diff --git a/.cspell/words.txt b/.cspell/words.txt
index 790238d..7ccfa42 100644
--- a/.cspell/words.txt
+++ b/.cspell/words.txt
@@ -27,6 +27,7 @@ cstdint
 cxxflags
 cxxopts_project
 cxxstd
+cygpath
 d_largefile64_source
 d_largefile_source
 d_ndebug
@@ -160,6 +161,7 @@ msvc
 msvcr120
 msvcr90
 mswsock
+msys2
 mtune
 mwindows
 nana
diff --git a/.gitignore b/.gitignore
index 486ec65..d82196f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -11,3 +11,10 @@ scripts/cleanup.sh
 support/Dockerfile
 version.cpp
 version.rc
+.DS_Store
+*.gz
+*.bz2
+*.xz
+*.zip
+*.msi
+*.exe
diff --git a/.jenkins_builds b/.jenkins_builds
index 65a7d39..98521a0 100644
--- a/.jenkins_builds
+++ b/.jenkins_builds
@@ -37,6 +37,12 @@ pipeline {
           }
         }
 
+        stage('clean_packages') {
+          steps { script { retryWithBackoff(2, 5) { sh 'clean_packages.sh' } } }
+        }
+        stage('grab_packages') {
+          steps { script { retryWithBackoff(2, 5) { sh 'grab_packages.sh' } } }
+        }
         stage('win32_shared') {
           steps { script { retryWithBackoff(2, 5) { sh 'scripts/test_win32.sh shared' } } }
         }
diff --git a/.jenkins_macos b/.jenkins_macos
index cbf33a2..59adfe2 100644
--- a/.jenkins_macos
+++ b/.jenkins_macos
@@ -36,6 +36,12 @@ pipeline {
           }
         }
 
+        stage('clean_packages') {
+          steps { script { retryWithBackoff(2, 5) { sh 'clean_packages.sh' } } }
+        }
+        stage('grab_packages') {
+          steps { script { retryWithBackoff(2, 5) { sh 'grab_packages.sh' } } }
+        }
         stage('macos_aarch64_shared') {
           steps {
             script { retryWithBackoff(2, 5) { sh 'scripts/test_unix.sh shared' } }
diff --git a/.jenkins_msys2 b/.jenkins_msys2
new file mode 100644
index 0000000..1979965
--- /dev/null
+++ b/.jenkins_msys2
@@ -0,0 +1,103 @@
+#!groovy
+pipeline {
+  agent none
+
+  environment {
+    PROJECT_TEST_CONFIG_DIR = "C:\\.ci\\cpp_build_system\\test"
+  }
+
+  options {
+    disableConcurrentBuilds()
+    skipDefaultCheckout()
+    timestamps()
+  }
+
+  stages {
+    stage('msys2 x86_64') {
+      agent any
+      stages {
+        stage('Checkout') {
+          steps {
+            script {
+              int maxAttempts = 6
+              int baseDelay = 10
+              for (int attempt = 1; attempt <= maxAttempts; attempt++) {
+                try {
+                  checkout scm
+                  break
+                } catch (err) {
+                  if (attempt == maxAttempts) { throw err }
+                  int waitSec = baseDelay * (1 << (attempt - 1))
+                  echo "Checkout failed (attempt ${attempt}/${maxAttempts}). Waiting ${waitSec}s before retry..."
+                  sleep time: waitSec, unit: 'SECONDS'
+                }
+              }
+            }
+          }
+        }
+
+        stage('clean_packages') {
+          steps { script { retryWithBackoff(2, 5) { sh 'clean_packages.cmd' } } }
+        }
+        stage('grab_packages') {
+          steps { script { retryWithBackoff(2, 5) { sh 'grab_packages.cmd' } } }
+        }
+        stage('msys2_x86_64_shared') {
+          steps {
+            script { retryWithBackoff(2, 5) { bat 'scripts\\test_msys2.cmd shared "" x86_64' } }
+          }
+        }
+        stage('msys2_x86_64_shared_crypto') {
+          steps {
+            script { retryWithBackoff(2, 5) { bat 'scripts\\test_msys2.cmd shared 1 x86_64' } }
+          }
+        }
+        stage('msys2_x86_64_shared_crypto_no_boost') {
+          steps {
+            script { retryWithBackoff(2, 5) { bat 'scripts\\test_msys2.cmd shared 7 x86_64' } }
+          }
+        }
+        stage('msys2_x86_64_shared_dsm') {
+          steps {
+            script { retryWithBackoff(2, 5) { bat 'scripts\\test_msys2.cmd shared 2 x86_64' } }
+          }
+        }
+        stage('msys2_x86_64_shared_sqlite') {
+          steps {
+            script { retryWithBackoff(2, 5) { bat 'scripts\\test_msys2.cmd shared 3 x86_64' } }
+          }
+        }
+        stage('msys2_x86_64_shared_errors_v1') {
+          steps {
+            script { retryWithBackoff(2, 5) { bat 'scripts\\test_msys2.cmd shared 4 x86_64' } }
+          }
+        }
+        stage('msys2_x86_64_shared_fmt') {
+          steps {
+            script { retryWithBackoff(2, 5) { bat 'scripts\\test_msys2.cmd shared 5 x86_64' } }
+          }
+        }
+        stage('msys2_x86_64_shared_libevent') {
+          steps {
+            script { retryWithBackoff(2, 5) { bat 'scripts\\test_msys2.cmd shared 6 x86_64' } }
+          }
+        }
+      }
+    }
+  }
+}
+
+def retryWithBackoff(int maxAttempts, int baseDelaySeconds, Closure body) {
+  for (int attempt = 1; attempt <= maxAttempts; attempt++) {
+    try {
+      body()
+      return
+    } catch (err) {
+      if (attempt == maxAttempts) { throw err }
+      int waitSec = baseDelaySeconds * (1 << (attempt - 1))
+      echo "Step failed (attempt ${attempt}/${maxAttempts}). Waiting ${waitSec}s before retry..."
+      sleep time: waitSec, unit: 'SECONDS'
+    }
+  }
+}
+
diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..c9a46c8
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,21 @@
+# Changelog
+
+## v1.0.1-release
+
+### Issues
+
+- \#1 Add Windows MSYS2 Jenkins build and testing support
+
+### Changes from v1.0.0-release
+
+- Remove stray "_libevent_" inserted mid-name on macOS x86_64 Jenkins test builds
+- Properly handle `alpha.x`, `beta.x` and `rc.x` releases in `deliver.sh`
+- Use `cygpath` to format Windows paths for use in MSYS2
+
+---
+
+## v1.0.0-release
+
+- Initial Release
+
+---
diff --git a/README.md b/README.md
index aa442a3..4e7eccf 100644
--- a/README.md
+++ b/README.md
@@ -36,13 +36,26 @@ All builds are orchestrated through project scripts — **direct CMake invocatio
 
