A dashboard preview is not an e-ink test
Fine gray text that looks elegant in a browser can lose contrast and pixels on the real display.
Topic
embedded systems.
4 field notes, newest first.
If focus moves off-screen, check the geometry
When selection keeps moving but the highlighted item disappears, the visible-area calculation may be wrong—not the input.
Save the replacement before replacing the original
Temporary files and backups make small local databases much more tolerant of crashes and interrupted writes.
When a simple data format is too expensive
On a memory-constrained device, a compact binary index used less working memory than rebuilding a large text document.