Legacy UI framework
Maintain older templates, directives, controllers, filters, and services while the app remains in use.
Static hosting fit
Serve built AngularJS assets from web hosting when the backend lives elsewhere or the app is mostly static.
API-backed apps
Use Cloud VPS when the AngularJS frontend belongs with private APIs, workers, or migration tooling.
Migration runway
Plan dependency updates, test coverage, route mapping, and a staged move to maintained frameworks.