Optimize your code to run efficiently on less powerful machines. Not only will this save energy, but also opens up your product to users with older devices. Plus, consider using PUE (Power Usage Effectiveness) as a metric when choosing cloud services.

**DON'T** go for any sort of pay-per-bird model. That'll discourage sharing and that's the opposite of what a social platform is supposed to do. Think freemium; core app is free with ads, premium subscription removes ads and adds features like offline maps, detailed bird guides, or whatever else makes sense …