If the author agrees, I could try to learn Serbo-Croatian (I'm Polish, good with languages) and translate it to English. I'm kinda a burnout Linux geek, who cannot look at computers much more. Translating a book would be fun, but I would need some sponsoring. Amadeusz at [the old name of icloud].com
the book is licenced under CC BY-SA so you should be OK with translating as long as you follow the licence terms.
you could try do a first pass in an AI model to translate and then proof-read it for quicker translation. good luck, it would be fun and potentially impactful ;)
To my knowledge, sadly I can't find an English version of it. I'm too wishing for a future English version so that I can read it. But I guess it will be a lot of work to translate it into English.