diff --git a/.gitignore b/.gitignore
index 30fbd8f48..01095f2cf 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,12 +1,22 @@
-*.e
-*.o
-*.so
+# Python
 __pycache__
 .python-version
-/build*
-.cache/
+
+# CMake
+CMakeUserPresets.json
+
+# Visual Studio Code
 .vscode/
+
+# this project
+build/
 Testing/
+
+# need to be cleaned up
+.cache/
 *.swp
 *.swo
 dev_test
+*.e
+*.o
+*.so
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9e2111576..d99fc2fc2 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -72,20 +72,106 @@ FILE(APPEND "${CMAKE_BINARY_DIR}/vinfo.tmp" "${CYTNX_VARIANT_INFO}" "")
 # #####################################################################
 # ## COMMAND LINE OPTIONS
 # #####################################################################
-option(BACKEND_TORCH "Build Cytnx with pytorch backend (requires pytorch)" OFF)
 
-# # the following are only referenced when BACKEND_TORCH=OFF
-option(USE_CUDA "Build using Nvidia CUDA for GPU library" OFF)
-option(BUILD_PYTHON "Build Python wrapper" ON)
-option(USE_MKL "Build using MKL" ON)
-option(BUILD_DOC "Build API docuemntation" OFF)
-option(USE_HPTT "Build Cytnx with HPTT" OFF)
+# -----------------------------------------------------------------------------
+# :Function: require_dependent_variable
+#
+# :Description:
+#   Conditionally creates or validates a cache variable based on a set of
+#   dependency conditions.
+#
+#   The dependency conditions are provided in the *depends* parameter as a
+#   semicolon-separated list. The cache variable is required only when all
+#   these conditions evaluate to true.
+#
+# :Parameters:
+#   - **variable**: The name of the variable to set.
+#   - **default**:  The default value for the variable.
+#   - **type**:     The cache type (e.g., STRING, PATH) for the variable.
+#   - **help**:     A descriptive help message for the variable.
+#   - **depends**:  A semicolon-separated list of dependency conditions.
+#                  The variable is required only if all conditions are met.
+#
+# :Behavior:
+#   - Evaluates each dependency condition; if any condition evaluates to false,
+#     will not update the variable.
+#   - If all conditions are met and the variable is not already defined, the
+#     variable is set to the provided default value in the cache using the
+#     specified type and help message.
+#   - If the variable’s value is empty, a fatal error is raised.
+#
+# :Examples:
+#
+#   .. code-block:: cmake
+#
+#      require_dependent_variable(
+#        PACKAGE_INCLUDE_DIRS
+#        "$ENV{PACKAGE_INCLUDE_DIRS}"
+#        PATH
+#        "Path to the include directory of the package."
+#        "USE_A AND (USE_B OR USE_C);USE_D"
+#      )
+#
+#   In this example, if "USE_A AND (USE_B OR USE_C);USE_D" is true, then
+#   PACKAGE_INCLUDE_DIRS must be defined and non-empty. Otherwise, a fatal error
+#   is raised.
+# -----------------------------------------------------------------------------
+function(require_dependent_variable variable default type help depends)
+  # Evaluate each dependency condition; if any condition is false, exit early.
+  # This is copied from the source code of `cmake_dependent_option` function.
+  set(IS_NOT_AVAILABLE 0)
+  foreach(d ${depends})
+    cmake_language(EVAL CODE "
+      if (${d})
+      else()
+        set(IS_NOT_AVAILABLE 1)
+      endif()"
+    )
+  endforeach()
+  if(IS_NOT_AVAILABLE)
+    return()
+  endif()
+
+  if(NOT DEFINED ${variable})
+    set(${variable} "${default}" CACHE ${type} "${help}")
+  endif()
+
+  if("${${variable}}" STREQUAL "")
+    message(FATAL_ERROR "\
+Error: Cache variable '${variable}' is required under dependency conditions \
+(${depends}) but its value is empty.
+${help}
+")
+  endif()
+endfunction()
+
+include(CMakeDependentOption)
+
+set(CMAKE_INSTALL_PREFIX "/usr/local/cytnx" CACHE PATH "the destination path for installation")
+option(BUILD_PYTHON "Build Python API. Require Python and pybind11 installed." ON)
+option(BACKEND_TORCH "Use PyTorch as a backend container for tensors." OFF)
+cmake_dependent_option(USE_MKL "Use MKL as a BLAS provider otherwise use OpenBLAS." OFF "NOT BACKEND_TORCH" OFF)
+cmake_dependent_option(USE_HPTT "Use HPTT library to accelrate tensor transpose." OFF "NOT BACKEND_TORCH" OFF)
+cmake_dependent_option(HPTT_ENABLE_FINE_TUNE "Enable fine tune HPTT for the native hardware." OFF "USE_HPTT" OFF)
+# TODO: use variable instead of option to handle HPTT variant.