 ## 🚀 Getting Started
 
-### 1️⃣ Clone the Build System
+### 1️⃣ Clone the Build System and Grab Packages
 ```bash
 git clone https://git.fifthgrid.com/sgraves/cpp-build-system.git
 git clone https://github.com/sgraves76/cpp-build-system.git
 cd cpp-build-system
 ```
 
+Run the root-level `grab_packages.sh`/`grab_packages.cmd`
+
+Example:
+```bash
+./grab_packages.sh
+```
+
+```cmd
+grab_packages.cmd
+```
+
+This will download and validate all packages currently supported by `cpp-build-system`. They will be placed within the `support/3rd_party/` folder.
+
 ---
 
 ### 2️⃣ Create a New Project
@@ -52,11 +65,11 @@ Run the root-level `create_project.sh` with:
 
 Example:
 ```bash
-./create_project.sh MyApp ~/dev
+./create_project.sh MyApp ~/src
 ```
 This creates:
 ```
-~/dev/MyApp/
+~/src/MyApp/
 ```
 
 The new directory contains:
@@ -70,7 +83,7 @@ The new directory contains:
 
 ### 3️⃣ Configure the Project
 
-In your new project directory (`~/dev/MyApp/`), edit these two files before your first build:
+In your new project directory (`~/src/MyApp/`), edit these two files before your first build:
 
 > ⚠️ **Important Notice:**  
 > Do **not modify** the root `CMakeLists.txt` file in your project.  
@@ -155,7 +168,7 @@ Use the provided build wrappers — they take two arguments:
   If you later want to **add back packages** you previously turned off (and which `cleanup.sh` removed), run the **template’s** update script from the `cpp-build-system` repository root, pointing it at your project path:  
   ```bash
   # from the cpp-build-system repo root
-  ./update_project.sh ~/dev/MyApp
+  ./update_project.sh ~/src/MyApp
   ```
   This will **restore all template-managed packages and scripts** (including `cleanup.sh`) into your project so you can re-enable dependencies via `config.sh` and rebuild.
 
diff --git a/clean_packages.cmd b/clean_packages.cmd
new file mode 100644
index 0000000..adb16d6
--- /dev/null
+++ b/clean_packages.cmd
@@ -0,0 +1,11 @@
+@echo off
+
+setlocal
+
+pushd "%~dp0"
+call src\scripts\setup_msys2.cmd
+
+call mingw64 -no-start ./clean_packages.sh
+popd
+
+endlocal
diff --git a/clean_packages.sh b/clean_packages.sh
new file mode 100755
index 0000000..153f0b6
--- /dev/null
+++ b/clean_packages.sh
@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+
+CURRENT_DIR=$(realpath "$0")
+CURRENT_DIR=$(dirname "${CURRENT_DIR}")
+
+pushd "${CURRENT_DIR}"
+
+mapfile -t FILE_LIST < <(find support/3rd_party/ -type f \( -name '*.gz' -o -name '*.bz2' -o -name '*.xz' -o -name '*.msi' -o -name '*.zip' \))
+
+for NAME in "${FILE_LIST[@]}"; do
+  echo "Removing ${NAME}"
+  rm -f "${NAME}"
+done
+
+mapfile -t FILE_LIST < <(find support/3rd_party/mingw64/ -type f \( -name '*.exe' \))
+for NAME in "${FILE_LIST[@]}"; do
+  echo "Removing ${NAME}"
+  rm -f "${NAME}"
+done
+
+popd
diff --git a/create_project.cmd b/create_project.cmd
index 1ba4267..279ecd4 100644
--- a/create_project.cmd
+++ b/create_project.cmd
@@ -2,7 +2,11 @@
 
 setlocal
 
-pushd "%~dp0%"
+pushd "%~dp0"
 call src\scripts\setup_msys2.cmd
-call mingw64 -no-start ./create_project.sh "%1" "%2"
+
+for /f "usebackq tokens=*" %%i in (`cygpath "%~2"`) do set ARG1=%%i
+call mingw64 -no-start ./create_project.sh "%~1" "%ARG1%"
 popd
+
+endlocal
diff --git a/create_project.sh b/create_project.sh
index 848101a..b6c88c8 100755
--- a/create_project.sh
+++ b/create_project.sh
@@ -18,6 +18,7 @@ create_versions_cmake
 
