google-one-tap by BurakGur

 Apple signin for React using the official Apple JS SDK. Maintained by a-tokyo on GitHub, where it has earned 140 stars from the community.

Single-spa application example which imports registered applications from NPM packages and manages authentication features as login. Maintained by jualoppaz on GitHub, where it has earned 135 stars from the community.

Slim 4 Authorization Tutorial. Maintained by zhorton34 on GitHub, where it has earned 92 stars from the community.