Trackio is a lightweight python library with a similar API to Wandb. It features an offline first design and the logging runs can be visualized as an HF Space or dataset on the HF Hub. I propose to add this backend to the existing Trackers and Metrics backend.

I can help to integrate this backend to AReal, having done the same with optuna/optuna-integration#259 and hiyouga/LlamaFactory#10165 WDYT?