ jobs:
       - name: Extract sources
         run: tar zxf sources.tar.gz
 
-      - name: Export NuttX Repo SHA
-        run: echo "nuttx_sha=`git -C sources/nuttx rev-parse HEAD`" >> $GITHUB_ENV
-
-      - name: Run Builds
+      # cibuild.sh -i installs the tools for us
+      - name: Run builds
         run: |
           echo "::add-matcher::sources/nuttx/.github/gcc.json"
           export ARTIFACTDIR=`pwd`/buildartifacts
-          git config --global --add safe.directory /github/workspace/sources/nuttx
-          git config --global --add safe.directory /github/workspace/sources/apps
           cd sources/nuttx/tools/ci
-          ./cibuild.sh -g -i -A -C -N -R testlist/${{matrix.boards}}.dat
+          ./cibuild.sh -i -c -A -R testlist/${{matrix.boards}}.dat
 
-      - uses: actions/upload-artifact@v4
-        with:
-          name: msys2-${{matrix.boards}}-builds
-          path: buildartifacts/
-        continue-on-error: true
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index abcd35cf08c12..ce1084293ba48 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -38,7 +38,7 @@ jobs:
       - name: Checkout apps
         uses: actions/checkout@v4
         with:
-          repository: 'tiiuae/incubator-nuttx-apps.git'
+          repository: 'tiiuae/nuttx-apps.git'
           path: 'apps'
           ref: 'master'
       - name: Install tools
diff --git a/.github/workflows/docker_linux.yml b/.github/workflows/docker_linux.yml
index c10c3c70e75fb..7fc5b8ae8c595 100644
--- a/.github/workflows/docker_linux.yml
+++ b/.github/workflows/docker_linux.yml
@@ -13,7 +13,6 @@
 name: Docker-Linux
 
 on:
-  workflow_dispatch:
   push:
     # Publish `master` as Docker `latest` image.
     branches:
diff --git a/.github/workflows/issue_labeler.yml b/.github/workflows/issue_labeler.yml
deleted file mode 100644
index 7241b30c9f851..0000000000000
--- a/.github/workflows/issue_labeler.yml
+++ /dev/null
@@ -1,54 +0,0 @@
-# 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.
-#
-name: Issue Labeler
-
-on:
-  issues:
-    types: [opened]
-
-jobs:
-  label:
-    runs-on: ubuntu-latest
-    permissions:
-      issues: write
-    steps:
-      - name: Add labels issues automatically based on their body.
-        uses: actions/github-script@v7
-        with:
-          script: |
-            const body = context.payload.issue.body;
-            const bodySplit = body.split(/\[|\]/).map(e => e.toLowerCase());
-            const oskeywords = ['os: other', 'os: bsd', 'os: Linux', 'os: mac', 'os: windows'];
-            const archkeywords1 = ['arch: all', 'arch: arm', 'arch: arm64', 'arch: avr', 'arch: ceva'];
-            const archkeywords2 = ['arch: hc', 'arch: mips', 'arch: misoc', 'arch: openrisc', 'arch:renesas'];
-            const archkeywords3 = ['arch: risc-v', 'arch: simulator', 'arch: sparc', 'arch: tricore'];
-            const archkeywords4 = ['arch: x86', 'arch: x86_64', 'arch: xtensa', 'arch: z16', 'arch: z80', 'arch:renesas'];
-            const areakeywords1 = ['area: applications', 'area: api', 'area: board support', 'area: build system'];
-            const areakeywords2 = ['area: configuring', 'area: debugging', 'area: drivers', 'area: file system', 'area: installing', 'area: kconfig'];
-            const areakeywords3 = ['area: kernel', 'area: memory management', 'area: native port', 'area: networking'];
-            const areakeywords4 = ['area: os components', 'area: posix', 'area: sensors', 'area: specific peripheral'];
-            const keywords = [...oskeywords, ...archkeywords1, ...archkeywords2, ...archkeywords3, ...archkeywords4, ...areakeywords1, ...areakeywords2, ...areakeywords3, ...areakeywords4];
-            var keywordsfound = new Set();
-            for (const keyword of keywords) {
-              if (bodySplit.includes(keyword)) {
-                keywordsfound.add(keyword)
-              }
-            }
-            if (keywordsfound.size !== 0) {
-              github.rest.issues.addLabels({
-                owner: context.repo.owner,
-                repo: context.repo.repo,
-                issue_number: context.issue.number,
-                labels: Array.from(keywordsfound)
-              })
-            }
diff --git a/.github/workflows/labeler.yml b/.github/workflows/labeler.yml
deleted file mode 100644
index 22250d40a53e1..0000000000000
--- a/.github/workflows/labeler.yml
+++ /dev/null
@@ -1,45 +0,0 @@
-# SPDX-License-Identifier: Apache-2.0
-#
-# 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.
-#
-name: "Pull Request Labeler"
-on:
-  - pull_request_target
-
-jobs:
-  labeler:
-    permissions:
-      contents: read
-      pull-requests: write
-      issues: write
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-
-      - name: Assign labels based on paths
-        uses: actions/labeler@main
-        with:
-          repo-token: "${{ secrets.GITHUB_TOKEN }}"
-          sync-labels: true
-
-      - name: Assign labels based on the PR's size
-        uses: codelytv/pr-size-labeler@v1.10.1
-        with:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          ignore_file_deletions: true
-          xs_label: 'Size: XS'
-          s_label: 'Size: S'
-          m_label: 'Size: M'
-          l_label: 'Size: L'
-          xl_label: 'Size: XL'
diff --git a/nxstyle b/nxstyle
new file mode 100755
index 0000000000000..5c65cced4776f
Binary files /dev/null and b/nxstyle differ
diff --git a/tools/ci/cibuild.sh b/tools/ci/cibuild.sh
index 4c8ca44797bcd..980628c1ca7f5 100755
--- a/tools/ci/cibuild.sh
+++ b/tools/ci/cibuild.sh
@@ -1,94 +1,509 @@
 #!/usr/bin/env bash
-############################################################################
-# tools/ci/cibuild.sh
-#
-# SPDX-License-Identifier: Apache-2.0
-#
-# Licensed to the Apache Software Foundation (ASF) under one or more
-# contributor license agreements.  See the NOTICE file distributed with
-# this work for additional information regarding copyright ownership.  The
-# ASF licenses this file to you 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
+
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you 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
+#  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
+# 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.
-#
-############################################################################
+
+# Prerequisites for macOS
+#  - Xcode (cc, etc)
+#  - homebrew
+#  - autoconf
+#  - wget
+
 set -e
 set -o xtrace
 
