Apache is a free and open-source cross-platform web server software.
Debian is a Linux software which is a free open-source software.
Firebase is a Google-backed application development software that enables developers to develop iOS, Android and Web apps.
Google Maps is a web mapping service. It offers satellite imagery, aerial photography, street maps, 360° interactive panoramic views of streets, real-time traffic conditions, and route planning for traveling by foot, car, bicycle and air, or public transportation.
Unpkg is a content delivery network for everything on npm.