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⚠️ EXPERIMENTAL SOFTWAREThis project is currently in the experimental/testing phase. Do NOT use this firmware on any thermostat that is critical for your heating or cooling needs. Flashing this firmware may brick your device or cause unexpected behavior. Only proceed if you have a backup thermostat or can afford to have your device non-functional during testing.

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What is No Longer Evil?

No Longer Evil is a right-to-repair firmware and cloud replacement for Nest Thermostats that frees your device from Google’s cloud dependency. By flashing custom firmware, your thermostat will operate independently and connect to No Longer Evil’s platform (or your own self-hosted server), giving you complete control over your device data and settings.

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How It Works

The custom firmware works by intercepting the communication layer between your thermostat and Google’s servers:
  1. Firmware Replacement: We flash modified bootloader and kernel components to your Nest device
  2. Traffic Redirection: All network traffic is redirected from Nest/Google servers to the No Longer Evil API (Hosted or Self Hosted)
  3. API Compatibility: Our server hosts a reverse-engineered replica of Google’s API
  4. Seamless Operation: The thermostat believes it’s communicating with official Nest infrastructure
  5. Full Control: You gain complete control through our web dashboard or API
The thermostat’s existing software remains intact and functional. We only modify the network layer to break free from Google’s cloud dependency while maintaining full compatibility.

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What You Need

Before getting started, make sure you have:

Compatible Device

Nest Generation 2 Thermostat (Gen 1 & 3 In Development)

Computer

Linux or macOS for firmware flashing

USB Cable

Micro USB cable to connect thermostat to computer

Internet Connection

For downloading firmware and accessing the dashboard

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Next Steps

Check Compatibility

Verify your Nest Thermostat is Generation 2 and learn how to identify your device