+WD=$(cd "$(dirname "$0")" && pwd)
+WORKSPACE=$(cd "${WD}"/../../../ && pwd -P)
+nuttx=${WORKSPACE}/nuttx
+apps=${WORKSPACE}/apps
+tools=${WORKSPACE}/tools
+os=$(uname -s)
+EXTRA_PATH=
 
-CID=$(cd "$(dirname "$0")" && pwd)
-CIWORKSPACE=$(cd "${CID}"/../../../ && pwd -P)
-CIPLAT=${CIWORKSPACE}/nuttx/tools/ci/platforms
-nuttx=${CIWORKSPACE}/nuttx
-apps=${CIWORKSPACE}/apps
+function add_path {
+  PATH=$1:${PATH}
+  EXTRA_PATH=$1:${EXTRA_PATH}
+}
 
-os=$(uname -s)
-if [ -f /etc/os-release ]; then
-  osname=$(grep "^ID=" /etc/os-release | cut -d'=' -f2 | tr -d '"')
-else
-  osname=${os}
-fi
+function arm-clang-toolchain {
+  add_path "${tools}"/clang-arm-none-eabi/bin
 
-function to_do {
-  echo ""
-  echo "NuttX TODO: $1"
-  echo "The $1 platform does not appear to have been added to this project."
-  echo ""
-  exit 1
+  if [ ! -f "${tools}/clang-arm-none-eabi/bin/clang" ]; then
+    local flavor
+    case ${os} in
+      Linux)
+        flavor=Linux
+        ;;
+    esac
+    cd "${tools}"
+    curl -O -L -s https://github.com/ARM-software/LLVM-embedded-toolchain-for-Arm/releases/download/release-17.0.1/LLVMEmbeddedToolchainForArm-17.0.1-${flavor}-x86_64.tar.xz
+    xz -d LLVMEmbeddedToolchainForArm-17.0.1-${flavor}.tar.xz
+    mv LLVMEmbeddedToolchainForArm-17.0.1 clang-arm-none-eabi
+    cp /usr/bin/clang-extdef-mapping-10 clang-arm-none-eabi/bin/clang-extdef-mapping
+    rm LLVMEmbeddedToolchainForArm-17.0.1-${flavor}.tar.xz
+  fi
+
+  command clang --version
 }
 