 process_file .jenkins_builds
 process_file .jenkins_macos
+process_file .jenkins_msys2
 process_file .nvimrc
 process_file CMakeLists.txt
 process_file config.sh
diff --git a/grab_packages.cmd b/grab_packages.cmd
new file mode 100644
index 0000000..585c745
--- /dev/null
+++ b/grab_packages.cmd
@@ -0,0 +1,11 @@
+@echo off
+
+setlocal
+
+pushd "%~dp0"
+call src\scripts\setup_msys2.cmd
+
+call mingw64 -no-start ./grab_packages.sh
+popd
+
+endlocal
diff --git a/grab_packages.sh b/grab_packages.sh
index f0afa07..39e1ea3 100755
--- a/grab_packages.sh
+++ b/grab_packages.sh
@@ -6,66 +6,34 @@ CURRENT_DIR=$(dirname "${CURRENT_DIR}")
 . "${CURRENT_DIR}/src/scripts/versions.sh"
 . "${CURRENT_DIR}/src/scripts/libraries.sh"
 
-function check_should_update() {
+function download_package() {
   local NAME=$1
   local ITEM_LIST=(${PROJECT_DOWNLOADS[${NAME}]//;/ })
-  if [ ! -f "${CURRENT_DIR}/support/${ITEM_LIST[2]}/${ITEM_LIST[1]}" ] ||
-    [ ! -f "${CURRENT_DIR}/support/${ITEM_LIST[2]}/${ITEM_LIST[1]}.sha256" ]; then
-    return 0
-  fi
-
-  return 1
-}
-
-function download_and_update_hash() {
-  local NAME=$1
-  local ITEM_LIST=(${PROJECT_DOWNLOADS[${NAME}]//;/ })
-  if [ ! -f "${CURRENT_DIR}/support/${ITEM_LIST[2]}/${ITEM_LIST[1]}" ] ||
-    [ ! -f "${CURRENT_DIR}/support/${ITEM_LIST[2]}/${ITEM_LIST[1]}.sha256" ]; then
-    local CLEANUP_LIST=(${PROJECT_CLEANUP[${NAME}]//:/ })
-    if [ "${NAME}" == "GTEST" ]; then
-      CLEANUP_LIST=(${PROJECT_CLEANUP["TESTING"]//:/ })
-    fi
-
-    if [ "${NAME}" != "BOOST" ] && [ "${NAME}" != "BOOST2" ] && [ "${CLEANUP_LIST[0]}" != "" ]; then
-      rm -r ${CURRENT_DIR}/support/${CLEANUP_LIST[0]}
-    fi
-
+  if [ ! -f "${CURRENT_DIR}/support/${ITEM_LIST[2]}/${ITEM_LIST[1]}" ]; then
     rm -f "${CURRENT_DIR}/support/${ITEM_LIST[2]}/${ITEM_LIST[1]}"
-    rm -f "${CURRENT_DIR}/support/${ITEM_LIST[2]}/${ITEM_LIST[1]}.sha256"
 
     if ! wget ${ITEM_LIST[0]} -O "${CURRENT_DIR}/support/${ITEM_LIST[2]}/${ITEM_LIST[1]}"; then
       echo "failed $NAME"
       rm -f "${CURRENT_DIR}/support/${ITEM_LIST[2]}/${ITEM_LIST[1]}"
       exit 1
     fi
-    pushd "${CURRENT_DIR}/support/${ITEM_LIST[2]}"
-    sha256sum ${ITEM_LIST[1]} >${ITEM_LIST[1]}.sha256
+
+    pushd "${CURRENT_DIR}/support/${ITEM_LIST[2]}/"
+    if ! sha256sum -c "${CURRENT_DIR}/support/${ITEM_LIST[2]}/${ITEM_LIST[1]}.sha256"; then
+      rm -f "${CURRENT_DIR}/support/${ITEM_LIST[2]}/${ITEM_LIST[1]}"
+      echo "failed sha256 validation: $NAME"
+      exit 1
+    fi
     popd
   fi
-
-  local HASH=$(cat support/${ITEM_LIST[2]}/${ITEM_LIST[1]}.sha256 | awk '{print $1}')
-  HASH_LIST+=("set(${NAME}_HASH ${HASH})")
 }
 
-function create_hashes_cmake() {
+function download_packages() {
   for NAME in "${!PROJECT_DOWNLOADS[@]}"; do
-    if [ "${NAME}" != "BOOST" ] && [ "${NAME}" != "BOOST2" ]; then
-      download_and_update_hash $NAME
-    fi
+    download_package $NAME
   done
 }
 
 pushd "${CURRENT_DIR}"
-HASH_LIST=()
-create_hashes_cmake
-
-if check_should_update BOOST || check_should_update BOOST2; then
-  rm -f support/3rd_party/boost_*
-fi
-
-download_and_update_hash BOOST
-download_and_update_hash BOOST2
-
-(printf "%s\n" "${HASH_LIST[@]}" | sort) >${CURRENT_DIR}/cmake/hashes.cmake
+download_packages
 popd
diff --git a/scripts/common.sh b/scripts/common.sh
index e773ae6..d0ca400 100755
--- a/scripts/common.sh
+++ b/scripts/common.sh
@@ -52,7 +52,7 @@ elif [ "${WITH_TYPE}" == "7" ]; then
 fi
 
