What are the visa & residency requirements in Brunei?

"To visit Brunei, foreign nationals must obtain a visa prior to arrival. The process of applying for a visa involves submitting an application form, a valid passport, a passport-sized photograph, and a fee. Depending on the purpose of the visit, additional documents may be required. To apply for residency in Brunei, foreign nationals must submit an application form, a valid passport, a passport-sized photograph, and a fee. Depending on the purpose of the residency, additional documents may be required. The application will be reviewed by the Immigration and National Registration Department, and the applicant may be asked to attend an interview. Once approved, the applicant will be issued a residence permit," explained one expat living in Brunei.