What is the ruling on a Muslim working in restaurants that sell alcohol or serve pork out of necessity, and what is the ruling on a Muslim selling alcohol and pigs or manufacturing and selling alcohol to non-Muslims?

If a Muslim cannot find a permissible job, it is permissible for him to work in the restaurants of disbelievers, provided that he does not directly engage in pouring, carrying, manufacturing, or trading in alcohol. The same applies to serving pork and similar forbidden items.