Credits & sources

Photographs

Both photographs are served from this site. The original files are unchanged; display size varies with the page. Licence information was checked on 27 October 2026.

• A notebook

  

  Photograph by Jan Kahánek, dated 4 January 2017.
  Source: Wikimedia Commons file page; originally published on Unsplash before its 2017 licence change.
  Licence: CC0 1.0 Universal Public Domain Dedication. Commons records a reviewed CC0 licence for this image.
  Local file: notebook.jpg. No changes.

• Luknjane kartice (punched card)

  

  Photograph by Žiga, dated 2005.
  Source: Wikimedia Commons file page, the photographer's own work.
  Licence: CC0 1.0 Universal Public Domain Dedication.
  Local file: punched-card.jpg. No changes.

Writing and references

The notes are original writing for this site. Technical references are linked within individual entries. The short reading note paraphrases advice from Simon Willison's What to blog about; it reproduces no passage from the original.

The text-first blog layout takes inspiration from Simon Willison's Weblog. No photographs or article text from that site are reproduced here.