Project structure
API / backend
Source code inside server/api/.
index.js is basically a routing table pointing each PATH with specified HTTP VERB to a method of a controller.
jwt is used to authenticate api request.
Express.js is based on middleware, passing each request to a chain of methods.
If you come from a PHP background, note that the main difference with Node.js is that the server process is always running and able to manage multiple requests and tasks together (asyncronically) while each php process is tied to a single request.
Sequelize is used as ORM. Take a look in /server/api/models.
Client / frontend
Nuxt.js is used here!
Nuxt is basically Vue plus SSR (Server Side Rendering). Client routing in nuxt is automatic (if you don’t need something special), just put your page inside pages and that’s it!
Federation / ActivityPub
Code inside server/federation.