There was a mod that added a soapery which produced soap and a soapmaker profession, the soap was "eatable" by citizens to increase health (not hunger). Can someone reupload or duplicate it? Iirc the building was just a slightly modified apiary.

If someone remade it, I'd rather it be making drugs/medicine; perhaps out of herbs instead of thin air like the soap was; by either sharing the herbalist profession or making a new pharmacist profession. Given that the only way to increase health is with herbs administered by an herbalist, drugs/soap/whatever that can be used any time without being administered is a good progression. Since herbs are always maxed with a permanent herbalist which is necessary anyway having the drugs require herbs to be made is a balance to deplete herbs. It's also logical, because the drugs would basically just be standard dosed portions of the right combination of herbs which the average person wouldn't know how to make with herbs which is why they need the herbalist to administer herbs and don't need them to take drugs.