> For the complete documentation index, see [llms.txt](https://portal.fredy.app.br/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://portal.fredy.app.br/treinamentos-black-friday-2025/black-friday-21-10-25.md).

# Black Friday 21/10/25

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