Poetry2nix failing on a package, how / what do I override?

I’ve got the following flake in my python / poetry project:

{
  description = "Yaht; Yet another hyperparameter tuner";

  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
    poetry2nix.url = "github:nix-community/poetry2nix";
  };

  outputs = { self, nixpkgs, poetry2nix }:
    let
      system = "x86_64-linux";
      pkgs = nixpkgs.legacyPackages.${system};
      inherit (poetry2nix.lib.mkPoetry2Nix { inherit pkgs; })
        mkPoetryApplication;
      yaht = mkPoetryApplication {
        projectDir = ./.;
      };
    in {
      apps.${system}.default = {
        type = "app";
        # replace <script> with the name in the [tool.poetry.scripts]
        # section of your pyproject.toml
        program = "${yaht}/bin/yaht";
      };
    };
}

In an attempt to make it nix-compatible etc. But even though this is basically the default flake from the github page it fails with the following error:

error: builder for '/nix/store/jbx516ravp5536nmg4aq152hm0m8qrxk-python3.12-python-jsonrpc-server-0.4.0.drv' failed with exit code 1;
       last 10 log lines:
       >   '"'"''"'"''"'"' % ('"'"'/build/python-jsonrpc-server-0.4.0/setup.py'"'"',), "<pip-setuptools-caller>", "exec"))' egg_info --egg-base /build/pip-pip-egg-info-lpa_sgjy
       >   cwd: /build/python-jsonrpc-server-0.4.0/
       >   Preparing metadata (setup.py) ... error
       > 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.
       For full logs, run 'nix log /nix/store/jbx516ravp5536nmg4aq152hm0m8qrxk-python3.12-python-jsonrpc-server-0.4.0.drv'.
error: 1 dependencies of derivation '/nix/store/b1yhyzclv7swxsbi0xyrr2dvfrpbyp10-python3.12-yaht-0.1.0.drv' failed to build

The longer nix log is as follows:

Sourcing python-remove-tests-dir-hook
Sourcing python-catch-conflicts-hook.sh
Sourcing python-remove-bin-bytecode-hook.sh
Sourcing pypa-install-hook
Using pypaInstallPhase
Sourcing python-imports-check-hook.sh
Using pythonImportsCheckPhase
Sourcing python-namespaces-hook
Sourcing pip-build-hook
Using pipBuildPhase
Using pipShellHook
Running phase: unpackPhase
@nix { "action": "setPhase", "phase": "unpackPhase" }
unpacking source archive /nix/store/lh5xhk9clfsj26i6kr965qralra35y6f-python-jsonrpc-server-0.4.0.tar.gz
source root is python-jsonrpc-server-0.4.0
setting SOURCE_DATE_EPOCH to timestamp 1599592966 of file python-jsonrpc-server-0.4.0/setup.cfg
Running phase: patchPhase
@nix { "action": "setPhase", "phase": "patchPhase" }
Running phase: updateAutotoolsGnuConfigScriptsPhase
@nix { "action": "setPhase", "phase": "updateAutotoolsGnuConfigScriptsPhase" }
Running phase: configurePhase
@nix { "action": "setPhase", "phase": "configurePhase" }
no configure script, doing nothing
Running phase: buildPhase
@nix { "action": "setPhase", "phase": "buildPhase" }
Executing pipBuildPhase
Creating a wheel...
WARNING: The directory '/homeless-shelter/.cache/pip' or its parent directory is not owned or is not writable by the current user. The cache has been disabled. Check the permissions and owner of that directory. If e>
Processing /build/python-jsonrpc-server-0.4.0
  Running command python setup.py egg_info
  /build/python-jsonrpc-server-0.4.0/versioneer.py:421: SyntaxWarning: invalid escape sequence '\s'
    LONG_VERSION_PY['git'] = '''
  Traceback (most recent call last):
    File "<string>", line 2, in <module>
    File "<pip-setuptools-caller>", line 34, in <module>
    File "/build/python-jsonrpc-server-0.4.0/setup.py", line 25, in <module>
      version=versioneer.get_version(),
              ^^^^^^^^^^^^^^^^^^^^^^^^
    File "/build/python-jsonrpc-server-0.4.0/versioneer.py", line 1480, in get_version
      return get_versions()["version"]
             ^^^^^^^^^^^^^^
    File "/build/python-jsonrpc-server-0.4.0/versioneer.py", line 1412, in get_versions
      cfg = get_config_from_root(root)
            ^^^^^^^^^^^^^^^^^^^^^^^^^^
    File "/build/python-jsonrpc-server-0.4.0/versioneer.py", line 342, in get_config_from_root
      parser = configparser.SafeConfigParser()
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  AttributeError: module 'configparser' has no attribute 'SafeConfigParser'. Did you mean: 'RawConfigParser'?
  error: subprocess-exited-with-error

  × python setup.py egg_info did not run successfully.
  │ exit code: 1
  ╰─> See above for output.
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
  full command: /nix/store/h3i0acpmr8mrjx07519xxmidv8mpax4y-python3-3.12.5/bin/python3.12 -c '
  exec(compile('"'"''"'"''"'"'
  # This is <pip-setuptools-caller> -- a caller that pip uses to run setup.py
  #
  # - It imports setuptools before invoking setup.py, to enable projects that directly
  #   import from `distutils.core` to work with newer packaging standards.
  # - It provides a clear error message when setuptools is not installed.
  # - It sets `sys.argv[0]` to the underlying `setup.py`, when invoking `setup.py` so
  #   setuptools doesn'"'"'t think the script is `-c`. This avoids the following warning:
  #     manifest_maker: standard file '"'"'-c'"'"' not found".
  # - It generates a shim setup.py, for handling setup.cfg-only projects.
  import os, sys, tokenize
  
  try:
      import setuptools
  except ImportError as error:
      print(
          "ERROR: Can not execute `setup.py` since setuptools is not available in "
          "the build environment.",
          file=sys.stderr,
      )
      sys.exit(1)
  
  __file__ = %r
  sys.argv[0] = __file__
  
  if os.path.exists(__file__):
      filename = __file__
      with tokenize.open(__file__) as f:
          setup_py_code = f.read()
  else:
      filename = "<auto-generated setuptools caller>"
      setup_py_code = "from setuptools import setup; setup()"
  
  exec(compile(setup_py_code, filename, "exec"))
  '"'"''"'"''"'"' % ('"'"'/build/python-jsonrpc-server-0.4.0/setup.py'"'"',), "<pip-setuptools-caller>", "exec"))' egg_info --egg-base /build/pip-pip-egg-info-lpa_sgjy
  cwd: /build/python-jsonrpc-server-0.4.0/
  Preparing metadata (setup.py) ... error
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.

I am completely lost about how to do the overrides I need to, I just can’t untangle the poetry2nix documentation. It feels like there’s 5 different ways to override a package in this context, and none of them are correct.