To assess a public blockchain’s developer activity, start with GitHub metrics: track commits, pull requests, and active repositories—frequent updates signal engagement. Check contributor diversity; a broad, consistent pool suggests a healthy community, while reliance on a few raises red flags. Monitor code quality via documentation and release frequency—well-maintained projects reflect dedication. Explore ecosystem growth: the number of dApps, tools, or SDKs built indicates practical developer interest. Analyze forum and social activity (e.g., Discord, X) for discussions and problem-solving—vibrant dialogue shows commitment. Finally, review on-chain data like smart contract deployments or transaction volume tied to development—real usage ties to activity. Cross-check these with platforms like CryptoMiso or Santiment for data-driven insights.