-function install_tools {
-  export NUTTXTOOLS=${CIWORKSPACE}/tools
-  mkdir -p "${NUTTXTOOLS}"
+function arm-gcc-toolchain {
+  add_path "${tools}"/gcc-arm-none-eabi/bin
 
-  case ${osname} in
-    alpine)
-      to_do "alpine"
-      ;;
-    arch)
-      to_do "arch"
-      ;;
-    CYGWIN*)
-      to_do "CYGWIN"
-      ;;
-    debian)
-      to_do "debian"
-      ;;
-    fedora)
-      to_do "fedora"
-      ;;
-    freebsd)
-      to_do "freebsd"
-      ;;
+  if [ ! -f "${tools}/gcc-arm-none-eabi/bin/arm-none-eabi-gcc" ]; then
+    local flavor
+    case ${os} in
+      Darwin)
+        flavor=-darwin
+        ;;
+      Linux)
+        flavor=
+        ;;
+    esac
+    cd "${tools}"
+    wget --quiet https://developer.arm.com/-/media/Files/downloads/gnu/13.2.Rel1/binrel/arm-gnu-toolchain-13.2.Rel1${flavor}-x86_64-arm-none-eabi.tar.xz
+    xz -d arm-gnu-toolchain-13.2.Rel1${flavor}-x86_64-arm-none-eabi.tar.xz
+    tar xf arm-gnu-toolchain-13.2.Rel1${flavor}-x86_64-arm-none-eabi.tar
+    mv arm-gnu-toolchain-13.2.Rel1${flavor}-x86_64-arm-none-eabi gcc-arm-none-eabi
+    rm arm-gnu-toolchain-13.2.Rel1${flavor}-x86_64-arm-none-eabi.tar
+  fi
+
+  command arm-none-eabi-gcc --version
+}
+
+function arm64-gcc-toolchain {
+  add_path "${tools}"/gcc-aarch64-none-elf/bin
+
+  if [ ! -f "${tools}/gcc-aarch64-none-elf/bin/aarch64-none-elf-gcc" ]; then
+    local flavor
+    case ${os} in
+      Darwin)
+        flavor=-darwin
+        ;;
+      Linux)
+        flavor=
+        ;;
+    esac
+    cd "${tools}"
+    wget --quiet https://developer.arm.com/-/media/Files/downloads/gnu/13.2.Rel1/binrel/arm-gnu-toolchain-13.2.Rel1${flavor}-x86_64-aarch64-none-elf.tar.xz
+    xz -d arm-gnu-toolchain-13.2.Rel1${flavor}-x86_64-aarch64-none-elf.tar.xz
+    tar xf arm-gnu-toolchain-13.2.Rel1${flavor}-x86_64-aarch64-none-elf.tar
+    mv arm-gnu-toolchain-13.2.Rel1${flavor}-x86_64-aarch64-none-elf gcc-aarch64-none-elf
+    rm arm-gnu-toolchain-13.2.Rel1${flavor}-x86_64-aarch64-none-elf.tar
+  fi
+
+  command aarch64-none-elf-gcc --version
+}
+
+function avr-gcc-toolchain {
+  if ! type avr-gcc &> /dev/null; then
+    case ${os} in
+      Darwin)
+        brew tap osx-cross/avr
+        brew install avr-gcc
+        ;;
+      Linux)
+        sudo apt-get install -y avr-libc gcc-avr
+        ;;
+    esac
+  fi
+
+  command avr-gcc --version
+}
+
+function binutils {
+  mkdir -p "${tools}"/bintools/bin
+  add_path "${tools}"/bintools/bin
+
+  if ! type objcopy &> /dev/null; then
+    case ${os} in
+      Darwin)
+        brew install binutils
+        # It is possible we cached prebuilt but did brew install so recreate
+        # symlink if it exists
+        rm -f "${tools}"/bintools/bin/objcopy
+        ln -s /usr/local/opt/binutils/bin/objcopy "${tools}"/bintools/bin/objcopy
+        ;;
+    esac
+  fi
+
+  command objcopy --version
+}
+
+function bloaty {
+  add_path "${tools}"/bloaty/bin
+
+  if [ ! -f "${tools}/bloaty/bin/bloaty" ]; then
+    git clone --branch main https://github.com/google/bloaty "${tools}"/bloaty-src
+    cd "${tools}"/bloaty-src
+    # Due to issues with latest MacOS versions use pinned commit.
+    # https://github.com/google/bloaty/pull/326
+    git checkout 52948c107c8f81045e7f9223ec02706b19cfa882
+    mkdir -p "${tools}"/bloaty
+    cmake -D BLOATY_PREFER_SYSTEM_CAPSTONE=NO -DCMAKE_SYSTEM_PREFIX_PATH="${tools}"/bloaty
+    make install -j 6
+    cd "${tools}"