+cmake_dependent_option(HPTT_ENABLE_ARM "HPTT variant" OFF "USE_HPTT;NOT HPTT_ENABLE_AVX; NOT HPTT_ENABLE_IBM" OFF)
+cmake_dependent_option(HPTT_ENABLE_AVX "HPTT variant" OFF "USE_HPTT;NOT HPTT_ENABLE_ARM; NOT HPTT_ENABLE_IBM" OFF)
+cmake_dependent_option(HPTT_ENABLE_IBM "HPTT variant" OFF "USE_HPTT;NOT HPTT_ENABLE_ARM; NOT HPTT_ENABLE_AVX" OFF)
+cmake_dependent_option(USE_CUDA "Enable CUDA support." OFF "NOT BACKEND_TORCH" OFF)
+cmake_dependent_option(USE_CUTT "Use CUTT library to accelrate tensor transpose." OFF "USE_CUDA" OFF)
+cmake_dependent_option(CUTT_ENABLE_FINE_TUNE "Enable CUTT fine tune for the native hardware." OFF "USE_CUTT" OFF)
+cmake_dependent_option(USE_CUTENSOR "Enable cuTENSOR." OFF "USE_CUDA" OFF)
+require_dependent_variable(CUTENSOR_ROOT "$ENV{CUTENSOR_ROOT}" PATH
+"Please provide CUTENSOR_ROOT in the environment variables.
+CUTENSOR_ROOT is the path to the folder of cuTENSOR." "USE_CUTENSOR")
+cmake_dependent_option(USE_CUQUANTUM "Enable cuQuantum." OFF "USE_CUDA" OFF)
+require_dependent_variable(CUQUANTUM_ROOT "$ENV{CUQUANTUM_ROOT}" PATH
+"Please provide CUQUANTUM_ROOT in the environment variables.
+CUQUANTUM_ROOT is the path to the folder of cuQuantum." "USE_CUQUANTUM")
 option(RUN_TESTS "Run Cytnx tests" OFF)
 option(RUN_BENCHMARKS "Run Cytnx benchmarks" OFF)
-option(USE_CUTT "Build Cytnx with CUTT" OFF)
-option(USE_CUTENSOR "Build Cytnx with CuTensor (requires CUDA)" ON)
-option(USE_CUQUANTUM "Build Cytnx with CUQuantum (requires CUDA)" ON)
-
+option(USE_DEBUG "Build in debug more and enable address sanitizer" OFF)
+option(BUILD_DOC "Build API docuemntation" OFF)
 option(DEV_MODE "Build testing dev_test.cpp with cytnx" OFF)
 
 # #####################################################################
diff --git a/CMakePresets.json b/CMakePresets.json
new file mode 100644
index 000000000..a1934a102
--- /dev/null
+++ b/CMakePresets.json
@@ -0,0 +1,170 @@
+{
+  "version": 6,
+  "cmakeMinimumRequired": {
+    "major": 3,
+    "minor": 25,
+    "patch": 0
+  },
+  "configurePresets": [
+    {
+      "name": "default",
+      "displayName": "openblas-cpu",
+      "description": "OpenBLAS as the BLAS vendor with CPU-only support.",
+      "binaryDir": "${sourceDir}/build/${presetName}",
+      "cacheVariables": {
+        "CMAKE_BUILD_TYPE": "Release",
+        "CMAKE_INSTALL_PREFIX": "${sourceDir}/build/${presetName}/libcytnx",
+        "CMAKE_EXPORT_COMPILE_COMMANDS": "OFF",
+        "USE_MKL": "OFF",
+        "BUILD_PYTHON": "ON",
+        "BACKEND_TORCH": "OFF",
+        "USE_HPTT": "ON",
+        "HPTT_ENABLE_FINE_TUNE": "ON",
+        "USE_CUDA": "OFF",
+        "RUN_TESTS": "OFF",
+        "RUN_BENCHMARKS": "OFF",
+        "USE_DEBUG": "OFF",
+        "BUILD_DOC": "OFF",
+        "DEV_MODE": "OFF"
+      }
+    },
+    {
+      "name": "mkl",
+      "hidden": true,
+      "description": "A base preset overriding OpenBLAS variables with MKL variables.",
+      "cacheVariables": {
+        "USE_MKL": "ON"
+      }
+    },
+    {
+      "name": "mkl-cpu",
+      "displayName": "mkl-cpu",
+      "description": "Intel MKL as the BLAS vendor with CPU-only support.",
+      "inherits": ["mkl", "default"]
+    },
+    {
+      "name": "openblas-cuda",
+      "displayName": "openblas-cuda",
+      "description": "OpenBLAS as the BLAS vendor with CUDA support.",
+      "inherits": "default",
+      "cacheVariables": {
+        "USE_CUDA": "ON",
+        "USE_CUTT": "ON",
+        "CUTT_ENABLE_FINE_TUNE": "ON",
+        "USE_CUTENSOR": "ON",
+        "USE_CUQUANTUM": "ON"
+      }
+    },
+    {
+      "name": "mkl-cuda",
+      "displayName": "mkl-cuda",
+      "description": "Intel MKL as the BLAS vendor with CUDA support.",
+      "inherits": ["mkl", "openblas-cuda"]
+    },
+    {
+      "name": "debug",
+      "hidden": true,
+      "description": "A base preset overriding release variables with debug variables.",
