Oswaldo Arias

Personal blog, where I write about web development, self-hosting, and engineering.

Featured

• Draw multiple PDF pages on a single PDF page with JS and pdf-lib

  Published:Jan 31, 2025 |  at 11:00 AM

  Draw multiple PDF pages on a single PDF page with JS and pdf-lib.

• Captive portal auto sign in with Raspberry Pi 2 (CFE Internet)

  Published:Jan 30, 2025 |  at 04:00 PM

  This post will guide you through the process of setting up a Raspberry Pi 2 to automatically sign in to the captive portal of CFE Internet.

• Reuse problems for exams with Typst

  Published:Jan 21, 2025 |  at 11:00 AM

  Reuse problems for exams with Typst, creating a problem bank and generating exams with selected problems.