+    rm -rf bloaty-src
+  fi
+
+  command bloaty --version
+}
+
+function c-cache {
+  add_path "${tools}"/ccache/bin
+
+  if ! type ccache &> /dev/null; then
+    case ${os} in
+      Darwin)
+        brew install ccache
+        ;;
+      Linux)
+        cd "${tools}";
+        wget https://github.com/ccache/ccache/releases/download/v3.7.7/ccache-3.7.7.tar.gz
+        tar zxf ccache-3.7.7.tar.gz
+        cd ccache-3.7.7; ./configure --prefix="${tools}"/ccache; make; make install
+        cd "${tools}"; rm -rf ccache-3.7.7; rm ccache-3.7.7.tar.gz
+        ;;
+    esac
+  fi
+
+  command ccache --version
+}
+
+function clang-tidy {
+  if ! type clang-tidy &> /dev/null; then
+    case ${os} in
+      Linux)
+        sudo apt-get install -y clang clang-tidy
+        ;;
+    esac
+  fi
+
+  command clang-tidy --version
+}
+
+function elf-toolchain {
+  if ! type x86_64-elf-gcc &> /dev/null; then
+    case ${os} in
+      Darwin)
+        brew install x86_64-elf-gcc
+        ;;
+    esac
+  fi
+
+  command x86_64-elf-gcc --version
+}
+
+function util-linux {
+  if ! type flock &> /dev/null; then
+    case ${os} in
+      Darwin)
+        brew tap discoteq/discoteq
+        brew install flock
+        ;;
+      Linux)
+        sudo apt-get install -y util-linux
+        ;;
+    esac
+  fi
+
+  command flock --version
+}
+
+function gen-romfs {
+  if ! type genromfs &> /dev/null; then
+    case ${os} in
+      Darwin)
+        brew tap PX4/px4
+        brew install genromfs
+        ;;
+      Linux)
+        sudo apt-get install -y genromfs
+        ;;
+    esac
+  fi
+}
+
+function gperf {
+  add_path "${tools}"/gperf/bin
+
+  if [ ! -f "${tools}/gperf/bin/gperf" ]; then
+    cd "${tools}"
+    wget --quiet http://ftp.gnu.org/pub/gnu/gperf/gperf-3.1.tar.gz
+    tar zxf gperf-3.1.tar.gz
+    cd "${tools}"/gperf-3.1
+    ./configure --prefix="${tools}"/gperf; make; make install
+    cd "${tools}"
+    rm -rf gperf-3.1; rm gperf-3.1.tar.gz
+  fi
+
+  command gperf --version
+}
+
+function kconfig-frontends {
+  add_path "${tools}"/kconfig-frontends/bin
+
+  if [ ! -f "${tools}/kconfig-frontends/bin/kconfig-conf" ]; then
+    git clone https://bitbucket.org/nuttx/tools.git "${tools}"/nuttx-tools
+    cd "${tools}"/nuttx-tools/kconfig-frontends
+    ./configure --prefix="${tools}"/kconfig-frontends \
+      --disable-kconfig --disable-nconf --disable-qconf \
+      --disable-gconf --disable-mconf --disable-static \
+      --disable-shared --disable-L10n
+    # Avoid "aclocal/automake missing" errors
+    touch aclocal.m4 Makefile.in
+    make install
+    cd "${tools}"
+    rm -rf nuttx-tools
+  fi
+}
+
+function mips-gcc-toolchain {
+  if [ ! -d "${tools}/pinguino-compilers" ]; then
+    cd "${tools}"
+    git clone https://github.com/PinguinoIDE/pinguino-compilers
+  fi
+
+  case ${os} in
     Darwin)
-      "${CIPLAT}"/darwin.sh
+      add_path "${tools}"/pinguino-compilers/macosx/p32/bin
+      command mips-elf-gcc --version
       ;;
     Linux)
-      "${CIPLAT}"/linux.sh
-      ;;
-    manjaro)
-      to_do "manjaro"
-      ;;
-    msys2)
-      "${CIPLAT}"/msys2.sh
-      ;;
-    ubuntu)
-      "${CIPLAT}"/ubuntu.sh
-      ;;
-    *)
-      to_do "unknown"
+      add_path "${tools}"/pinguino-compilers/linux64/p32/bin
+      command p32-gcc --version
       ;;
   esac
+}
+
+function python-tools {
+  # Python User Env
+  export PIP_USER=yes
+  export PYTHONUSERBASE=${tools}/pylocal
