"Onboarding" experience site for TL?

Folks have observed that Unison has an excellent site for helping folks get started with the language, under https://share.unison-lang.org/

At least in principle, it would be great if we had something similar: some paint-by-numbers introductions that go beyond the current tutorials and ease the path of getting oneself started with TL projects.

This is a fairly tall order, not least because there are so many different kinds of potential TL projects: there's probably no one-size-fits-all starting points. But a few solid examples might be really helpful.

(Note that this isn't just a code-plus-text project: well-thought-out UX and information architecture are likely to also matter.)

Inizia esaminando i tutorial attuali e il sito di onboarding di Unison all’indirizzo https://share.unison-lang.org/. Individua un piccolo insieme di introduzioni rappresentative a progetti TL e delinea l’UX e l’architettura delle informazioni necessarie. Il lavoro è completato quando il progetto dispone di un ambito di onboarding concreto e concordato, anziché di una semplice proposta generale.