The speaker discussed the process of translating a document called "Nim for Python programmers" from English and Spanish to Brazilian Portuguese. They explained the challenges of keeping the translations up to date and introduced a workflow using Markdown and PO files to automate the translation process. They also introduced a script for initial translations using AWS translate and a Python library called POlib for manipulating PO files. The speaker's tools and workflow simplify the translation process, especially when dealing with source code.