# OT Node Engine implementation details

Multiple implementations in various programming languages of ot-nodes are planned, with the current implementation in JavaScript [available here](https://github.com/origintrail/ot-node).

Learn more about [ot-node modules here](ot-node-engine-implementation-details/modules) and the [command system](ot-node-engine-implementation-details/command-executor) implementation here.&#x20;
