Our paper Actinium: A RESTful Runtime Container for Scriptable Internet of Things Applications presents an architecture to make programming of Internet of Things applications significantly easier. Traditional programming models, stemming from networked embedded systems and wireless sensor network research, require developers to be knowledgeable in various technical domains, from low-power networking, over embedded operating systems, to distributed algorithms. With Actinium, we bring Web-like scripting to wireless sensor and actuator nodes and comparable resource-constrained devices. Applications are split into two components: Thin servers that provide the hardware functionality of IoT devices through a low-level RESTful interface and scripted apps that implement the application logic and run in the Cloud. Using our Actinium (Ac) app-server, Erbium (Er) REST engine for Contiki, Californium (Cf) CoAP framework, and Copper (Cu) CoAP user-agent, we demonstrate how to create IoT application by simply mashing up devices, modular apps, and other RESTful Web services. All these building blocks are also publicly available.