The main, fully maintained version of MathsFrame is usually hosted at mathsframe.co.uk (not GitHub.io). A github.io subdomain might be:
If you’d like, I can draft a short homepage blurb, a teacher-facing summary, or a simple how-to guide for using one specific MathsFrame tool—tell me which. mathsframe github io
Because these are static pages, they rarely send data back to a server. This is excellent for privacy-concerned schools (GDPR compliance is easier) but means no teacher progress reports. The main, fully maintained version of MathsFrame is
Using number lines and Dienes blocks to represent numbers. a teacher-facing summary