
The key feature of Hydra is the ability to dynamically create a hierarchical configuration by composition and override it through config files and the command line. The name Hydra comes from its ability to run multiple similar jobs - much like a Hydra with multiple heads.
Key features:
- Hierarchical configuration composable from multiple sources
- Configuration can be specified or overridden from the command line
- Dynamic command line tab completion
- Run your application locally or launch it to run remotely
- Run multiple jobs with different arguments with a single command
Official Website Link : https://hydra.cc/docs/intro/

Documentation
Documentation & Resources

Using Hydra with Weights & Biases
You can continue to use Hydra for configuration managment while taking advantage of the power of W&B.

Configuring W&B Projects with Hydra
A brief guide on how to use W&B and Hydra together, complete with code and a few known pitfalls to work around
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