Developers and community enthusiast are advised to read the [Developers' Guide](../install-and-build/developers-guide), which contains detailed instructions for manual build from source (on any platform) as well as detailed tips on testing, monitoring, contributing, debugging and submitting pull requests on github.
* Javascript Console: `geth` can be launched with an interactive console, that provides a javascript runtime environment exposing a javascript API to interact with your node. [Javascript Console API](../interface/javascript-console) includes the `web3` javascript Ðapp API as well as an additional admin API.
The Ethereum Core Protocol licensed under the [GNU Lesser General Public License](https://www.gnu.org/licenses/lgpl.html). All frontend client software (under [cmd](https://github.com/ethereum/go-ethereum/tree/master/cmd)) is licensed under the [GNU General Public License](https://www.gnu.org/copyleft/gpl.html).
Security issues are best sent to security@ethereum.org or shared in PM with devs on one of the channels (see Community and Suppport).
Non-sensitive bug reports are welcome on github. Please always state the version (on master) or commit of your build (if on develop), give as much detail as possible about the situation and the anomaly that occurred. Provide logs or stacktrace if you can.
## Contributors
Ethereum is joint work of ETHDEV and the community.