 if [ "${BUILD_ARCH}" != "" ]; then
-  NAME=${NAME}_libevent_${BUILD_ARCH}
+  NAME=${NAME}_${BUILD_ARCH}
 fi
 
 rm -rf "${TEST_DIR}/${NAME}"
diff --git a/scripts/create_packages.sh b/scripts/create_packages.sh
new file mode 100755
index 0000000..62b4159
--- /dev/null
+++ b/scripts/create_packages.sh
@@ -0,0 +1,74 @@
+#!/usr/bin/env bash
+
+SCRIPTS_DIR=$(dirname "$0")
+SCRIPTS_DIR=$(realpath ${SCRIPTS_DIR})
+
+CURRENT_DIR=${SCRIPTS_DIR}/..
+CURRENT_DIR=$(realpath "${CURRENT_DIR}")
+
+. "${CURRENT_DIR}/src/scripts/versions.sh"
+. "${CURRENT_DIR}/src/scripts/libraries.sh"
+
+function check_should_update() {
+  local NAME=$1
+  local ITEM_LIST=(${PROJECT_DOWNLOADS[${NAME}]//;/ })
+  if [ ! -f "${CURRENT_DIR}/support/${ITEM_LIST[2]}/${ITEM_LIST[1]}" ] ||
+    [ ! -f "${CURRENT_DIR}/support/${ITEM_LIST[2]}/${ITEM_LIST[1]}.sha256" ]; then
+    return 0
+  fi
+
+  return 1
+}
+
+function download_and_update_hash() {
+  local NAME=$1
+  local ITEM_LIST=(${PROJECT_DOWNLOADS[${NAME}]//;/ })
+  if [ ! -f "${CURRENT_DIR}/support/${ITEM_LIST[2]}/${ITEM_LIST[1]}" ] ||
+    [ ! -f "${CURRENT_DIR}/support/${ITEM_LIST[2]}/${ITEM_LIST[1]}.sha256" ]; then
+    local CLEANUP_LIST=(${PROJECT_CLEANUP[${NAME}]//:/ })
+    if [ "${NAME}" == "GTEST" ]; then
+      CLEANUP_LIST=(${PROJECT_CLEANUP["TESTING"]//:/ })
+    fi
+
+    if [ "${NAME}" != "BOOST" ] && [ "${NAME}" != "BOOST2" ] && [ "${CLEANUP_LIST[0]}" != "" ]; then
+      rm -r ${CURRENT_DIR}/support/${CLEANUP_LIST[0]}
+    fi
+
+    rm -f "${CURRENT_DIR}/support/${ITEM_LIST[2]}/${ITEM_LIST[1]}"
+    rm -f "${CURRENT_DIR}/support/${ITEM_LIST[2]}/${ITEM_LIST[1]}.sha256"
+
+    if ! wget ${ITEM_LIST[0]} -O "${CURRENT_DIR}/support/${ITEM_LIST[2]}/${ITEM_LIST[1]}"; then
+      echo "failed $NAME"
+      rm -f "${CURRENT_DIR}/support/${ITEM_LIST[2]}/${ITEM_LIST[1]}"
+      exit 1
+    fi
+    pushd "${CURRENT_DIR}/support/${ITEM_LIST[2]}"
+    sha256sum ${ITEM_LIST[1]} >${ITEM_LIST[1]}.sha256
+    popd
+  fi
+
+  local HASH=$(cat support/${ITEM_LIST[2]}/${ITEM_LIST[1]}.sha256 | awk '{print $1}')
+  HASH_LIST+=("set(${NAME}_HASH ${HASH})")
+}
+
+function create_hashes_cmake() {
+  for NAME in "${!PROJECT_DOWNLOADS[@]}"; do
+    if [ "${NAME}" != "BOOST" ] && [ "${NAME}" != "BOOST2" ]; then
+      download_and_update_hash $NAME
+    fi
+  done
+}
+
+pushd "${CURRENT_DIR}"
+HASH_LIST=()
+create_hashes_cmake
+
+if check_should_update BOOST || check_should_update BOOST2; then
+  rm -f support/3rd_party/boost_*
+fi
+
+download_and_update_hash BOOST
+download_and_update_hash BOOST2
+
+(printf "%s\n" "${HASH_LIST[@]}" | sort) >${CURRENT_DIR}/cmake/hashes.cmake
+popd
diff --git a/scripts/test_msys2.cmd b/scripts/test_msys2.cmd
new file mode 100755
index 0000000..c462660
--- /dev/null
+++ b/scripts/test_msys2.cmd
@@ -0,0 +1,82 @@
+@echo off
+
+setlocal EnableExtensions
+
+set "SED=sed"
+
+set "SCRIPTS_DIR=%~dp0"
+pushd "%SCRIPTS_DIR%"
+set "SCRIPTS_DIR=%CD%"
+popd
+
+set "SOURCE_DIR=%~dp0.."
+pushd "%SOURCE_DIR%"
+set "SOURCE_DIR=%CD%"
+popd
+
+set "TEST_DIR=%SOURCE_DIR%\build"
+
+set "PLATFORM=msys2"
+set "BUILD_TYPE=%1"
+set "WITH_TYPE=%2"
+
+if /I not "%BUILD_TYPE%"=="shared" if /I not "%BUILD_TYPE%"=="static" (
+  call :ERROR_EXIT "Must specify 'shared' or 'static'." 1
+)
+
+if not defined TEST_DIR (
+  call :ERROR_EXIT "TEST_DIR is not set." 1
+)
+
+if not exist "%TEST_DIR%" mkdir "%TEST_DIR%"
+
+set "NAME=%BUILD_TYPE%"
+if "%WITH_TYPE%"=="1" set "NAME=%NAME%_crypto"
+if "%WITH_TYPE%"=="2" set "NAME=%NAME%_dsm"
+if "%WITH_TYPE%"=="3" set "NAME=%NAME%_sqlite"
+if "%WITH_TYPE%"=="4" set "NAME=%NAME%_errors_v1"
+if "%WITH_TYPE%"=="5" set "NAME=%NAME%_fmt"
+if "%WITH_TYPE%"=="6" set "NAME=%NAME%_libevent"
+if "%WITH_TYPE%"=="7" set "NAME=%NAME%_crypto_no_boost"
+
+if exist "%TEST_DIR%\%NAME%\" rd /s /q "%TEST_DIR%\%NAME%"
+
+pushd "%SOURCE_DIR%"
+call ".\create_project.cmd" "%NAME%" "%TEST_DIR%" || (
