It is a simple program that (1) hosts a webserver, (2) runs server-side code, and (3) hosts a database. It also has built-in support for logging in and permiss

It is a simple program that (1) hosts a webserver, (2) runs server-side code, and (3) hosts a database. It also has built-in support for logging in and permissions to data. Thus, if you want to write a simple website that needs permissions, storage, and server-side code, it's a great backend solution. The limitation is that it isn't high performance.