diff --git a/.github/workflows/ctest.yml b/.github/workflows/ctest.yml
index db4ec2a..0ada805 100644
--- a/.github/workflows/ctest.yml
+++ b/.github/workflows/ctest.yml
@@ -8,17 +8,32 @@ on:
     branches: ["main", "dev"]
   workflow_dispatch:
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.sha }}
+  cancel-in-progress: true
+
 # Define the matrix for different operating systems
 jobs:
   build-and-test:
-    name: ${{ matrix.os }} / CMake ${{ matrix.cmakeVersion }}
+    name: ${{ matrix.os }} / ${{ matrix.architecture }} / CMake ${{ matrix.cmakeVersion }}
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest]
-        # CMake >= 3.21 is required to use "--preset <presetName>" and discover generators
-        cmakeVersion: ["3.21", latest]
-
+        os:
+          - ubuntu-latest
+          - macos-latest
+          - windows-latest
+        architecture: [arm64, x64, x86]
+        cmakeVersion: ["3.21", latest] # CMake >= 3.21 is required to use "--preset <presetName>" and discover generators
+        exclude:
+          - os: macos-latest
+            architecture: x86
+          - os: windows-latest
+            architecture: arm64
+          - os: ubuntu-latest
+            architecture: arm64
+          - os: ubuntu-latest
+            architecture: x86
     steps:
     - name: Checkout repository
       uses: actions/checkout@v4
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 347d0ef..d7fbda4 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -15,7 +15,20 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest]
+        os:
+          - ubuntu-latest
+          - macos-latest
+          - windows-latest
+          - windows-2019               # Used for Windows 32-bit builds
+        architecture: [arm64, x64]
+        cmakeVersion: ["3.21", latest] # CMake >= 3.21 is required to use "--preset <presetName>" and discover generators
+        exclude:                       # Only use x64 strategies for Linux and Windows
+          - os: windows-latest
+            architecture: arm64
+          - os: windows-2019
+            architecture: arm64
+          - os: ubuntu-latest
+            architecture: arm64
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
diff --git a/CITATION.cff b/CITATION.cff
index 549da1c..a5b765e 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -27,8 +27,9 @@ authors:
       Institute for Telecommunication Sciences
     address: 325 Broadway
     city: Boulder
-    country: CO
+    country: US
     post-code: '80305'
+    region: Colorado
     alias: NTIA/ITS
     email: code@ntia.gov
     website: 'https://its.ntia.gov'
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 632a364..df754bb 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -10,6 +10,28 @@
 # >=3.14 required for GoogleTest v1.12.x
 cmake_minimum_required(VERSION 3.14 FATAL_ERROR)
 
+# If on macOS, handle arm64/x86_64 architectures (must be done before project())
+if (APPLE)
+    # Get the current platform's native architecture
+    execute_process(
+        COMMAND uname -m
+        RESULT_VARIABLE result
+        OUTPUT_VARIABLE MACOS_NATIVE_ARCHITECTURE
+        OUTPUT_STRIP_TRAILING_WHITESPACE
+    )
+    message(STATUS "Current macOS architecture is " ${MACOS_NATIVE_ARCHITECTURE})
+
+    # If running on Apple silicon, try a universal build. Otherwise, a native build.
+    if ((CMAKE_GENERATOR STREQUAL "Xcode") AND (MACOS_NATIVE_ARCHITECTURE STREQUAL "arm64"))
+        set(CMAKE_OSX_ARCHITECTURE "arm64;x86_64" CACHE STRING "")
+        set(PROPLIB_ARCHITECTURE "macOS_universal")
+        message(STATUS "Configured for universal macOS build")
+    else ()
+        set(PROPLIB_ARCHITECTURE MACOS_NATIVE_ARCHITECTURE)
+        message(STATUS "Configured for native macOS build")
+    endif ()
+endif ()
+
 ###########################################
 ## PROJECT METADATA
 ###########################################
@@ -49,15 +71,25 @@ target_compile_features(proplib_compiler_flags INTERFACE cxx_std_11)
 set(gcc_like_cxx "$<COMPILE_LANG_AND_ID:CXX,ARMClang,AppleClang,Clang,GNU,LCC>")
 set(msvc_cxx "$<COMPILE_LANG_AND_ID:CXX,MSVC>")
 target_compile_options(proplib_compiler_flags INTERFACE
-  "$<${gcc_like_cxx}:$<BUILD_INTERFACE:-Wall;-Wextra;-Wshadow;-Wformat=2;-Wunused>>"
-  "$<${msvc_cxx}:$<BUILD_INTERFACE:-W3>>"
+    # For GCC-like compilers in any configuration
+    "$<${gcc_like_cxx}:$<BUILD_INTERFACE:-Wall;-Wextra;-Wshadow;-Wformat=2;-Wunused>>"
+    # For GCC-like compilers in Release configurations
+    "$<${gcc_like_cxx}:$<$<CONFIG:Release>:-O3;-DNDEBUG>>"
+    # For GCC-like compilers in Debug configurations
+    "$<${gcc_like_cxx}:$<$<CONFIG:Debug>:-g;-O0>>"
+    # For MSVC compiler in any configuration
+    "$<${msvc_cxx}:$<BUILD_INTERFACE:/W3;/Gz>>"
+    # For MSVC compiler in Release configurations
+    "$<${msvc_cxx}:$<$<CONFIG:Release>:/O2;/DNDEBUG>>"
+    # For MSVC compiler in Debug configurations
+    "$<${msvc_cxx}:$<$<CONFIG:Debug>:/Od;/Zi>>"
 )
 
 # Enable Hot Reload for MSVC compilers if supported.
 if (POLICY CMP0141)
   cmake_policy(SET CMP0141 NEW)
   set(CMAKE_MSVC_DEBUG_INFORMATION_FORMAT "$<IF:$<AND:$<C_COMPILER_ID:MSVC>,$<CXX_COMPILER_ID:MSVC>>,$<$<CONFIG:Debug,RelWithDebInfo>:EditAndContinue>,$<$<CONFIG:Debug,RelWithDebInfo>:ProgramDatabase>>")
-endif()
+endif ()
 
 # control where the static and shared libraries are built
 set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY "${PROJECT_SOURCE_DIR}/bin" CACHE STRING "Set the CMAKE Archive Output Directory")
diff --git a/tests/TestUtils.cpp b/tests/TestUtils.cpp
index 75b6390..f9011fe 100644
--- a/tests/TestUtils.cpp
+++ b/tests/TestUtils.cpp
@@ -20,7 +20,7 @@ std::string getDataDirectory() {
     appendDirectorySep(dataDir);
     dataDir += "extern";
     appendDirectorySep(dataDir);
-    dataDir += "p2108-test-data";
+    dataDir += "p2108-test-data";  // Name of data directory as cloned in the `extern` directory
     appendDirectorySep(dataDir);
     return dataDir;
 }