diff --git a/.github/workflows/build-installers.yml b/.github/workflows/build-installers.yml
new file mode 100644
index 000000000..22ee3b52a
--- /dev/null
+++ b/.github/workflows/build-installers.yml
@@ -0,0 +1,119 @@
+name: Build Installers
+
+on:
+  workflow_dispatch:
+    inputs:
+      openstudio_version:
+        description: 'OpenStudio Version (e.g. 3.11.0)'
+        required: true
+        default: '3.11.0'
+      openstudio_version_sha:
+        description: 'OpenStudio Version SHA (e.g. 241b8abb4d)'
+        required: true
+        default: '241b8abb4d'
+      openstudio_version_ext:
+        description: 'OpenStudio Version Extension (e.g. -rc1)'
+        required: false
+        default: ''
+  push:
+    branches:
+      - master
+      - develop
+  pull_request:
+
+env:
+  OPENSTUDIO_VERSION: ${{ inputs.openstudio_version || '3.11.0' }}
+  OPENSTUDIO_VERSION_SHA: ${{ inputs.openstudio_version_sha || '241b8abb4d' }}
+  OPENSTUDIO_VERSION_EXT: ${{ inputs.openstudio_version_ext || '' }}
+
+jobs:
+  build-linux:
+    runs-on: ubuntu-24.04
+    steps:
+      - name: Delete huge unnecessary tools folder
+        run: rm -rf /opt/hostedtoolcache
+      - name: Check out repository
+        uses: actions/checkout@v4
+      - name: Setup
+        shell: bash
+        run: ./ci/github-actions/setup.sh
+        env:
+          BUILD_TYPE: build
+      - name: Build Gem Package
+        shell: bash
+        run: ./ci/github-actions/export_build_linux.sh
+      - name: Upload Linux Artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: openstudio-server-gems-linux
+          path: build/NREL/export/*.tar.gz
+
+  build-macos:
+    runs-on: macos-15-intel # Intel runner required for x86_64 architecture compatibility with OpenStudio (matching the test workflow)
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v4
+      - name: Setup
+        shell: bash
+        run: ./ci/github-actions/setup.sh
+        env:
+          BUILD_TYPE: build
+      - name: Build Gem Package
+        shell: bash
+        run: ./ci/github-actions/export_build_osx.sh
+      - name: Upload macOS Artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: openstudio-server-gems-darwin
+          path: build/NREL/export/*.tar.gz
+
+  build-macos-arm:
+    runs-on: macos-15
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v4
+      - name: Setup
+        shell: bash
+        run: ./ci/github-actions/setup.sh
+        env:
+          BUILD_TYPE: build
+      - name: Build Gem Package
+        shell: bash
+        run: ./ci/github-actions/export_build_osx.sh
+      - name: Upload macOS ARM Artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: openstudio-server-gems-darwin-arm
+          path: build/NREL/export/*.tar.gz
+
+  build-windows:
+    runs-on: windows-latest
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v4
+      
+      - name: Install Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: '3.2.2'
+          bundler-cache: false # We manage gems manually via openstudio_meta
+
+      - name: Setup Windows Environment
+        shell: cmd
+        run: ci\github-actions\setup_win.bat
+
+      - name: Build Gem Package
+        shell: cmd
+        env:
+          BUNDLE_VERSION: 2.4.10
+          GEM_HOME: C:\projects\openstudio-server\gems
+          GEM_PATH: C:\projects\openstudio-server\gems;C:\projects\openstudio-server\gems\bundler\gems
+          RUBYLIB: C:\projects\openstudio\Ruby
+          OPENSTUDIO_TEST_EXE: C:\projects\openstudio\bin\openstudio.exe
+        run: ci\github-actions\export_build_win.bat
+
+      - name: Upload Windows Artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: openstudio-server-gems-win32
+          path: build/NREL/export/*.tar.gz
diff --git a/bin/openstudio_meta b/bin/openstudio_meta
index 485f4eeef..9f46241e3 100755
--- a/bin/openstudio_meta
+++ b/bin/openstudio_meta
@@ -334,9 +334,11 @@ class InstallGems
       sys_cmds << "#{$ruby_path} #{bundler_bin} config build.libxml-ruby --use-system-libraries --with-xml2-config=/usr/bin/xml2-config"
     end
     if options[:test_dev_build]
-      sys_cmds << "#{$ruby_path} #{bundler_bin} install --retry=3 --jobs=1 --with default development test"
+      sys_cmds << "#{$ruby_path} #{bundler_bin} config set --local with 'default development test'"
+      sys_cmds << "#{$ruby_path} #{bundler_bin} install --retry=3 --jobs=1"
     else
-      sys_cmds << "#{$ruby_path} #{bundler_bin} install --retry=3 --jobs=1 --without development test"
+      sys_cmds << "#{$ruby_path} #{bundler_bin} config set --local without 'development test'"
+      sys_cmds << "#{$ruby_path} #{bundler_bin} install --retry=3 --jobs=1"
     end
     sys_cmds << "#{$ruby_path} #{bundler_bin} update"
     #unless Gem.win_platform?