+  call :ERROR_EXIT "Failed to create %PLATFORM% project." 2
+)
+popd
+
+pushd "%TEST_DIR%\%NAME%"
+if "%WITH_TYPE%"=="1" (
+  %SED% -i "s/PROJECT_ENABLE_LIBSODIUM=OFF/PROJECT_ENABLE_LIBSODIUM=ON/g" ".\config.sh"
+  %SED% -i "s/PROJECT_ENABLE_BOOST=OFF/PROJECT_ENABLE_BOOST=ON/g"         ".\config.sh"
+  %SED% -i "s/PROJECT_ENABLE_JSON=OFF/PROJECT_ENABLE_JSON=ON/g"           ".\config.sh"
+)
+if "%WITH_TYPE%"=="2" %SED% -i "s/PROJECT_ENABLE_LIBDSM=OFF/PROJECT_ENABLE_LIBDSM=ON/g" ".\config.sh"
+if "%WITH_TYPE%"=="3" %SED% -i "s/PROJECT_ENABLE_SQLITE=OFF/PROJECT_ENABLE_SQLITE=ON/g" ".\config.sh"
+if "%WITH_TYPE%"=="4" %SED% -i "s/PROJECT_ENABLE_V2_ERRORS=ON/PROJECT_ENABLE_V2_ERRORS=OFF/g" ".\config.sh"
+if "%WITH_TYPE%"=="5" %SED% -i "s/PROJECT_ENABLE_FMT=OFF/PROJECT_ENABLE_FMT=ON/g" ".\config.sh"
+if "%WITH_TYPE%"=="6" %SED% -i "s/PROJECT_ENABLE_LIBEVENT=OFF/PROJECT_ENABLE_LIBEVENT=ON/g" ".\config.sh"
+if "%WITH_TYPE%"=="7" %SED% -i "s/PROJECT_ENABLE_LIBSODIUM=OFF/PROJECT_ENABLE_LIBSODIUM=ON/g" ".\config.sh"
+
+if /I "%BUILD_TYPE%"=="shared" (
+  %SED% -i "s/PROJECT_STATIC_LINK=ON/PROJECT_STATIC_LINK=OFF/g" ".\config.sh"
+)
+
+call .\scripts\make_win32.cmd || (
+  call :ERROR_EXIT "build %PLATFORM% failed." 3
+)
+
+call .\scripts\run_tests.cmd || (
+  call :ERROR_EXIT "testing %PLATFORM% failed." 3
+)
+popd
+
+if exist "%TEST_DIR%\%NAME%\" rd /s /q "%TEST_DIR%\%NAME%"
+
+exit 0
+
+:ERROR_EXIT
+echo %1
+exit %2
diff --git a/src/.jenkins_msys2 b/src/.jenkins_msys2
new file mode 100644
index 0000000..87d6546
--- /dev/null
+++ b/src/.jenkins_msys2
@@ -0,0 +1,77 @@
+#!groovy
+
+pipeline {
+  agent none
+
+  environment {
+    PROJECT_TEST_CONFIG_DIR = "c:\\.ci\\%PROJECT_NAME%\\test"
+  }
+
+  options {
+    disableConcurrentBuilds()
+    skipDefaultCheckout()
+    timestamps()
+  }
+
+  stages {
+    // stage('Build • Test • Deliver')
+    stage('Build • Test') {
+      agent any
+      stages {
+        stage('Checkout') {
+          steps {
+            script {
+              int maxAttempts = 6
+              int baseDelay   = 10
+              for (int attempt = 1; attempt <= maxAttempts; attempt++) {
+                try {
+                  checkout scm
+                  break
+                } catch (err) {
+                  if (attempt == maxAttempts) { throw err }
+                  int waitSec = baseDelay * (1 << (attempt - 1))
+                  echo "Checkout failed (attempt ${attempt}/${maxAttempts}). Waiting ${waitSec}s before retry..."
+                  sleep time: waitSec, unit: 'SECONDS'
+                }
+              }
+            }
+          }
+        }
+
+        stage('msys2_x86_64') {
+          steps { script { retryWithBackoff(2, 5) { bat 'scripts\\make_win32.cmd x86_64' } } }
+        }
+
+        stage('test') {
+          steps {
+            script {
+              retryWithBackoff(2, 5) { bat 'scripts\\run_tests.cmd x86_64' }
+            }
+          }
+        }
+
+        // stage('deliver') {
+        //   steps {
+        //     script {
+        //       retryWithBackoff(3, 10) { bat 'scripts\\deliver.cmd C:\\deliver\\%PROJECT_NAME% "" x86_64' }
+        //     }
+        //   }
+        // }
+      }
+    }
+  }
+}
+
+def retryWithBackoff(int maxAttempts, int baseDelaySeconds, Closure body) {
+  for (int attempt = 1; attempt <= maxAttempts; attempt++) {
+    try {
+      body()
+      return
+    } catch (err) {
+      if (attempt == maxAttempts) { throw err }
+      int waitSec = baseDelaySeconds * (1 << (attempt - 1))
+      echo "Step failed (attempt ${attempt}/${maxAttempts}). Waiting ${waitSec}s before retry..."
+      sleep time: waitSec, unit: 'SECONDS'
+    }
+  }
+}
diff --git a/src/scripts/cleanup.cmd b/src/scripts/cleanup.cmd
index 71111cb..fa6f784 100644
--- a/src/scripts/cleanup.cmd
+++ b/src/scripts/cleanup.cmd
@@ -6,6 +6,6 @@ set ARG1=%~1
 set ARG2=%~2
 set ARG3=%~3
 
