npub166…60ema on Nostr: I'm trying to start an informal research collective to find ways to reduce the carbon ...

I'm trying to start an informal research collective to find ways to reduce the carbon emissions of popular open source software: https://lowcarbon.software/

I'm looking for strategies for measuring the energy usage of software, to see whether this goal is achievable. Does anyone know of any resources on methods of doing this, beyond e.g. powertop?