The need for evaluated digital resources arose over the last years as blended learning applications became even more popular, and distance learning essential. Besides well-known massive open online courses (MOOCs), approaches called personalised open online courses (POOCs), which present individual learning resources to the users, are developed. Personalisation is, in most cases, based on different information about the users. DigiFit4All is a project to develop a platform for POOCs, including open teaching and learning resources for lower and higher education. In the background, a competency model is used, which enables the definition of learning outcomes for courses, the determination of learning paths, and the assignment of learning resources. With the help of pre-tests, competencies that are already known can be identified. The learning resources are integrated into a learning management system (LMS) which imports them from open repositories. This contribution gives detailed information about the concepts of the DigiFit4All project and compares it to other approaches.