What is the legal ruling on working for a pizza restaurant delivery service that sells various types of pizza, including those with pork, knowing that there is no alternative employment due to health conditions and the inability to stand for long periods?

If the employer stipulates the delivery of all types, including the forbidden, then this work is impermissible because it constitutes cooperation in sin. However, if the questioner cannot find other work, then it is permissible for him to remain in it while minimizing the delivery of the forbidden as much as possible, due to necessity. He must dispose of the unlawful portion of his salary, unless he needs it for a genuine necessity for himself or his dependents, in which case he takes what he needs and disposes of the rest.