https://github.com/rhasspy/piper

A fast, local neural text to speech system that sounds great and is optimized for the Raspberry Pi 4

https://www.rockbox.org/ Rockbox

is a free replacement firmware for digital music players.

https://en.wikipedia.org/wiki/Alexander_Volkov_(writer)

Alexander Melentyevich Volkov (Russian: Александр Мелентьевич Волков (14 June 1891 – 3 July 1977) was a Soviet novelist, playwright, university lecturer. He was an author of novels, short stories, plays and poems for children, mostly remembered for the Magic Land series of books, based on L. Frank Baum's The Wonderful Wizard of Oz.

https://de.wikipedia.org/wiki/Klaus_Fr%C3%BChauf

Klaus Frühauf (* 12 October 1933 in Halle (Saale) ; † 11 November 2005 in Rostock ) was a German author and one of the most important science fiction authors in the GDR.