# External

Here you will find a list of relevant external resources related to PebbleOS.

- [Pebble OS capabilities](https://docs.google.com/presentation/d/1wfyBRwbrv5YtSnvNRnEPz5tRx9y7VGcFsuHbi1X-D7I/edit?usp=sharing)
- [Firmware Development (For Non-Firmware Engineers)](https://docs.google.com/presentation/d/1M--yoEJBO-uckvY5CTFfHT4srw6RCj9RTGT57RcogX8/edit?usp=sharing)
- [COREDUMP #003: Pebble's Code is Free: 3 Former Pebble Engineers Discuss Why It's Important (Pt. 1/2)](https://www.youtube.com/watch?v=dk5wsNN8abo)