What is the ruling on working to develop a search engine that allows businesses to search for their products, including forbidden products like alcohol?

The fundamental principle in developing software is permissibility. It is not prohibited if some users intend to use it for unlawful purposes, such as searching for illicit products, as long as the program is not specifically designed for that purpose, nor is that its predominant use. In such a case, there is no direct or intended assistance in committing unlawful acts. Therefore, there appears to be no impediment to working on the development of the aforementioned search engine.