Tutorials on Artur Rios Lab

What to Do If Your Phone Is Lost or Stolen in Brazil

Wed, 21 Oct 2026 23:30:00 +0000

I live in Brazil, where phone theft is common enough that it pays to know the steps before you need them. This tutorial is the checklist I keep for that moment. It covers the tools every Android phone has, Samsung’s in particular because that is what I use, and the Brazilian side: the mobile operator, Anatel’s national blocklist of stolen phones, the federal Celular Seguro programme and the police report (boletim de ocorrência).

How to Back Up Any Folder With OneDrive

Wed, 21 Oct 2026 22:00:00 +0000

OneDrive backs up what is inside its own folder, usually C:\Users\<you>\OneDrive, and nothing else. Its built-in folder backup extends that to a fixed set of folders: Desktop, Documents, Pictures, Music and Videos.¹ A folder anywhere else, say D:\Projects, is not backed up unless it is moved into OneDrive, and moving it breaks every program, shortcut and script that expects it at D:\Projects.

The trick that gets passed around is to leave the folder where it is and put a symbolic link to it inside OneDrive. That does not work reliably, for reasons explained below. What works is the same idea pointed the other way: move the folder into OneDrive, where it syncs like any other folder, and leave a link at the old path, so everything that used D:\Projects still finds it there.

How to Use PlantUML With Markdown

Wed, 21 Oct 2026 21:00:00 +0000

PlantUML draws diagrams from text. Instead of dragging boxes around an editor, you write Customer -> Shop: Place order and PlantUML lays out the sequence diagram for you. Markdown is where most documentation lives. Put the two together and the diagram’s source sits in the same file as the text that explains it: it is reviewed in the same pull request, searched with the same tools, and never drifts away from the document because someone lost the original drawing.