TIL: You know everybody by 6 steps. Be nice!
A documentary about the science behind sayings like "the world is so small".
Nepomuk
Some online diagram & drawing apps
A few online apps to draw diagrams and draw concepts. Good for software engineers.
TIL: OpenAPI — nullable property in deepObject
If you want to have optional parameters in a schema with the deepObject style, you probably run into problems — at least with the league/openapi-psr7-validator.
The easy fix or workaround for this, is to add nullable: true to the parent schema.
Tipps für einen Aachen-Besuch
Einige Empfehlungen für einen Besuch in Aachen.
Backup for personal data (and restoring them)
Strategies to back up personal data and apps. In case of disaster: restore them… but test the recovery too!
Domain-driven Design: Application services vs. Domain services
When to put your logic into Application services vs. when to Domain services. Let's see what ChatGPT says about this.
An article with PHP code and Prism.js highlighting
A simple example and description on how to use and improve code in Ghost CMS with Prismjs.