1diff --git a/tools/pythonpkg/setup.py b/tools/pythonpkg/setup.py
2index 30f1e1ccdd..6784169fcb 100644
3--- a/tools/pythonpkg/setup.py
4+++ b/tools/pythonpkg/setup.py
5@@ -96,7 +96,7 @@ def parallel_cpp_compile(
6 return
7 self._compile(obj, src, ext, cc_args, extra_postargs, pp_opts)
8
9- list(multiprocessing.pool.ThreadPool(multiprocessing.cpu_count()).imap(_single_compile, objects))
10+ list(multiprocessing.pool.ThreadPool(@NIX_BUILD_CORES@).imap(_single_compile, objects))
11 return objects
12
13
14@@ -163,7 +163,6 @@ if 'BUILD_HTTPFS' in os.environ:
15 for ext in extensions:
16 toolchain_args.extend(['-DDUCKDB_EXTENSION_{}_LINKED'.format(ext.upper())])
17
18-toolchain_args.extend(['-DDUCKDB_EXTENSION_AUTOLOAD_DEFAULT=1', '-DDUCKDB_EXTENSION_AUTOINSTALL_DEFAULT=1'])
19
20
21 class get_pybind_include(object):
22@@ -348,7 +347,7 @@ setup(
23 packages=packages,
24 include_package_data=True,
25 python_requires='>=3.7.0',
26- setup_requires=setup_requires + ["setuptools_scm<7.0.0", 'pybind11>=2.6.0'],
27+ setup_requires=setup_requires + ["setuptools_scm", 'pybind11>=2.6.0'],
28 use_scm_version=setuptools_scm_conf,
29 tests_require=['google-cloud-storage', 'mypy', 'pytest'],
30 classifiers=[