+      "cacheVariables": {
+        "CMAKE_BUILD_TYPE": "Debug",
+        "CMAKE_EXPORT_COMPILE_COMMANDS": "ON",
+        "USE_DEBUG": "ON",
+        "RUN_TESTS": "ON",
+        "RUN_BENCHMARKS": "OFF",
+        "BUILD_DOC": "OFF",
+        "DEV_MODE": "OFF"
+      }
+    },
+    {
+      "name": "debug-openblas-cpu",
+      "displayName": "debug-openblas-cpu",
+      "description": "Debug build: OpenBLAS as the BLAS vendor with CPU-only support.",
+      "inherits": ["debug", "default"]
+    },
+    {
+      "name": "debug-mkl-cpu",
+      "displayName": "debug-mkl-cpu",
+      "description": "Debug build: Intel MKL as the BLAS vendor with CPU-only support.",
+      "inherits": ["debug", "mkl-cpu"]
+    },
+    {
+      "name": "debug-openblas-cuda",
+      "displayName": "debug-openblas-cuda",
+      "description": "Debug build: OpenBLAS as the BLAS vendor with CUDA support.",
+      "inherits": ["debug", "openblas-cuda"]
+    },
+    {
+      "name": "debug-mkl-cuda",
+      "displayName": "debug-mkl-cuda",
+      "description": "Debug build: Intel MKL as the BLAS vendor with CUDA support.",
+      "inherits": ["debug", "mkl-cuda"]
+    }
+  ],
+  "buildPresets": [
+    {
+      "name": "default",
+      "displayName": "openblas-cpu",
+      "description": "Build using OpenBLAS with CPU-only support.",
+      "configurePreset": "default",
+      "targets": ["all", "install"],
+      "jobs": 8
+    },
+    {
+      "name": "openblas-cuda",
+      "description": "Build using OpenBLAS with CUDA support.",
+      "configurePreset": "openblas-cuda",
+      "inherits": "default"
+    },
+    {
+      "name": "mkl-cuda",
+      "description": "Build using Intel MKL with CUDA support.",
+      "configurePreset": "mkl-cuda",
+      "inherits": "default"
+    },
+    {
+      "name": "debug-openblas-cpu",
+      "description": "Debug build using OpenBLAS with CPU-only support.",
+      "configurePreset": "debug",
+      "inherits": "default"
+    },
+    {
+      "name": "debug-mkl-cpu",
+      "description": "Debug build using Intel MKL with CPU-only support.",
+      "configurePreset": "debug-mkl-cpu",
+      "inherits": "default"
+    },
+    {
+      "name": "debug-openblas-cuda",
+      "description": "Debug build using OpenBLAS with CUDA support.",
+      "configurePreset": "debug-openblas-cuda",
+      "inherits": "default"
+    },
+    {
+      "name": "debug-mkl-cuda",
+      "description": "Debug build using Intel MKL with CUDA support.",
+      "configurePreset": "debug-mkl-cuda",
+      "inherits": "default"
+    }
+  ],
+  "testPresets": [
+    {
+      "name": "default",
+      "displayName": "cpu-only",
+      "description": "Run tests for CPU-only builds.",
+      "configurePreset": "debug",
+      "output": {
+        "outputOnFailure": true,
+        "verbosity": "verbose"
+      },
+      "execution": {
+        "jobs": 8
+      }
+    },
+    {
+      "name": "cpu-and-cuda",
+      "description": "Run tests for builds with CUDA support.",
+      "configurePreset": "debug-openblas-cuda",
+      "inherits": "default"
+    }
+  ]
+}
diff --git a/Install.sh b/Install.sh
deleted file mode 100755
index fc9b13440..000000000
--- a/Install.sh
+++ /dev/null
@@ -1,196 +0,0 @@
-#=========================================================
-## 1) Custom install destination (DEFAULT /usr/local/cytnx)
-#=========================================================
-# [Note] Set the destination path for installation in Ins_dest
-#----------------------------------------------
-Ins_dest="/usr/local/cytnx"
-FLAG="${FLAG} -DCMAKE_INSTALL_PREFIX=${Ins_dest}"
-#-----------------------------------------------
-
-#=================================================================
-# 2) linalg libs:
-#=================================================================
-# [Note] we have two choice: OpenBLAS or MKL (choose either one!)
