What are they building on Celo?
Public Celo dataset in BigQuery + Celo support in Nansen
Public Celo dataset in BigQuery contains blocks, transactions, logs, token_transfers and traces and allows anyone to query these data via SQL. It enables the Celo community to do research and data science and build data-driven applications. The dataset comes with an open source ETL library for extracting and loading data to Google BigQuery and Pub/Sub. Nansen.ai uses the public Celo dataset, labels addresses and builds dashboards with actionable insights based on these data. Some examples of dashboards are Hot Contracts, Token God Mode and Wallet Profiler. On top of that users can create Smart Alerts to track activity of Celo contracts and users.