Trying to install agl-demo-control-panel's requirements I get:

lisandro@raspberrypi:~/agl-demo-control-panel $ pip install -r requirements.txt
Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple
Collecting pyqt5==5.15
  Downloading PyQt5-5.15.0.tar.gz (3.3 MB)
     |████████████████████████████████| 3.3 MB 2.5 MB/s 
  Installing build dependencies ... done
  Getting requirements to build wheel ... done
    Preparing wheel metadata ... error
    ERROR: Command errored out with exit status 1:
     command: /usr/bin/python3 /tmp/tmpy9vi4mut_in_process.py prepare_metadata_for_build_wheel /tmp/tmpf2li1byz
         cwd: /tmp/pip-install-zyxqn1db/pyqt5_f069db9ca7fe48a88cb04e58947dd187
    Complete output (31 lines):
    Traceback (most recent call last):
      File "/tmp/tmpy9vi4mut_in_process.py", line 126, in prepare_metadata_for_build_wheel
        hook = backend.prepare_metadata_for_build_wheel
    AttributeError: module 'sipbuild.api' has no attribute 'prepare_metadata_for_build_wheel'
    
    During handling of the above exception, another exception occurred:
    
    Traceback (most recent call last):
      File "/tmp/tmpy9vi4mut_in_process.py", line 280, in <module>
        main()
      File "/tmp/tmpy9vi4mut_in_process.py", line 263, in main
        json_out['return_val'] = hook(**hook_input['kwargs'])
      File "/tmp/tmpy9vi4mut_in_process.py", line 130, in prepare_metadata_for_build_wheel
        return _get_wheel_metadata_from_wheel(backend, metadata_directory,
      File "/tmp/tmpy9vi4mut_in_process.py", line 159, in _get_wheel_metadata_from_wheel
        whl_basename = backend.build_wheel(metadata_directory, config_settings)
      File "/tmp/pip-build-env-b30j8avo/overlay/lib/python3.9/site-packages/sipbuild/api.py", line 46, in build_wheel
        project = AbstractProject.bootstrap('wheel',
      File "/tmp/pip-build-env-b30j8avo/overlay/lib/python3.9/site-packages/sipbuild/abstract_project.py", line 87, in bootstrap
        project.setup(pyproject, tool, tool_description)
      File "/tmp/pip-build-env-b30j8avo/overlay/lib/python3.9/site-packages/sipbuild/project.py", line 586, in setup
        self.apply_user_defaults(tool)
      File "project.py", line 62, in apply_user_defaults
        super().apply_user_defaults(tool)
      File "/tmp/pip-build-env-b30j8avo/overlay/lib/python3.9/site-packages/pyqtbuild/project.py", line 70, in apply_user_defaults
        super().apply_user_defaults(tool)
      File "/tmp/pip-build-env-b30j8avo/overlay/lib/python3.9/site-packages/sipbuild/project.py", line 237, in apply_user_defaults
        self.builder.apply_user_defaults(tool)
      File "/tmp/pip-build-env-b30j8avo/overlay/lib/python3.9/site-packages/pyqtbuild/builder.py", line 69, in apply_user_defaults
        raise PyProjectOptionException('qmake',
    sipbuild.pyproject.PyProjectOptionException
    ----------------------------------------
WARNING: Discarding https://files.pythonhosted.org/packages/8c/90/82c62bbbadcca98e8c6fa84f1a638de1ed1c89e85368241e9cc43fcbc320/PyQt5-5.15.0.tar.gz#sha256=c6f75488ffd5365a65893bc64ea82a6957db126fbfe33654bcd43ae1c30c52f9 (from https://pypi.org/simple/pyqt5/) (requires-python:>=3.5). Command errored out with exit status 1: /usr/bin/python3 /tmp/tmpy9vi4mut_in_process.py prepare_metadata_for_build_wheel /tmp/tmpf2li1byz Check the logs for full command output.
ERROR: Could not find a version that satisfies the requirement pyqt5==5.15
ERROR: No matching distribution found for pyqt5==5.15

Note I am using Raspberry Pi OS as per guided on IRC. Version is 2023-05-03 for arm64.