Seems reasonable to change your first name to make your life more convenient, but unless people encounter these names, they’ll never used to saying them.
In the UK it takes knowledge to know how to pronounce Irish names but one you’ve met a few Siobhans and Eoins you get used to it.
There is an element of historical oppression here though. Some people choose to use an Irish spelling because, well, the English keep trying to erase other cultures. That example didn’t work out as well as I thought it would.
I don’t think any builds have been compiled yet. I have no real knowledge how, but but you could build your own by downloading developer tools an cloning the codebase. Probably better just to wait. How were you downloading Simple Mobile Tools previously?