-#        uncomments either a) or b) for the one you wish to use.
-#---------------------------
-# 2-a) use MKL (DEFAULT = OFF):
-# [Note] if using mkl, uncomments the following line and
-#        Please follow the guide from official mkl/oneMKL "post-installation" part
-#        to source the proper setvars.sh and/or vars.sh
-#---------------------------
-FLAG="${FLAG} -DUSE_MKL=OFF"
-#---------------------------
-# 2-b) use OpenBLAS (DEFAULT = on (by settung DUSE_MKL=OFF above))
-# [Note] By default it will automatically find openblas installed
-#        In case of cmake cannot find the BLAS, uncomments the following lines
-#        and set the BLAS_ROOT:
-#---------------------------
-#BLASROOT=/deps/OpenBLAS
-#export C_INCLUDE_PATH=${BLASROOT}/include
-#export CPLUS_INCLUDE_PATH=${BLASROOT}/include
-#export LD_LIBRARY_PATH=${BLASROOT}/lib
-#---------------------------
-
-
-#============================================================================
-# 3) use python (DEFAULT = ON)
-#============================================================================
-# set to "=on" for building python API, required python and pybind11 installed.
-#--------------------------------
-FLAG="${FLAG} -DBUILD_PYTHON=ON"
-#--------------------------------
-
-
-#=================================================================
-# 4) torch backend (DEFAULT = OFF):
-#=================================================================
-# [Note] if set to ON, torch will be used as a backend container
-#				 for tensors. This allows to use automatic differentiatio
-#--------------------------------
-FLAG="${FLAG} -DBACKEND_TORCH=OFF"
-#--------------------------------
-
-
-#=========================================================
-# 5) Boost:
-#=========================================================
-# [Note] by default, it will automatically find system installed boost.
-#        In case boost cannot be found automatically, uncomment the following line,
-#        and set the boost path manually.
-#-----------------------------------
-#BOOST_ROOT=/deps/BOOST
-#FLAG="${FLAG} -DBOOSTROOT=${BOOST_ROOT}"
-#-----------------------------------
-
-
-#=========================================================
-# 6) HPTT (DEFAULT = OFF):
-#=========================================================
-# [Note] set to "=on" for using hptt library to accelrate tensor transpose.
-#        for "=off" case one can skip 5-a) and  5-b)
-#-----------------------------------
-FLAG="${FLAG} -DUSE_HPTT=OFF"
-#-----------------------------------
-# 6-a) HPTT fine tune (DEFAULT = OFF)
-# [Note] set to "=on" to enable fine tune for the native hardware.
-#-----------------------------------
-FLAG="${FLAG} -DHPTT_ENABLE_FINE_TUNE=OFF"
-#-----------------------------------
-# 6-b) HPTT variant options (DEFAULT = no option)
-# [Note] uncomment one of the desired options below 1: AVX 2: IBM 3: ARM.
-#-----------------------------------
-#FLAG="${FLAG} -DHPTT_ENABLE_ARM=ON"
-#FLAG="${FLAG} -DHPTT_ENABLE_AVX=ON"
-#FLAG="${FLAG} -DHPTT_ENABLE_IBM=ON"
-#-----------------------------------
-
-
-#=========================================================
-# 7) CUDA (DEFAULT = OFF):
-#=========================================================
-# [Note] set to "=on" to build with with GPU (CUDA) support.
-#        for "=off" case one can skip 6-a) and  6-b)
-#-----------------------------------
-FLAG="${FLAG} -DUSE_CUDA=OFF"
-#-----------------------------------
-# 7-a) CUTT (DEFAULT = OFF)
-# [Note] set to "=on" for using CUTT library to accelrate tensor transpose.
