`Świece japońskie` is an application created for an investment company,

targeted at both beginner and advanced investors.

It offers a free course on Japanese candlesticks and paid access (subscription-based) to a blog with exclusive knowledge.

As part of the project, I developed a custom CMS that allows the administrator to manage content –

create, edit, and delete posts and messages.

The application features advanced user authentication and authorization using NextAuth along with RBAC for access management.

Additionally, I implemented a custom email notification system.

The application also includes a sales module integrated with the Przelewy24 payment gateway.