revert to module mode from config mode.

The error you're encountering occurs because BoostConfig.cmake is trying to find the boost_headers package, but it cannot locate it. This usually happens when Boost is installed in a way that doesn’t fully support the CMake config mode, or when the BoostConfig.cmake file refers to components that haven't been properly installed or configured.

CMakeLists.txt

@@ -6,10 +6,15 @@ set(CMAKE_POSITION_INDEPENDENT_CODE ON)
 
 # https://cmake.org/cmake/help/latest/policy/CMP0167.html
 # https://chatgpt.com/c/6715b494-6884-8005-9a9b-870e72427fe4
-# cmake_policy(SET CMP0167 OLD)
-# Need to update the boost version according to https://community.chocolatey.org/packages/boost-msvc-14.3#versionhistory
-# set(BOOST_ROOT C:/local/boost_1_86_0)
-find_package(Boost CONFIG)
+cmake_policy(SET CMP0167 OLD)
+# Platform-specific setting for Boost on Windows
+if(WIN32)
+    # Need to update the boost version according to https://community.chocolatey.org/packages/boost-msvc-14.3#versionhistory
+    set(BOOST_ROOT C:/local/boost_1_86_0)
+    # set(Boost_DIR C:/local/boost_1_86_0/tools/boost_install)
+endif()
+# find_package(Boost CONFIG REQUIRED)
+find_package(Boost REQUIRED COMPONENTS)
 
 file(GLOB_RECURSE ciphey_core_SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/src/*.cpp)
 add_library(ciphey_core ${ciphey_core_SOURCES})