From what I read as an eu member its possible to stay 3 months here without applying for the residential id. I don't expect it but if there are additional delays its possible the 3 months won't be enough for me to get everything concerning self employment registered to apply for the residential id as self employed.
Would it be possible in that case to just leave malta for one day at the end of the 3 months to get another 3 months after coming back? Anything specific to consider if doing so or just leave and come back the next day?