These are the Irish regulations:
Registration: To use your drone in Ireland you need to register. If you do not do that, you must
not fly higher than 15 meters and your drone may weigh a
maximum of 1 kilogram.
Maximum flight altitude: The maximum flight altitude is 120 meters in uncontrolled airspace and 15 meters in controlled airspace in Ireland. Without registration, your drone may not fly higher than 15 meters.
Maximum horizontal distance and FPV: Your drone is allowed to move a maximum of 300 meters away from you in Ireland. The direct visual contact must always be present.
Compulsory insurance: The
Irish Aviation Authority (IAA) recommends having drone insurance.
Distance to airports: Drones may approach a maximum of 5 kilometers to an Irish airport.
Other safe distances: Your drone must keep 30 meters lateral distance to persons, ships, cars, and buildings. This is increase to 120m from groups (12 persons or more).
Flight bans: Drones cannot be operated on national monuments.
Flight approval: Individual flight permissions may only be granted if the general rules are to deviate.
Time of operations: Drone flights are permitted at night in Ireland as far as i know.
Summary video below by flyryte drone academy sums it up nicely