-#        for "=off" case one can skip 6-b)
-#-----------------------------------
-FLAG="${FLAG} -DUSE_CUTT=OFF"
-#-----------------------------------
-# 7-b) CUTT fine tune (DEFAULT = OFF)
-# [Note] set to "=on" to enable fine tune for the native hardware.
-#-----------------------------------
-FLAG="${FLAG} -DCUTT_ENABLE_FINE_TUNE=OFF"
-#-----------------------------------
-# 7-c) CuTensor (DEFAULT = OFF)
-# [Note] set to "=off" will make permutation on GPU into using cutt library.
-# [Note] CUTENSOR_ROOT is required to given, either from enviroment variable in bashrc
-#        or given in the following line using -DCUTENSOR_ROOT
-FLAG="${FLAG} -DUSE_CUTENSOR=OFF"
-#CUTENSOR_ROOT=/usr/local/libcutensor-...
-#FLAG="${FLAG} -DCUTENSOR_ROOT=${CUTENSOR_ROOT}"
-#-----------------------------------
-# 7-d) CuQuantum (DEFAULT = OFF)
-# [Note] CUQUANTUM_ROOT is required to given, either from enviroment variable in bashrc
-#        or given in the following line using -DCUTENSOR_ROOT
-FLAG="${FLAG} -DUSE_CUQUANTUM=OFF"
-# CUQUANTUM_ROOT=/usr/local/cuqunatum-......
-#FLAG="${FLAG} -DCUQUANTUM_ROOT=${CUQUANTUM_ROOT}"
-#-----------------------------------
-
-
-#=========================================================
-# 8) Generate compile_commands.json
-#=========================================================
-# [Note] Wheather to generate compile_commands.json for IDE support (DEFAULT = 1)
-#-----------------------------------
-FLAG="${FLAG} -DCMAKE_EXPORT_COMPILE_COMMANDS=1"
-#-----------------------------------
-
-
-#=========================================================
-# 9) Use openmp to accelerate
-#=========================================================
-# [Note] This will run the threaded code in cytnx lib while it will not disable muiltithreading in mkl. (DEFAULT = OFF)
-#-----------------------------------
-FLAG="${FLAG} -DUSE_OMP=OFF"
-#-----------------------------------
-
-
-#=========================================================
-# 10) Run tests and benchmarks
-#=========================================================
-# [Note] Wheather to run cytnx tests (DEFAULT = OFF) and benchmarks (DEFAULT = OFF)
-#-----------------------------------
-DRUN_TESTS=OFF
-FLAG="${FLAG} -DRUN_TESTS=${DRUN_TESTS}"
-FLAG="${FLAG} -DRUN_BENCHMARKS=OFF "
-#-----------------------------------
-
-
-#=========================================================
-# 11) Use icpc
-#=========================================================
-# [Note] Build using intel icpc compiler, uncomment to enable (DEFAULT = OFF (commented out))
-#-----------------------------------
-#FLAG="${FLAG} -DUSE_ICPC=ON " # You should set this to ON if you want to use icpc
-# This option is needed if you want to use icpc, to set the compiler
-# Although icc&icpc is deprecated, but since icx&icpx has poor support for conda environment, we still use icpc
-#FLAG="${FLAG} -DCMAKE_C_COMPILER=icc -DCMAKE_CXX_COMPILER=icpc"
-# This option is to use the intel compiler's ar and linker, which is optional
-#FLAG = "${FLAG} -DCMAKE_AR=xiar -DCMAKE_LINKER=xild"
-#-----------------------------------
-
-
-#=========================================================
-# 12) Use Debug
-#=========================================================
-# [Note] Build using debug mode (DEFAULT = OFF)
-#-----------------------------------
-FLAG="${FLAG} -DUSE_DEBUG=OFF"
-# This is for compile with -fsanitize=address and cuda,
-# if you use the DEBUG flag above, you need to export ASAN_OPTIONS=protect_shadow_gap=0
-# export ASAN_OPTIONS=protect_shadow_gap=0
-# Just a note: export ASAN_OPTIONS=protect_shadow_gap=0:replace_intrin=0:detect_leaks=0
-#-----------------------------------
-
-
-#=========================================================
-# Build commands
-#=========================================================
-echo ${FLAG}
-rm -rf build
-mkdir build
-cd build
-cmake ../ ${FLAG} #-DDEV_MODE=on
-make -j`nproc`
-make install
-# if DRUN_TESTS=ON, run tests
-# ctest
-# shopt -s nocasematch
-# case "${DRUN_TESTS}" in
-#  "ON" ) ctest; gcovr -r ../ . --html-details cov.html;;
-#  *) echo "Tests are skipped";;
-# esac