+  add_path "${PYTHONUSERBASE}"/bin
+
+  # workaround for Cython issue
+  # https://github.com/yaml/pyyaml/pull/702#issuecomment-1638930830
+  pip3 install "Cython<3.0"
+  git clone https://github.com/yaml/pyyaml.git && \
+  cd pyyaml && \
+  git checkout release/5.4.1 && \
+  sed -i.bak 's/Cython/Cython<3.0/g' pyproject.toml && \
+  python setup.py sdist && \
+  pip3 install --pre dist/PyYAML-5.4.1.tar.gz
+  cd ..
+
+  pip3 install \
+    cmake-format \
+    CodeChecker \
+    cvt2utf \
+    cxxfilt \
+    esptool==4.5.1 \
+    imgtool==1.9.0 \
+    kconfiglib \
+    pexpect==4.8.0 \
+    pyelftools \
+    pyserial==3.5 \
+    pytest==6.2.5 \
+    pytest-json==0.4.0 \
+    pytest-ordering==0.6 \
+    pytest-repeat==0.9.1
+}
+
+function riscv-gcc-toolchain {
+  add_path "${tools}"/riscv-none-elf-gcc/bin
+
+  if [ ! -f "${tools}/riscv-none-elf-gcc/bin/riscv-none-elf-gcc" ]; then
+    local flavor
+    case ${os} in
+      Darwin)
+        flavor=darwin-x64
+        ;;
+      Linux)
+        flavor=linux-x64
+        ;;
+    esac
+    cd "${tools}"
+    wget --quiet https://github.com/xpack-dev-tools/riscv-none-elf-gcc-xpack/releases/download/v13.2.0-2/xpack-riscv-none-elf-gcc-13.2.0-2-${flavor}.tar.gz
+    tar zxf xpack-riscv-none-elf-gcc-13.2.0-2-${flavor}.tar.gz
+    mv xpack-riscv-none-elf-gcc-13.2.0-2 riscv-none-elf-gcc
+    rm xpack-riscv-none-elf-gcc-13.2.0-2-${flavor}.tar.gz
+  fi
+
+  command riscv-none-elf-gcc --version
+}
+
+function rust {
+  mkdir -p "${tools}"/rust/bin
+  add_path "${tools}"/rust/bin
+
+  if ! type rustc &> /dev/null; then
+    case ${os} in
+      Darwin)
+        brew install rust
+        ;;
+      Linux)
+        # Currently Debian installed rustc doesn't support 2021 edition.
+        export CARGO_HOME=${tools}/rust
+        curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
+        ;;
+    esac
+  fi
+
+  command rustc --version
+}
+
+function rx-gcc-toolchain {
+  add_path "${tools}"/renesas-toolchain/rx-elf-gcc/bin
+
+  if [ ! -f "${tools}/renesas-toolchain/rx-elf-gcc/bin/rx-elf-gcc" ]; then
+    case ${os} in
+      Linux)
+        # Download toolchain source code
+        # RX toolchain is built from source code. Once prebuilt RX toolchain is made available, the below code snippet can be removed.
+        mkdir -p "${tools}"/renesas-tools/rx/source; cd "${tools}"/renesas-tools/rx/source
+        wget --quiet https://gcc-renesas.com/downloads/d.php?f=rx/binutils/4.8.4.201803-gnurx/rx_binutils2.24_2018Q3.tar.gz \
+          -O rx_binutils2.24_2018Q3.tar.gz
+        tar zxf rx_binutils2.24_2018Q3.tar.gz
+        wget --quiet https://gcc-renesas.com/downloads/d.php?f=rx/gcc/4.8.4.201803-gnurx/rx_gcc_4.8.4_2018Q3.tar.gz \
+          -O rx_gcc_4.8.4_2018Q3.tar.gz
+        tar zxf rx_gcc_4.8.4_2018Q3.tar.gz
+        wget --quiet https://gcc-renesas.com/downloads/d.php?f=rx/newlib/4.8.4.201803-gnurx/rx_newlib2.2.0_2018Q3.tar.gz \
+          -O rx_newlib2.2.0_2018Q3.tar.gz
+        tar zxf rx_newlib2.2.0_2018Q3.tar.gz
+
+        # Install binutils
+        cd "${tools}"/renesas-tools/rx/source/binutils; chmod +x ./configure ./mkinstalldirs
+        mkdir -p "${tools}"/renesas-tools/rx/build/binutils; cd "${tools}"/renesas-tools/rx/build/binutils
+        "${tools}"/renesas-tools/rx/source/binutils/configure --target=rx-elf --prefix="${tools}"/renesas-toolchain/rx-elf-gcc \
+          --disable-werror
+        make; make install
 
