The lab

Where we experiment.

Tools, experiments and open source from the Raymanthis team — the things we build when nobody's asking.

1 experiment · 1 open-source · 1 tool

Tool
Prompt Diff
A CLI that shows how prompt edits change model output, side by side.
Repo ↗
Experiment
Latency Lens
A browser extension that overlays Core Web Vitals on any page.
Open source
Grid Kit
A tiny CSS grid layout library we use on every marketing site.
Repo ↗
Concept
Clinic Queue
A calmer waiting-room display for small clinics, prototyped in a week.

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