Maybe Sicily could be an autonomous governorship, similar to the various Barbary States?
Probably, given that geographically Palermo and Tunis have the same distance from Constantinople: however, I hypothesize, that to take into account the peculiar local situation, there could be a more oligarchic and collegial government.... Or, given that Muslims would always be a minority, wouldn't a solution similar to Wallachia be possible, with a satellite tributary state, through a local noble family of proven loyalty (the Buteras for example) or governed through hospodar
fanarioti?
As for the economy, one thing I'm certain of is that its ports will be full of pirates. I wonder if European slaves could become an important part of the local workforce, or would most of them be sent east instead?
Keep in mind another detail: until 1700 in Sicily there were more African slaves than in the southern colonies of the United States, so much so that one of the patron saints of Palermo, San Benedetto il Moro, was the son of Ethiopian slaves. I do not exclude that African slavery, in an Ottoman Sicily, could last over time.
Two doubts I ask myself: Sicily, given its geographical position, for how long would it remain Ottoman? Until the end of the eighteenth century? Until the mid-nineteenth century? Also because if the Ottoman possession exceeds the mid-eighteenth century, the Ottomans find themselves in the hands of the sulfur question. On the one hand, African slaves could be used in its mines, which, if nationalised, would constitute a very important source of income for Constantinople. On the other hand, however, they would give a reason for Great Britain or France to transform Sicily into a sort of colony...
Another doubt, more stupid than the previous one: the Fatimid mosques, transformed into churches, for example the Cathedral of Palermo (which at the time, not having the neoclassical restructuring, is still recognizable as a mosque) or the Magione, return to their original use, risking popular revolt, or are the Ottomans making the best of a bad situation?
How will the Ottomans deal with the local passion for processions?
Finally, since contacts with Tunis are very close, even though that idiot Emanuele Filiberto di Savoia is not as viceroy, it is probable that the plague of 1624 will break out all the same... Taking for granted that it would be rather unlikely that the whole story would occur of Santa Rosalia, how would the Ottomans handle the issue of contagion and above all, how would they calm local public opinion?