-  source "${CIWORKSPACE}"/tools/env.sh
+        # Install gcc
+        cd "${tools}"/renesas-tools/rx/source/gcc
+        chmod +x ./contrib/download_prerequisites ./configure ./move-if-change ./libgcc/mkheader.sh
+        ./contrib/download_prerequisites
+        sed -i '1s/^/@documentencoding ISO-8859-1\n/' ./gcc/doc/gcc.texi
+        sed -i 's/@tex/\n&/g' ./gcc/doc/gcc.texi && sed -i 's/@end tex/\n&/g' ./gcc/doc/gcc.texi
+        mkdir -p "${tools}"/renesas-tools/rx/build/gcc; cd "${tools}"/renesas-tools/rx/build/gcc
+        "${tools}"/renesas-tools/rx/source/gcc/configure --target=rx-elf --prefix="${tools}"/renesas-toolchain/rx-elf-gcc \
+        --disable-shared --disable-multilib --disable-libssp --disable-libstdcxx-pch --disable-werror --enable-lto \
+        --enable-gold --with-pkgversion=GCC_Build_1.02 --with-newlib --enable-languages=c
+        make; make install
+
+        # Install newlib
+        cd "${tools}"/renesas-tools/rx/source/newlib; chmod +x ./configure
+        mkdir -p "${tools}"/renesas-tools/rx/build/newlib; cd "${tools}"/renesas-tools/rx/build/newlib
+        "${tools}"/renesas-tools/rx/source/newlib/configure --target=rx-elf --prefix="${tools}"/renesas-toolchain/rx-elf-gcc
+        make; make install
+        rm -rf "${tools}"/renesas-tools/
+        ;;
+    esac
+  fi
+
+  command rx-elf-gcc --version
+}
+
+function sparc-gcc-toolchain {
+  add_path "${tools}"/sparc-gaisler-elf-gcc/bin
+
+  if [ ! -f "${tools}/sparc-gaisler-elf-gcc/bin/sparc-gaisler-elf-gcc" ]; then
+    case ${os} in
+      Linux)
+        cd "${tools}"
+        wget --quiet https://www.gaisler.com/anonftp/bcc2/bin/bcc-2.1.0-gcc-linux64.tar.xz
+        xz -d bcc-2.1.0-gcc-linux64.tar.xz
+        tar xf bcc-2.1.0-gcc-linux64.tar
+        mv bcc-2.1.0-gcc sparc-gaisler-elf-gcc
+        rm bcc-2.1.0-gcc-linux64.tar
+        ;;
+    esac
+  fi
+
+  command sparc-gaisler-elf-gcc --version
+}
+
+function xtensa-esp32-gcc-toolchain {
+  add_path "${tools}"/xtensa-esp32-elf/bin
+
+  if [ ! -f "${tools}/xtensa-esp32-elf/bin/xtensa-esp32-elf-gcc" ]; then
+    cd "${tools}"
+    case ${os} in
+      Darwin)
+        wget --quiet https://github.com/espressif/crosstool-NG/releases/download/esp-12.2.0_20230208/xtensa-esp32-elf-12.2.0_20230208-x86_64-apple-darwin.tar.xz
+        xz -d xtensa-esp32-elf-12.2.0_20230208-x86_64-apple-darwin.tar.xz
+        tar xf xtensa-esp32-elf-12.2.0_20230208-x86_64-apple-darwin.tar
+        rm xtensa-esp32-elf-12.2.0_20230208-x86_64-apple-darwin.tar
+        ;;
+      Linux)
+        wget --quiet https://github.com/espressif/crosstool-NG/releases/download/esp-12.2.0_20230208/xtensa-esp32-elf-12.2.0_20230208-x86_64-linux-gnu.tar.xz
+        xz -d xtensa-esp32-elf-12.2.0_20230208-x86_64-linux-gnu.tar.xz
+        tar xf xtensa-esp32-elf-12.2.0_20230208-x86_64-linux-gnu.tar
+        rm xtensa-esp32-elf-12.2.0_20230208-x86_64-linux-gnu.tar
+        ;;
+    esac
+  fi
+
+  command xtensa-esp32-elf-gcc --version
+}
+
+function u-boot-tools {
+  if ! type mkimage &> /dev/null; then
+    case ${os} in
+      Darwin)
+        brew install u-boot-tools
+        ;;
+      Linux)
+        sudo apt-get install -y u-boot-tools
+        ;;
+    esac
+  fi
+}
+
+function wasi-sdk {
+  add_path "${tools}"/wamrc
+
+  if [ ! -f "${tools}/wasi-sdk/bin/clang" ]; then
+    cd "${tools}"
+    mkdir wamrc
+
+    case ${os} in
+      Darwin)
+        wget --quiet https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-19/wasi-sdk-19.0-macos.tar.gz
+        tar xzf wasi-sdk-19.0-macos.tar.gz
+        mv wasi-sdk-19.0 wasi-sdk
+        cd wamrc
+        wget --quiet https://github.com/bytecodealliance/wasm-micro-runtime/releases/download/WAMR-1.1.2/wamrc-1.1.2-x86_64-macos-latest.tar.gz
+        tar xzf wamrc-1.1.2-x86_64-macos-latest.tar.gz
+        ;;
+      Linux)
+        wget --quiet https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-19/wasi-sdk-19.0-linux.tar.gz
+        tar xzf wasi-sdk-19.0-linux.tar.gz
+        mv wasi-sdk-19.0 wasi-sdk
+        cd wamrc
+        wget --quiet https://github.com/bytecodealliance/wasm-micro-runtime/releases/download/WAMR-1.1.2/wamrc-1.1.2-x86_64-ubuntu-20.04.tar.gz
+        tar xzf wamrc-1.1.2-x86_64-ubuntu-20.04.tar.gz
+        ;;
+    esac
+  fi
+
+  export WASI_SDK_PATH="${tools}/wasi-sdk"
+
+  command ${WASI_SDK_PATH}/bin/clang --version
+  command wamrc --version
 }
 
