Cannot build from Git due to outdated numpy

Start with the zkml package's pyproject.toml dependency metadata and reproduce the reported pip install from Git on Python 3.14. Check the numpy constraint and its compatibility with the reported interpreter and build output. Done means the package installs successfully from the Git subdirectory without the metadata-generation failure.

(venv) cc@pretty:~$ pip install git+https://github.com/ProvableHQ/python-sdk#subdirectory=zkml
Collecting git+https://github.com/ProvableHQ/python-sdk#subdirectory=zkml
  Cloning https://github.com/ProvableHQ/python-sdk to /tmp/pip-req-build-uco145yl
  Running command git clone --filter=blob:none --quiet https://github.com/ProvableHQ/python-sdk /tmp/pip-req-build-uco145yl
  Resolved https://github.com/ProvableHQ/python-sdk to commit 8b8a68d22dfb4c92ec352d25a8829bf2ea5cfc1c
  Installing build dependencies ... done
  Getting requirements to build wheel ... done
  Preparing metadata (pyproject.toml) ... done
Collecting numpy<2.0.0,>=1.24.3 (from zkml==0.0.2b2)
  Using cached numpy-1.26.4.tar.gz (15.8 MB)
  Installing build dependencies ... done
  Getting requirements to build wheel ... done
  Preparing metadata (pyproject.toml) ... error
  error: subprocess-exited-with-error
  
