Islandora, as a collection of Drupal modules, Fedora repository software and Solr software for indexing and search, gives a wide palette of possibility to create a digital repository. Modular digital repository of library “Milutin Bojić” is made on Islandora. This paper explains a process of building the repository and shows its background infrastructure, also it presents an introduction to Islandora with some detailed technical and methodological descriptions for further exploration.