Software and engineering notes
The apps I build on my own, and what I wrote down while building them.
See the softwareSoftware
Pyramid Mental Arithmetic (iOS)
An iOS app for solving number pyramids (also called math pyramids or calculation pyramids) in your head: add the neighbouring numbers upward and fill in the blanks. Working-memory training you can do anywhere.
Pyramid Mental Arithmetic (Web)
The browser version of the number pyramid (calculation pyramid) mental arithmetic trainer for working memory.
Recent posts
How Much Does Working Memory Hold, and Can You Train It?
Why the real figure is four rather than seven, what a chunk actually is, and where the evidence for brain training runs out.
Every Page Got the Same Canonical URL: Next.js Metadata Inherits Downward
An alternates block in the layout landed on every page, so the whole site claimed to be a duplicate of the home page. Plus the second trap that hits bilingual trees.
Next.js Static Export on Cloudflare Pages: trailingSlash, _redirects, and What Breaks
What output: export takes away, how trailingSlash quietly breaks your sitemap, and why opengraph-image is unusable here.