Substrate · 
Substrate is a next-generation framework for blockchain innovation
Trying it out
Simply go to substrate.dev and follow the getting started instructions.
Contributions & Code of Conduct
Please follow the contributions guidelines as outlined in docs/CONTRIBUTING.adoc. In all communications and contributions, this project follows the Contributor Covenant Code of Conduct.
Security
The security policy and procedures can be found in docs/SECURITY.md.
License
Substrate Client (/client/* / sc-*) is licensed under GPL v3.0 with a classpath linking exception, primitives (sp-*), FRAME (frame-*) and pallets (pallets-*), binaries (/bin) and all other utilities are licensed under Apache 2.0.