Blog
Notes from building VisiGrid. Engineering decisions, releases, and the things a native spreadsheet engine turns out to be good for.
- Oct 8, 2026We tested Google Sheets and Excel Online. Their APIs silently overwrote our data.When a program writes a spreadsheet cell based on a stale read, the Google Sheets and Excel Online APIs accept it and the newer edit disappears with no error. We tested it, explain why it happens, and give a reproduction you can run.
- Sep 6, 2026A spreadsheet that drops down from the top of the screenWe replaced the desktop calculator with a persistent scratch spreadsheet for Omarchy. It took a weekend, because the VisiGrid engine already ran headless. Here is how it works and what it taught us.