Mapier - An interactive GIS quine The aim of this experiment is to provide a single file GIS application where user could interact with the map, import layers and edit and visualize spatial data without the need to install any (non)proprietary software. All functionality is available within the single file which can be easily saved and thus provide a simple offline storing and portability capability. This project is inspired by https://tiddlywiki.com/. These are the properties the app aims for: 1. Fully working quine 2. Online and offline information storage 3. Ability to load, edit and export spatial data 4. Offline spatial data processing 5. Easy portability 6. Integration with spatial services