U. S. return starts with world wide income. .there MAY be a foreign income exclusion under one of two scenarios... one or both may apply or neither... foreign tax credit may come into play also.  this would all be done as regular taxpayer.

https://www.irs.gov/individuals/international-taxpayers/foreign-earned-income-exclusion

https://www.americansabroad.org/us-taxes-abroad-for-dummies-update/