-pushd "%~dp0%"
+pushd "%~dp0"
   call mingw64 -no-start ./cleanup.sh "%ARG1%" "%ARG2%" "%ARG3%" 1 0 
 popd
diff --git a/src/scripts/deliver.cmd b/src/scripts/deliver.cmd
index 9fe7bf0..c7dda96 100644
--- a/src/scripts/deliver.cmd
+++ b/src/scripts/deliver.cmd
@@ -8,6 +8,6 @@ set ARG1=%~3
 set ARG2=%~4
 set ARG3=%~5
 
-pushd "%~dp0%"
+pushd "%~dp0"
   call mingw64 -no-start ./deliver.sh "%DEST%" "%DIST%" "%ARG1%" "%ARG2%" "%ARG3%" 1 0 || exit 1
 popd
diff --git a/src/scripts/deliver.sh b/src/scripts/deliver.sh
index 4d54f61..c72f5f2 100755
--- a/src/scripts/deliver.sh
+++ b/src/scripts/deliver.sh
@@ -7,6 +7,11 @@ PROJECT_SCRIPTS_DIR=$(realpath "$0")
 PROJECT_SCRIPTS_DIR=$(dirname "${PROJECT_SCRIPTS_DIR}")
 . "${PROJECT_SCRIPTS_DIR}/env.sh" "$3" "$4" "$5" "$6" "$7"
 
+COPY_OPS=-f
+if [ "${PROJECT_IS_DARWIN}" == "1" ]; then
+  COPY_OPS="${COPY_OPS} -X"
+fi
+
 function error_exit() {
   echo $1
   exit $2
@@ -38,13 +43,16 @@ BRANCH=$(git branch --show-current)
 RELEASE=$(grep PROJECT_RELEASE_ITER= ./config.sh | ${SED} s/PROJECT_RELEASE_ITER=//g)
 popd
 
-if [ "${BRANCH}" == "master" ] || [ "${BRANCH}" == "alpha" ] ||
-  [ "${BRANCH}" == "main" ] || [ "${BRANCH}" == "release" ] ||
-  [ "${BRANCH}" == "beta" ] || [ "${BRANCH}" == "rc" ]; then
-  DEST_DIR=${DEST_DIR}/${RELEASE}
-elif [[ ${BRANCH} = *'-alpha-'* ]] || [[ ${BRANCH} = *'-beta-'* ]] ||
-  [[ ${BRANCH} = *'-rc-'* ]] || [[ ${BRANCH} = *'-release-'* ]]; then
-  DEST_DIR=${DEST_DIR}/nightly
+if [[ "${BRANCH}" =~ ^(master|main|release)$ ]] ||
+  [[ "${BRANCH}" =~ ^(alpha|beta|rc)(\.[0-9]+)?$ ]]; then
+  DEST_DIR="${DEST_DIR}/$([[ "${BRANCH}" =~ ^(master|main|release)$ ]] &&
+    printf '%s' "${RELEASE}" ||
+    printf '%s' "${BRANCH%%.*}")"
+elif [[ "${BRANCH}" == *"-alpha-"* ]] || [[ "${BRANCH}" == *"-beta-"* ]] ||
+  [[ "${BRANCH}" == *"-rc-"* ]] || [[ "${BRANCH}" == *"-release-"* ]] ||
+  [[ "${BRANCH}" == *"-alpha."* ]] || [[ "${BRANCH}" == *"-beta."* ]] ||
+  [[ "${BRANCH}" == *"-rc."* ]]; then
+  DEST_DIR="${DEST_DIR}/nightly"
 else
   error_exit "skipping ${PROJECT_FILE_PART}" 0
 fi
@@ -62,39 +70,39 @@ if [ "${PROJECT_PRIVATE_KEY}" != "" ] && [ ! -f "./${PROJECT_OUT_FILE}.sig" ]; t
   error_exit "failed to find file: ${PROJECT_OUT_FILE}.sig" 1
 fi
 
-cp -f ./${PROJECT_OUT_FILE} ${DEST_DIR} ||
+cp ${COPY_OPS} ./${PROJECT_OUT_FILE} ${DEST_DIR} ||
   error_exit "failed to deliver file: ${PROJECT_OUT_FILE}" 1
 
