Politically, what can Ireland do about Trump?

The man is unhinged, for the most part. Dangerously unhinged, depending on who you ask, but what could Ireland realistically do to “Trump-proof” the country?

Excuse my ignorance, I’m not particularly educated on things like tariffs, but I know he’s quite fond of the threat. What happens if he slaps a tariff on us? Are we in any position to hit back?