diff --git a/ci/github-actions/export_build_win.bat b/ci/github-actions/export_build_win.bat
new file mode 100644
index 000000000..ffd0ee9b8
--- /dev/null
+++ b/ci/github-actions/export_build_win.bat
@@ -0,0 +1,20 @@
+@echo off
+setlocal
+
+REM Create export directory
+if not exist "C:\export" mkdir C:\export
+
+REM Install Bundler
+call gem install bundler -v %BUNDLE_VERSION% --no-document
+if %ERRORLEVEL% neq 0 exit /b %ERRORLEVEL%
+
+REM Run Build
+call ruby bin\openstudio_meta install_gems --export="C:\export" --debug
+if %ERRORLEVEL% neq 0 exit /b %ERRORLEVEL%
+
+REM Move export to workspace for upload
+if not exist "build\NREL" mkdir build\NREL
+move C:\export build\NREL\export
+if %ERRORLEVEL% neq 0 exit /b %ERRORLEVEL%
+
+endlocal
diff --git a/ci/github-actions/setup_win.bat b/ci/github-actions/setup_win.bat
new file mode 100644
index 000000000..2eaefed59
--- /dev/null
+++ b/ci/github-actions/setup_win.bat
@@ -0,0 +1,43 @@
+@echo off
+setlocal
+
+REM --- Install OpenStudio ---
+set "InstallerName=OpenStudio-%OPENSTUDIO_VERSION%%OPENSTUDIO_VERSION_EXT%+%OPENSTUDIO_VERSION_SHA%-Windows.exe"
+set "Url=https://github.com/NREL/OpenStudio/releases/download/v%OPENSTUDIO_VERSION%%OPENSTUDIO_VERSION_EXT%/%InstallerName%"
+
+echo Downloading %Url%...
+powershell -Command "Invoke-WebRequest -Uri '%Url%' -OutFile '%InstallerName%'"
+if %ERRORLEVEL% neq 0 (
+    echo Failed to download OpenStudio from %Url% (exit code %ERRORLEVEL%)
+    exit /b %ERRORLEVEL%
+)
+
+echo Installing OpenStudio...
+start /wait "" ".\%InstallerName%" /S /D=C:\projects\openstudio
+if %ERRORLEVEL% neq 0 (
+    echo Failed to install OpenStudio from "%InstallerName%" (exit code %ERRORLEVEL%)
+    exit /b %ERRORLEVEL%
+)
+
+REM Verify OpenStudio
+set "PATH=C:\projects\openstudio\bin;%PATH%"
+call openstudio openstudio_version
+if %ERRORLEVEL% neq 0 (
+    echo Failed to verify OpenStudio installation - 'openstudio openstudio_version' command failed (exit code %ERRORLEVEL%)
+    exit /b %ERRORLEVEL%
+)
+
+REM --- Setup MSYS2 and Dependencies ---
+call ridk install 2 3
+if %ERRORLEVEL% neq 0 (
+    echo Failed to install MSYS2 dependencies via ridk (exit code %ERRORLEVEL%)
+    exit /b %ERRORLEVEL%
+)
+
+call gcc --version
+if %ERRORLEVEL% neq 0 (
+    echo Error: gcc not found
+    exit /b %ERRORLEVEL%
+)
+
+endlocal
diff --git a/docker/deployment/scripts/deploy_docker_github_actions.sh b/docker/deployment/scripts/deploy_docker_github_actions.sh
index 668bd88cb..f3db36444 100755
--- a/docker/deployment/scripts/deploy_docker_github_actions.sh
+++ b/docker/deployment/scripts/deploy_docker_github_actions.sh
@@ -15,7 +15,7 @@ elif [ "${GITHUB_REF}" == "refs/heads/master" ]; then
 elif [ "${GITHUB_REF}" == "refs/heads/setup_github_actions" ]; then
     IMAGETAG=experimental
 elif [ "${GITHUB_REF}" == "refs/heads/3.11.0" ]; then
-     IMAGETAG="3.11.0-rc2"
+     IMAGETAG="3.11.0"
 fi
 
 if [ "${IMAGETAG}" != "skip" ]; then