Using the TTS on a Macbook Pro

My eyes have been giving me trouble again, and I am looking to see if there are any usable open-source TTS engines. I listened to the samples at, and I like what I’ve seen.
Is it possible to use these pretrained model on a GPUless Macbook Pro to create audiobooks? I am ok with a speed of even 0.1.
If it is possible, how do I get it to work? I want to ultimately have a shell function that takes a txt file and gives me an audio file.
Googling led me to this ‘demo server’ thingy at, which is a 404 currently.