 function usage {
@@ -101,14 +516,38 @@ function usage {
   echo "  -s setup repos"
   echo "  -c enable ccache"
   echo "  -* support all options in testbuild.sh"
-  echo "  -h will show this help text and terminate"
+  echo "  -h will show this help test and terminate"
   echo "  <testlist> select testlist file"
   echo ""
   exit 1
 }
 
 function enable_ccache {
-  export CCACHE_DIR="${CIWORKSPACE}"/tools/ccache
+  export CCACHE_DIR="${tools}"/ccache
+}
+
+function setup_links {
+  mkdir -p "${tools}"/ccache/bin/
+  ln -sf "$(which ccache)" "${tools}"/ccache/bin/aarch64-none-elf-gcc
+  ln -sf "$(which ccache)" "${tools}"/ccache/bin/aarch64-none-elf-g++
+  ln -sf "$(which ccache)" "${tools}"/ccache/bin/arm-none-eabi-gcc
+  ln -sf "$(which ccache)" "${tools}"/ccache/bin/arm-none-eabi-g++
+  ln -sf "$(which ccache)" "${tools}"/ccache/bin/avr-gcc
+  ln -sf "$(which ccache)" "${tools}"/ccache/bin/avr-g++
+  ln -sf "$(which ccache)" "${tools}"/ccache/bin/cc
+  ln -sf "$(which ccache)" "${tools}"/ccache/bin/c++
+  ln -sf "$(which ccache)" "${tools}"/ccache/bin/clang
+  ln -sf "$(which ccache)" "${tools}"/ccache/bin/clang++
+  ln -sf "$(which ccache)" "${tools}"/ccache/bin/gcc
+  ln -sf "$(which ccache)" "${tools}"/ccache/bin/g++
+  ln -sf "$(which ccache)" "${tools}"/ccache/bin/p32-gcc
+  ln -sf "$(which ccache)" "${tools}"/ccache/bin/riscv64-unknown-elf-gcc
+  ln -sf "$(which ccache)" "${tools}"/ccache/bin/riscv64-unknown-elf-g++
+  ln -sf "$(which ccache)" "${tools}"/ccache/bin/sparc-gaisler-elf-gcc
+  ln -sf "$(which ccache)" "${tools}"/ccache/bin/sparc-gaisler-elf-g++
+  ln -sf "$(which ccache)" "${tools}"/ccache/bin/x86_64-elf-gcc
+  ln -sf "$(which ccache)" "${tools}"/ccache/bin/x86_64-elf-g++
+  ln -sf "$(which ccache)" "${tools}"/ccache/bin/xtensa-esp32-elf-gcc
 }
 
