```bash
grep 'categories =' content/en/articles/*/index.md | sed -E 's/.*=\s*\[(.*)\]/\1/' | tr ',' '\n' |sed -e 's/^[[:space:]]*//' -e 's/[[:space:]]*$//' |sed 's/^"//; s/"$//' |sort -u
```

"3D Printing"
"Uncategorized" - ""
"WordPress"
"android"
"art"
"bash"
"blogging"
"code"
"disney"
"diy"
"fotografia"
"freedom"
"hugo"
"itaglia"
"life"
"linux"
"musica"
"nature"
"notes"
"quotes"
"security"
"slackware"
"web"


"Blogging" - generic
"Code" - articles that contain code snippets
"3D Printing" - self explanatory
"Photography" - covers articles where I share pictures, galleries etc.
"Self Reflection" - was "life". covers quotes, generic articles about life
"CyberSecurity" - was "security". Articles about Cyber
"Video" - Articles with videos in them
"DIY" - self explanatory