Library with incompatible requirements.

[klaygomes]

This software is not possible to use on a Mac. In Python version 3.8, an error appears stating that espeakng==1.0.3 requires Python version 3.9 or higher. Unfortunately, when I update to Python 3.9, I get an error saying vidia-cublas-cu12=12.1.3.1 needs Python version lower than 3.9.

Error while running with Python 3.8

ERROR: Ignored the following versions that require a different python version: 1.0.3 Requires-Python >=3.9; 1.2.0 Requires-Python >=3.9
ERROR: Could not find a version that satisfies the requirement espeakng==1.0.3 (from versions: 1.0.1, 1.0.2)
ERROR: No matching distribution found for espeakng==1.0.3

Error while running with Python 3.9

ERROR: Ignored the following versions that require a different python version: 0.52.0 Requires-Python >=3.6,<3.9; 0.52.0rc3 Requires-Python >=3.6,<3.9
ERROR: Could not find a version that satisfies the requirement nvidia-cublas-cu12==12.1.3.1 (from versions: 0.0.1.dev5)
ERROR: No matching distribution found for nvidia-cublas-cu12==12.1.3.1

[FlorianEagox]

Hello, I'm sorry I don't have access to a MacBook for testing this. If you can get Coqui TTS installed on your system with all the stuff listed in requirements.txt, you might could try that
(pip install tts)