  × Preparing metadata (pyproject.toml) did not run successfully.
  │ exit code: 1
  ╰─> [974 lines of output]
      + /home/cc/venv/bin/python3.14t /tmp/pip-install-gm055cje/numpy_2a825225e91f447b82cc64a66718cae0/vendored-meson/meson/meson.py setup /tmp/pip-install-gm055cje/numpy_2a825225e91f447b82cc64a66718cae0 /tmp/pip-install-gm055cje/numpy_2a825225e91f447b82cc64a66718cae0/.mesonpy-84zkrpbg -Dbuildtype=release -Db_ndebug=if-release -Db_vscrt=md --native-file=/tmp/pip-install-gm055cje/numpy_2a825225e91f447b82cc64a66718cae0/.mesonpy-84zkrpbg/meson-python-native-file.ini
      The Meson build system
      Version: 1.2.99
      Source dir: /tmp/pip-install-gm055cje/numpy_2a825225e91f447b82cc64a66718cae0
      Build dir: /tmp/pip-install-gm055cje/numpy_2a825225e91f447b82cc64a66718cae0/.mesonpy-84zkrpbg
      Build type: native build
      Project name: NumPy
...
      [349/512] Compiling C object numpy/core/_multiarray_umath.cpython-314t-x86_64-linux-gnu.so.p/src_multiarray_shape.c.o
      FAILED: [code=1] numpy/core/_multiarray_umath.cpython-314t-x86_64-linux-gnu.so.p/src_multiarray_shape.c.o
      sccache cc -Inumpy/core/_multiarray_umath.cpython-314t-x86_64-linux-gnu.so.p -Inumpy/core -I../numpy/core -Inumpy/core/include -I../numpy/core/include -I../numpy/core/src/common -I../numpy/core/src/multiarray -I../numpy/core/src/npymath -I../numpy/core/src/umath -I/usr/include/python3.14t -I/tmp/pip-install-gm055cje/numpy_2a825225e91f447b82cc64a66718cae0/.mesonpy-84zkrpbg/meson_cpu -fvisibility=hidden -fdiagnostics-color=always -DNDEBUG -Wall -Winvalid-pch -std=c99 -O3 -fno-strict-aliasing -msse -msse2 -msse3 -DNPY_HAVE_SSE2 -DNPY_HAVE_SSE -DNPY_HAVE_SSE3 -fPIC -DNPY_INTERNAL_BUILD -DHAVE_NPY_CONFIG_H -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE=1 -D_LARGEFILE64_SOURCE=1 -MD -MQ numpy/core/_multiarray_umath.cpython-314t-x86_64-linux-gnu.so.p/src_multiarray_shape.c.o -MF numpy/core/_multiarray_umath.cpython-314t-x86_64-linux-gnu.so.p/src_multiarray_shape.c.o.d -o numpy/core/_multiarray_umath.cpython-314t-x86_64-linux-gnu.so.p/src_multiarray_shape.c.o -c ../numpy/core/src/multiarray/shape.c
      In file included from ../numpy/core/include/numpy/arrayobject.h:5,
                       from ../numpy/core/src/multiarray/shape.c:8:
      ../numpy/core/src/multiarray/shape.c: In function ‘PyArray_Resize’:
      ../numpy/core/include/numpy/ndarrayobject.h:102:51: error: ‘PyObject’ {aka ‘struct _object’} has no member named ‘ob_refcnt’
        102 | #define PyArray_REFCOUNT(obj) (((PyObject *)(obj))->ob_refcnt)
            |                                                   ^~
      ../numpy/core/src/multiarray/shape.c:108:22: note: in expansion of macro ‘PyArray_REFCOUNT’
        108 |             refcnt = PyArray_REFCOUNT(self);
            |                      ^~~~~~~~~~~~~~~~
      [350/512] Compiling C++ object numpy/core/_multiarray_umath.cpython-314t-x86_64-linux-gnu.so.p/src_npysort_radixsort.cpp.o
      [351/512] Compiling C object numpy/core/_multiarray_umath.cpython-314t-x86_64-linux-gnu.so.p/src_multiarray_textreading_growth.c.o
      [352/512] Compiling C++ object numpy/core/_multiarray_umath.cpython-314t-x86_64-linux-gnu.so.p/src_npysort_timsort.cpp.o
      [353/512] Compiling C object numpy/core/_multiarray_umath.cpython-314t-x86_64-linux-gnu.so.p/src_multiarray_textreading_readtext.c.o
      [354/512] Compiling C object numpy/core/_multiarray_umath.cpython-314t-x86_64-linux-gnu.so.p/src_multiarray_textreading_conversions.c.o
      [355/512] Compiling C object numpy/core/_multiarray_umath.cpython-314t-x86_64-linux-gnu.so.p/src_multiarray_textreading_rows.c.o
      [356/512] Compiling C++ object numpy/core/_multiarray_umath.cpython-314t-x86_64-linux-gnu.so.p/src_npysort_quicksort.cpp.o
      [357/512] Compiling C object numpy/core/_multiarray_umath.cpython-314t-x86_64-linux-gnu.so.p/src_multiarray_textreading_stream_pyobject.c.o
      [358/512] Compiling C++ object numpy/core/_multiarray_umath.cpython-314t-x86_64-linux-gnu.so.p/src_npysort_binsearch.cpp.o
      [359/512] Compiling C object numpy/core/_multiarray_umath.cpython-314t-x86_64-linux-gnu.so.p/src_multiarray_textreading_str_to_int.c.o
      [360/512] Compiling C++ object numpy/core/_multiarray_umath.cpython-314t-x86_64-linux-gnu.so.p/src_npysort_selection.cpp.o
      [361/512] Compiling C++ object numpy/core/_multiarray_umath.cpython-314t-x86_64-linux-gnu.so.p/src_multiarray_textreading_tokenize.cpp.o
      [362/512] Compiling Cython source /tmp/pip-install-gm055cje/numpy_2a825225e91f447b82cc64a66718cae0/numpy/random/_pcg64.pyx
      [363/512] Compiling Cython source /tmp/pip-install-gm055cje/numpy_2a825225e91f447b82cc64a66718cae0/numpy/random/_sfc64.pyx
      [364/512] Compiling Cython source /tmp/pip-install-gm055cje/numpy_2a825225e91f447b82cc64a66718cae0/numpy/random/_philox.pyx
      [365/512] Compiling Cython source /tmp/pip-install-gm055cje/numpy_2a825225e91f447b82cc64a66718cae0/numpy/random/_mt19937.pyx
      [366/512] Compiling Cython source /tmp/pip-install-gm055cje/numpy_2a825225e91f447b82cc64a66718cae0/numpy/random/bit_generator.pyx
      [367/512] Compiling Cython source numpy/random/_bounded_integers.pyx
      [368/512] Compiling Cython source /tmp/pip-install-gm055cje/numpy_2a825225e91f447b82cc64a66718cae0/numpy/random/_common.pyx
      [369/512] Compiling Cython source numpy/random/mtrand.pyx
      [370/512] Compiling Cython source numpy/random/_generator.pyx
      ninja: build stopped: subcommand failed.
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
error: metadata-generation-failed

× Encountered error while generating package metadata.
╰─> See above for output.

note: This is an issue with the package mentioned above, not pip.
hint: See above for details.