pnp / sp-dev-fx-webparts

SharePoint Framework web part, Teams tab, personal app, app page samples

pnp / cli-microsoft365

Manage Microsoft 365 and SharePoint Framework projects on any platform

SharePoint / sp-dev-docs

SharePoint Developer Documentation

pnp / sp-dev-fx-extensions

Code samples and developer content targeted towards SharePoint Framework client-side extensions. https://aka.ms/spfx-webparts