My CMake build preparation cannot find a package configuration file
(run below with few of its --trace-expand values)

cmake -S . -B ./build/ -DCMAKE_BUILD_TYPE=Release

/workspaces/template-cpp/CMakeLists.txt(5):  set(CMAKE_CXX_STANDARD 17 )
/workspaces/template-cpp/CMakeLists.txt(9):  set(CMAKE_MODULE_PATH ./build/Release/generators/ )
/workspaces/template-cpp/CMakeLists.txt(16):  include_directories(./src )
/workspaces/template-cpp/CMakeLists.txt(17):  add_subdirectory(src )
/workspaces/template-cpp/src/CMakeLists.txt(3):  find_package(libpqxx REQUIRED )
CMake Error at src/CMakeLists.txt:3 (find_package):
  By not providing "Findlibpqxx.cmake" in CMAKE_MODULE_PATH this project has
  asked CMake to find a package configuration file provided by "libpqxx", but
  CMake did not find one.

  Could not find a package configuration file provided by "libpqxx" with any
  of the following names:

    libpqxxConfig.cmake
    libpqxx-config.cmake

  Add the installation prefix of "libpqxx" to CMAKE_PREFIX_PATH or set
  "libpqxx_DIR" to a directory containing one of the above files.  If
  "libpqxx" provides a separate development package or SDK, be sure it has
  been installed.

But the file is where, I think, it is expected:

$ ls ./build/Release/generators/libpqxx-config.cmake
./build/Release/generators/libpqxx-config.cmake

Even changing CMAKE_MODULE_PATH for an absolute path /workspaces/template-cpp/build/Release/generators/ is unsuccessful.

What have I misconfigured? Am I setting wrong variables to run it?