Came across an interesting, useful video on YouTube earlier. It's a presentation by the Consulate General of Ireland in San Francisco, detailing the step by step instructions you need to follow to obtain citizenship of Ireland through a Foreign Birth Registration. I'm going to embed the video below, but if they change the settings on it for any reasons, I'll also include the direct link to it, just below that.

Link https://youtu.be/lOOR0KQ_pWY