-cp -f ./${PROJECT_OUT_FILE}.sha256 ${DEST_DIR} ||
+cp ${COPY_OPS} ./${PROJECT_OUT_FILE}.sha256 ${DEST_DIR} ||
   error_exit "failed to deliver file: ${PROJECT_OUT_FILE}.sha256" 1
 
 if [ "${PROJECT_PRIVATE_KEY}" != "" ]; then
-  cp -f ./${PROJECT_OUT_FILE}.sig ${DEST_DIR} ||
+  cp ${COPY_OPS} ./${PROJECT_OUT_FILE}.sig ${DEST_DIR} ||
     error_exit "failed to deliver file: ${PROJECT_OUT_FILE}.sig" 1
 fi
 
 if [ "${PROJECT_IS_MINGW}" == "1" ] && [ -f "${PROJECT_DIST_DIR}/${PROJECT_FILE_PART}_setup.exe" ]; then
-  cp -f "${PROJECT_DIST_DIR}/${PROJECT_FILE_PART}_setup.exe" ${DEST_DIR} ||
+  cp ${COPY_OPS} "${PROJECT_DIST_DIR}/${PROJECT_FILE_PART}_setup.exe" ${DEST_DIR} ||
     error_exit "failed to deliver file: ${PROJECT_DIST_DIR}/${PROJECT_FILE_PART}" 1
 
-  cp -f "${PROJECT_DIST_DIR}/${PROJECT_FILE_PART}_setup.exe.sha256" ${DEST_DIR} ||
+  cp ${COPY_OPS} "${PROJECT_DIST_DIR}/${PROJECT_FILE_PART}_setup.exe.sha256" ${DEST_DIR} ||
     error_exit "failed to deliver file: ${PROJECT_DIST_DIR}/${PROJECT_FILE_PART}_setup.exe.sha256" 1
 
   if [ "${PROJECT_PRIVATE_KEY}" != "" ]; then
-    cp -f "${PROJECT_DIST_DIR}/${PROJECT_FILE_PART}_setup.exe.sig" ${DEST_DIR} ||
+    cp ${COPY_OPS} "${PROJECT_DIST_DIR}/${PROJECT_FILE_PART}_setup.exe.sig" ${DEST_DIR} ||
       error_exit "failed to deliver file: ${PROJECT_DIST_DIR}/${PROJECT_FILE_PART}_setup.exe.sig" 1
   fi
 fi
 
 if [ "${PROJECT_IS_DARWIN}" == "1" ] && [ -f "${PROJECT_DIST_DIR}/${PROJECT_FILE_PART}.dmg" ]; then
-  cp -f -X "${PROJECT_DIST_DIR}/${PROJECT_FILE_PART}.dmg" ${DEST_DIR} ||
+  cp ${COPY_OPS} "${PROJECT_DIST_DIR}/${PROJECT_FILE_PART}.dmg" ${DEST_DIR} ||
     error_exit "failed to deliver file: ${PROJECT_DIST_DIR}/${PROJECT_FILE_PART}.dmg" 1
 
-  cp -f -X "${PROJECT_DIST_DIR}/${PROJECT_FILE_PART}.dmg.sha256" ${DEST_DIR} ||
+  cp ${COPY_OPS} "${PROJECT_DIST_DIR}/${PROJECT_FILE_PART}.dmg.sha256" ${DEST_DIR} ||
     error_exit "failed to deliver file: ${PROJECT_DIST_DIR}/${PROJECT_FILE_PART}.dmg.sha256" 1
 
   if [ "${PROJECT_PRIVATE_KEY}" != "" ]; then
-    cp -f -X "${PROJECT_DIST_DIR}/${PROJECT_FILE_PART}.dmg.sig" ${DEST_DIR} ||
+    cp ${COPY_OPS} "${PROJECT_DIST_DIR}/${PROJECT_FILE_PART}.dmg.sig" ${DEST_DIR} ||
       error_exit "failed to deliver file: ${PROJECT_DIST_DIR}/${PROJECT_FILE_PART}.dmg.sig" 1
   fi
 fi
diff --git a/src/scripts/info.cmd b/src/scripts/info.cmd
index a560b9d..4510008 100644
--- a/src/scripts/info.cmd
+++ b/src/scripts/info.cmd
@@ -6,7 +6,7 @@ set ARG1=%~1
 set ARG2=%~2
 set ARG3=%~3
 
-pushd "%~dp0%"
+pushd "%~dp0"
   call mingw64 -no-start ./info.sh "%ARG1%" "%ARG2%" "%ARG3%" 1 0 
 popd
 
diff --git a/src/scripts/make_package.cmd b/src/scripts/make_package.cmd
index 1037ea3..6f215fe 100644
--- a/src/scripts/make_package.cmd
+++ b/src/scripts/make_package.cmd
@@ -6,6 +6,6 @@ set ARG1=%~1
 set ARG2=%~2
 set ARG3=%~3
 
-pushd "%~dp0%"
+pushd "%~dp0"
   call mingw64 -no-start ./make_package.sh "%ARG1%" "%ARG2%" "%ARG3%" 1 0 || exit 1
 popd
diff --git a/src/scripts/make_win32.cmd b/src/scripts/make_win32.cmd
index 038141f..2a7ef7e 100644
--- a/src/scripts/make_win32.cmd
+++ b/src/scripts/make_win32.cmd
@@ -6,7 +6,7 @@ set ARG1=%~1
 set ARG2=%~2
 set ARG3=%~3
 
