# Haxy > Software, hardware and systems projects by Kris Ledel. Public project pages, documentation and downloads are available without signing in. Licenses are specified per project. ICAS is a concept specification and Python reference simulator. Android integration and Bluetooth LE Audio hardware validation remain pending. ## Projects - [Haxy project index](https://haxy.io/): All published projects. - [ICAS](https://haxy.io/projects/icas/): Reference simulator. Separate media and call streams from one Android phone. - [OTRUST](https://haxy.io/projects/otrust/): Open source. File timestamps and document signatures with independently verifiable records. ## ICAS resources - [ICAS specification v1.3](https://haxy.io/projects/icas/ICAS-Technical-Spec.md) - [ICAS metadata](https://haxy.io/projects/icas/project.json): Project status and validation details. - [ICAS tests and known issues](https://haxy.io/projects/icas/ICAS-Review-v1.3.md) - [ICAS MIT license](https://haxy.io/projects/icas/LICENSE.txt): License for this project’s code and documentation. - [ICAS: Spec + simulator](https://haxy.io/projects/icas/ICAS-bundle-v1.3.zip): Version 1.3. ## OTRUST resources - [OTRUST: Source code](https://github.com/otrust-eu/opensource) - [OTRUST: MIT license](https://github.com/otrust-eu/opensource/blob/main/LICENSE) ## Author - [Kris Ledel](https://krisledel.com/): Personal website. - [Kris Ledel on GitHub](https://github.com/krisledel)