 function setup_repos {
@@ -131,13 +570,49 @@ function setup_repos {
   popd
 }
 
+function install_tools {
+  mkdir -p "${tools}"
+
+case ${os} in
+  Darwin)
+    install="arm-gcc-toolchain arm64-gcc-toolchain avr-gcc-toolchain binutils bloaty elf-toolchain gen-romfs gperf kconfig-frontends mips-gcc-toolchain python-tools riscv-gcc-toolchain rust xtensa-esp32-gcc-toolchain u-boot-tools util-linux wasi-sdk c-cache"
+    mkdir -p "${tools}"/homebrew
+    export HOMEBREW_CACHE=${tools}/homebrew
+    # https://github.com/apache/arrow/issues/15025
+    rm -f /usr/local/bin/2to3* || :
+    rm -f /usr/local/bin/idle3* || :
+    rm -f /usr/local/bin/pydoc3* || :
+    rm -f /usr/local/bin/python3* || :
+    rm -f /usr/local/bin/python3-config || :
+    # same for openssl
+    rm -f /usr/local/bin/openssl || :
+    ;;
+  Linux)
+    install="arm-gcc-toolchain binutils gen-romfs gperf kconfig-frontends python-tools riscv-gcc-toolchain c-cache"
+    ;;
+esac
+
+  pushd .
+  for func in ${install}; do
+    ${func}
+  done
+  popd
+
+  setup_links
+  echo PATH="${EXTRA_PATH}"/"${PATH}" > "${tools}"/env.sh
+}
+
 function run_builds {
   local ncpus
-  if [ "X$osname" == "XDarwin" ]; then
-    ncpus=$(sysctl -n hw.ncpu)
-  else
-    ncpus=$(grep -c ^processor /proc/cpuinfo)
-  fi
+
+  case ${os} in
+    Darwin)
+      ncpus=$(sysctl -n hw.ncpu)
+      ;;
+    Linux)
+      ncpus=$(grep -c ^processor /proc/cpuinfo)
+      ;;
+  esac
 
   options+="-j ${ncpus}"
 
@@ -146,7 +621,6 @@ function run_builds {
   done
 
   if [ -d "${CCACHE_DIR}" ]; then
-    # Print a summary of configuration and statistics counters
     ccache -s
   fi
 }