diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 40993e87921..038913061e4 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -171,6 +171,7 @@ jobs:
       fail-fast: false
       matrix:
         arch: ['32', '64']
+        #arch: ['64']
     name: mingw${{ matrix.arch }}
     runs-on: ubuntu-22.04
     env:
@@ -189,13 +190,22 @@ jobs:
         with:
           fetch-depth: 0
           submodules: recursive
-      - name: Install APT dependencies
-        run: xargs -a .github/workflows/deps-mingw-w64.txt sudo apt-get install --yes
-      - name: Install CMake
-        run: .github/workflows/install-cmake.sh
-      - name: Install PowerShell
-        run: .github/workflows/install-powershell.sh
+      - name: Download vcpkg for ACT
+        if: ${{ env.ACT }} # ACT apparently doesn't have vcpkg installed
+        run: |
+          cd /usr/local/share
+          sudo git clone --recursive https://github.com/microsoft/vcpkg.git
+          sudo ./vcpkg/bootstrap-vcpkg.sh
+          echo "VCPKG_INSTALLATION_ROOT=$(pwd)/vcpkg" >> "$GITHUB_ENV"
+          export VCPKG_INSTALLATION_ROOT="$(pwd)/vcpkg"
+      - name: Install system dependencies
+        run: |
+          sudo apt-get update
+          .github/workflows/setup-cmake.sh
+          .github/workflows/setup-mingw-packages.sh
+          sudo apt-get install -y $(xargs < .github/workflows/deps-ubuntu-24.04-mingw.txt)
       - name: Cache vcpkg dependencies
+        if: ${{ !env.ACT }} # skip during local actions testing
         id: cache-deps
         uses: actions/cache@v3
         with:
@@ -204,6 +214,7 @@ jobs:
             vcpkg-mingw${{ matrix.arch }}-
           path: build/vcpkg_installed
       - name: Cache ccache data
+        if: ${{ !env.ACT }} # skip during local actions testing
         uses: actions/cache@v3
         with:
           key: "ccache-${{ github.job }}-${{ matrix.arch }}-${{ github.ref }}\
@@ -217,14 +228,15 @@ jobs:
           ccache --zero-stats
           cmake -S . \
             -B build \
-            -DCMAKE_TOOLCHAIN_FILE="./cmake/toolchains/MinGW-W64-${{ matrix.arch }}.cmake" \
+            -DCMAKE_TOOLCHAIN_FILE="../cmake/toolchains/MinGW-W64-${{ matrix.arch }}.cmake" \
             -DVCPKG_TARGET_TRIPLET="${{ env.vcpkg_arch }}-mingw-static" \
             -DVCPKG_HOST_TRIPLET="${{ env.vcpkg_arch }}-linux" \
             -DVCPKG_MANIFEST_INSTALL="${{ env.should_install_manifest }}" \
             $CMAKE_OPTS
         env:
-          should_install_manifest:
-            ${{ steps.cache-deps.outputs.cache-hit == 'true' && 'NO' || 'YES' }}
+          #should_install_manifest:
+          #  ${{ steps.cache-deps.outputs.cache-hit == 'true' && 'NO' || 'YES' }}
+          should_install_manifest: 'YES'
           vcpkg_arch:
             ${{ matrix.arch == '32' && 'x86' || 'x64' }}
       - name: Build
@@ -232,6 +244,7 @@ jobs:
       - name: Package
         run: cmake --build build --target package
       - name: Upload artifacts
+        if: ${{ !env.ACT }} # skip during local actions testing
         uses: actions/upload-artifact@v4
         with:
           name: mingw${{ matrix.arch }}
@@ -245,6 +258,11 @@ jobs:
           ccache --show-stats
         env:
           CCACHE_MAXSIZE: 500M
+      - name: Keep container running on failure
+        if: ${{ env.ACT && failure() }}
+        run: |
+          echo "Build failed. Dropping into an interactive shell."
+          tail -f /dev/null
   msvc:
     strategy:
       fail-fast: false
diff --git a/.github/workflows/deps-mingw-w64.txt b/.github/workflows/deps-ubuntu-24.04-mingw.txt
similarity index 81%
rename from .github/workflows/deps-mingw-w64.txt
rename to .github/workflows/deps-ubuntu-24.04-mingw.txt
index d74f0a957a6..9378882bf18 100644
--- a/.github/workflows/deps-mingw-w64.txt
+++ b/.github/workflows/deps-ubuntu-24.04-mingw.txt
@@ -4,6 +4,7 @@ ca-certificates
 ccache
 cmake
 dirmngr
+fftw-mingw-w64
 file
 git
 gnupg
@@ -11,8 +12,11 @@ gpg
 g++-mingw-w64-i686-posix
 g++-mingw-w64-x86-64-posix
 libc6-dev
+libfltk1.3-dev
+libglx-dev
 liblist-moreutils-perl
 libmpc3
+libopengl-dev
 libxml2-utils
 libxml-perl
 lsb-release
@@ -22,6 +26,7 @@ mingw-w64-tools
 nsis
 perl
 qt5-qmake
+qt5base-mingw-w64
 software-properties-common
 ssh-client
 sudo
diff --git a/.github/workflows/install-powershell.sh b/.github/workflows/install-powershell.sh
index 2ec8f3f7638..1839032a579 100755
--- a/.github/workflows/install-powershell.sh
+++ b/.github/workflows/install-powershell.sh
@@ -1,33 +1,23 @@
 #!/bin/sh
 
