Gerry O’Kelly is a real Irish language advocate. He’s the teacher of the free online Beginners “Start to Learn” at https://groups.io/g/philo-celtic-society and ccng-philo-celtic
These are the phonetics that you learn in that class. (We call it our Robo Jerry!)
Of course this is just one dialect, but you learn one and you can then learn the others.
Irish Pronunciation for Beginners - Step 1 - the vowels
Irish Pronunciation for Beginners - Step 2 – the diphthongs
Irish Pronunciation for Beginners - Step 3 – short, long, broad, and slender vowels
Irish Pronunciation for Beginners - Step 4 – the consonants
Irish Pronunciation for Beginners - Step 5 – the last few rules