diff --git a/.gitignore b/.gitignore
index 1800114..fc868db 100644
--- a/.gitignore
+++ b/.gitignore
@@ -171,4 +171,21 @@ cython_debug/
 .ruff_cache/
 
 # PyPI configuration file
-.pypirc
\ No newline at end of file
+.pypirc
+
+# CMake stuff
+CMakeLists.txt.user
+CMakeCache.txt
+CMakeFiles
+CMakeScripts
+Testing
+Makefile
+cmake_install.cmake
+install_manifest.txt
+compile_commands.json
+CTestTestfile.cmake
+_deps
+CMakeUserPresets.json
+
+# VSCode/ium stuff
+.vscode/
\ No newline at end of file
diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 0000000..829d820
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,43 @@
+cmake_minimum_required(VERSION 3.17.2...3.29)
+project(${SKBUILD_PROJECT_NAME} LANGUAGES C Fortran)
+
+find_package(Python COMPONENTS Development.Module NumPy REQUIRED)
+
+# F2PY include path
+execute_process(
+  COMMAND "${Python_EXECUTABLE}" -c
+          "import numpy.f2py; print(numpy.f2py.get_include())"
+  OUTPUT_VARIABLE F2PY_INCLUDE_DIR
+  OUTPUT_STRIP_TRAILING_WHITESPACE)
+
+# fortranobject object library
+add_library(fortranobject OBJECT "${F2PY_INCLUDE_DIR}/fortranobject.c")
+target_link_libraries(fortranobject PUBLIC Python::NumPy)
+target_include_directories(fortranobject PUBLIC "${F2PY_INCLUDE_DIR}")
+set_property(TARGET fortranobject PROPERTY POSITION_INDEPENDENT_CODE ON)
+
+# Auto-generate wrappers
+add_custom_command(
+  OUTPUT bicubicmodule.c bicubic-f2pywrappers.f
+  DEPENDS lensit/bicubic/bicubic.f90
+  COMMAND "${Python_EXECUTABLE}" -m numpy.f2py
+          "${CMAKE_CURRENT_SOURCE_DIR}/lensit/bicubic/bicubic.f90"
+          -m bicubic --lower
+  VERBATIM)
+
+# Compile extension in the right namespace
+python_add_library(
+  bicubic MODULE
+  "${CMAKE_CURRENT_BINARY_DIR}/bicubicmodule.c"
+  "${CMAKE_CURRENT_BINARY_DIR}/bicubic-f2pywrappers.f"
+  "${CMAKE_CURRENT_SOURCE_DIR}/lensit/bicubic/bicubic.f90"
+  WITH_SOABI)
+
+target_link_libraries(bicubic PRIVATE fortranobject)
+
+
+# Automatically install to correct package dir
+install(TARGETS bicubic
+        LIBRARY DESTINATION lensit/bicubic)
+
+message(STATUS "Installing to: ${CMAKE_INSTALL_PREFIX}")
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..99fcff6
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,45 @@
+[build-system]
+requires = [
+    "scikit-build-core",
+    "cmake>=3.18",
+    "ninja",
+    "numpy"
+]
+build-backend = "scikit_build_core.build"
+
+[project]
+name = "lensit"
+version = "0.0.0"
+dependencies = [
+    "numpy",
+    "scipy",
+    "pyfftw",
+    "finufft",
+    "six"
+]
+authors = [
+    {name = "Julien Carron", email="to.jcarron@gmail.com"}
+]
+description = "CMB lensing flat-sky quadratic and iterative estimation tools"
+readme = "README.md"
+license = "MIT-0"
+license-files = ["LICENSE.txt"]
+classifiers = [
+    "Development Status :: 5 - Production/Stable",
+    "Intended Audience :: Science/Research",
+    "Topic :: Scientific/Engineering :: Astronomy",
+    "Programming Language :: Python :: 3",
+]
+
+[project.optional-dependencies]
+dev = ["pytest"]
+extra = ["mpi4py"]
+
+[project.urls]
+Documentation = "https://lensit.readthedocs.io/"
+Repository = "https://github.com/carronj/LensIt"
+Issues = "https://github.com/carronj/LensIt/issues"
+
+
+[tool.scikit-build]
+wheel.packages = ["lensit"]
\ No newline at end of file
diff --git a/requirements.txt b/requirements.txt
deleted file mode 100644
index f503579..0000000
--- a/requirements.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-numpy<=1.22
-scipy
-pyfftw
-finufft
-setuptools<=64
diff --git a/setup.py b/setup.py
deleted file mode 100644
index 428176e..0000000
--- a/setup.py
+++ /dev/null
@@ -1,29 +0,0 @@
-import setuptools
-from numpy.distutils.core import setup
-from numpy.distutils.misc_util import Configuration
-
-with open("README.md", "r") as fh:
-    long_description = fh.read()
-
-
-def configuration(parent_package='', top_path=''):
-    config = Configuration('', parent_package, top_path)
-    config.add_extension('lensit.bicubic.bicubic', ['lensit/bicubic/bicubic.f90'])
-    return config
-
-setup(
-    name='lensit',
-    packages=['lensit', 'lensit.qcinv', 'lensit.ffs_covs', 'lensit.ffs_deflect',
-              'lensit.pbs', 'lensit.misc', 'lensit.pseudocls', 'lensit.ffs_iterators'],
-    data_files=[('lensit/data/cls', ['lensit/data/cls/fiducial_flatsky_lensedCls.dat',
-                                         'lensit/data/cls/fiducial_flatsky_lenspotentialCls.dat',
-                                         'lensit/data/cls/fiducial_params_tensor.ini',
-                                          'lensit/data/cls/fiducial_tensCls.dat'])],
-    url='https://github.com/carronj/lensit',
-    author='Julien Carron',
-    author_email='to.jcarron@gmail.com',
-    description='CMB lensing flat-sky quadratic and iterative estimation tools',
-    install_requires=['numpy', 'pyfftw', 'scipy'], #skipped mpi4py for travis
-    long_description=long_description,
-    configuration=configuration)
-