-pushd "%~dp0%"
+pushd "%~dp0"
   call setup_msys2.cmd "%ARG1%" "%ARG2%" "%ARG3%"
   if exist "cleanup.cmd" (
     call cleanup.cmd "%ARG1%" "%ARG2%" "%ARG3%" 1 0
diff --git a/src/scripts/run_tests.cmd b/src/scripts/run_tests.cmd
index 53e9f54..fd809a0 100644
--- a/src/scripts/run_tests.cmd
+++ b/src/scripts/run_tests.cmd
@@ -6,7 +6,7 @@ set ARG1=%~1
 set ARG2=%~2
 set ARG3=%~3
 
-pushd "%~dp0%"
+pushd "%~dp0"
   call mingw64 -no-start ./run_tests.sh "%ARG1%" "%ARG2%" "%ARG3%" 1 0 
 popd
 
diff --git a/src/scripts/setup_msys2.cmd b/src/scripts/setup_msys2.cmd
index ce3c466..b13165b 100644
--- a/src/scripts/setup_msys2.cmd
+++ b/src/scripts/setup_msys2.cmd
@@ -6,7 +6,7 @@ set ARG1=%~1
 set ARG2=%~2
 set ARG3=%~3
 
-pushd "%~dp0%"
+pushd "%~dp0"
   call mingw64 -no-start ./setup_msys2.sh "%ARG1%" "%ARG2%" "%ARG3%" 1 0
   call mingw64 -no-start ./setup_msys2.sh "%ARG1%" "%ARG2%" "%ARG3%" 1 0 
 popd
diff --git a/src/scripts/setup_msys2.sh b/src/scripts/setup_msys2.sh
index bc1fab0..499bf96 100755
--- a/src/scripts/setup_msys2.sh
+++ b/src/scripts/setup_msys2.sh
@@ -14,6 +14,7 @@ PROJECT_MSYS2_PACKAGE_LIST+=(
   mingw64/mingw-w64-x86_64-diffutils
   mingw64/mingw-w64-x86_64-gcc
   mingw64/mingw-w64-x86_64-gdb
+  mingw64/mingw-w64-x86_64-git-lfs
   mingw64/mingw-w64-x86_64-icu
   mingw64/mingw-w64-x86_64-make
   mingw64/mingw-w64-x86_64-mesa
diff --git a/support/3rd_party/CLI11-2.5.0.tar.gz b/support/3rd_party/CLI11-2.5.0.tar.gz
deleted file mode 100644
index d7979c1..0000000
--- a/support/3rd_party/CLI11-2.5.0.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
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-size 361527
diff --git a/support/3rd_party/SFML-2.6.2.tar.gz b/support/3rd_party/SFML-2.6.2.tar.gz
deleted file mode 100644
index 42af888..0000000
--- a/support/3rd_party/SFML-2.6.2.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:15ff4d608a018f287c6a885db0a2da86ea389e516d2323629e4d4407a7ce047f
-size 28624288
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deleted file mode 100644
index d288c0f..0000000
--- a/support/3rd_party/boost_1_76_0.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
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deleted file mode 100644
index 79022d4..0000000
--- a/support/3rd_party/boost_1_89_0.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
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deleted file mode 100644
index 43aca51..0000000
--- a/support/3rd_party/cpp-httplib-0.26.0.tar.gz
+++ /dev/null
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deleted file mode 100644
index ab8a07d..0000000
--- a/support/3rd_party/curl-8.16.0.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
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deleted file mode 100644
index f8f7202..0000000
--- a/support/3rd_party/cxxopts-v3.3.1.tar.gz
+++ /dev/null
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deleted file mode 100644
index 27179d4..0000000
--- a/support/3rd_party/dtl-v2.01.tar.gz
+++ /dev/null
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deleted file mode 100644
index 3a8aa6d..0000000
--- a/support/3rd_party/flac-1.5.0.tar.gz
+++ /dev/null
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deleted file mode 100644
index 5f13b64..0000000
--- a/support/3rd_party/fmt-12.0.0.tar.gz
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deleted file mode 100644
index 36d5b73..0000000
--- a/support/3rd_party/fontconfig-2.16.0.tar.xz
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deleted file mode 100644
index da7b5da..0000000
--- a/support/3rd_party/freetype-2.14.1.tar.gz
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deleted file mode 100644
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deleted file mode 100644
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--- a/support/3rd_party/json-3.12.0.tar.gz
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deleted file mode 100644
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deleted file mode 100644
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deleted file mode 100644
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deleted file mode 100644
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deleted file mode 100644
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deleted file mode 100644
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deleted file mode 100644
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deleted file mode 100644
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deleted file mode 100644
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diff --git a/support/3rd_party/wxWidgets-3.3.1.tar.bz2 b/support/3rd_party/wxWidgets-3.3.1.tar.bz2
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diff --git a/update_project.cmd b/update_project.cmd
index 10b6e4b..410d3b4 100644
--- a/update_project.cmd
+++ b/update_project.cmd
@@ -2,6 +2,9 @@
 
 setlocal
 
-pushd "%~dp0%"
-call mingw64 -no-start ./update_project.sh "%1" "%2"
+pushd "%~dp0"
+for /f "usebackq tokens=*" %%i in (`cygpath "%~2"`) do set ARG1=%%i
+call mingw64 -no-start ./update_project.sh "%~1" "%ARG1%"
 popd
+
+endlocal