 # PowerShell is needed for some MinGW dependencies from vcpkg
-
 # Script taken from: https://learn.microsoft.com/en-us/powershell/scripting/install/install-ubuntu?view=powershell-7.4#installation-via-direct-download
 
-###################################
-# Prerequisites
-
 # Update the list of packages
 sudo apt-get update
 
 # Install pre-requisite packages.
-sudo apt-get install -y wget apt-transport-https software-properties-common
-
-# Get the version of Ubuntu
-source /etc/os-release
+sudo apt-get install -y wget
 
-# Download the Microsoft repository keys
-wget -q https://packages.microsoft.com/config/ubuntu/$VERSION_ID/packages-microsoft-prod.deb
+# Download the PowerShell package file
+wget https://github.com/PowerShell/PowerShell/releases/download/v7.4.3/powershell_7.4.3-1.deb_amd64.deb
 
-# Register the Microsoft repository keys
-sudo dpkg -i packages-microsoft-prod.deb
-
-# Delete the Microsoft repository keys file
-rm packages-microsoft-prod.deb
+###################################
+# Install the PowerShell package
+sudo dpkg -i powershell_7.4.3-1.deb_amd64.deb
 
-# Update the list of packages after we added packages.microsoft.com
-sudo apt-get update
+# Resolve missing dependencies and finish the install (if necessary)
+sudo apt-get install -f
 
-###################################
-# Install PowerShell
-sudo apt-get install -y powershell
+# Delete the downloaded package file
+rm powershell_7.4.3-1.deb_amd64.deb
diff --git a/.github/workflows/install-cmake.sh b/.github/workflows/setup-cmake.sh
similarity index 77%
rename from .github/workflows/install-cmake.sh
rename to .github/workflows/setup-cmake.sh
index 6c0c4359caf..4106b267167 100755
--- a/.github/workflows/install-cmake.sh
+++ b/.github/workflows/setup-cmake.sh
@@ -1,9 +1,10 @@
 #!/bin/sh
 
-# Kitware APT repo for latest CMake --- See: https://apt.kitware.com/
-# As of 5/21/2024, only focal and jammy are supported
+# Add Kitware APT repo for latest CMake --- See: https://apt.kitware.com/
+# As of 6/29/2024, only focal, jammy, and noble are supported
 . /etc/os-release
-if [ "$UBUNTU_CODENAME" = "focal" ] || [ "$UBUNTU_CODENAME" = "jammy" ]; then
+if [ "$UBUNTU_CODENAME" = "focal" ] || [ "$UBUNTU_CODENAME" = "jammy" ] || [ "$UBUNTU_CODENAME" = "noble" ]; then
+    sudo apt-get install -y wget gpg
     test -f /usr/share/doc/kitware-archive-keyring/copyright || \
         wget -O - https://apt.kitware.com/keys/kitware-archive-latest.asc 2>/dev/null \
         | gpg --dearmor - | sudo tee /usr/share/keyrings/kitware-archive-keyring.gpg >/dev/null
@@ -14,5 +15,3 @@ if [ "$UBUNTU_CODENAME" = "focal" ] || [ "$UBUNTU_CODENAME" = "jammy" ]; then
         sudo rm /usr/share/keyrings/kitware-archive-keyring.gpg
     sudo apt-get install -y kitware-archive-keyring
 fi
-
-sudo apt-get update && sudo apt-get install -y cmake
diff --git a/.github/workflows/setup-mingw-packages.sh b/.github/workflows/setup-mingw-packages.sh
new file mode 100755
index 00000000000..597c5120030
--- /dev/null
+++ b/.github/workflows/setup-mingw-packages.sh
@@ -0,0 +1,9 @@
+#!/bin/sh
+
+# Currently using these PPA packages:
+#   fftw-mingw-w64
+#   qt5base-mingw-w64
+
+sudo echo "deb http://ppa.launchpad.net/tobydox/mingw-w64/ubuntu focal main" >> /etc/apt/sources.list
+sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 72931B477E22FEFD47F8DECE02FE5F12ADDE29B2
+sudo apt-get update
diff --git a/vcpkg.json b/vcpkg.json
index 0d06be64d11..61f348a4810 100644
--- a/vcpkg.json
+++ b/vcpkg.json
@@ -8,7 +8,8 @@
 			"features": [
 				"sse",
 				"sse2"
-			]
+			],
+			"platform": "!mingw"
 		},
 		{
 			"name": "fltk",
@@ -63,13 +64,17 @@
 		},
 		{
 			"name": "mp3lame",
-			"default-features": false,
-			"platform": "!mingw"
+			"default-features": false
 		},
 		{
 			"name": "portaudio",
 			"default-features": false
 		},
+		{
+			"name": "pulseaudio",
+			"default-features": false,
+			"platform": "mingw"
+		},
 		{
 			"name": "sdl2",
 			"default-features": false