We're both offering managed GitHub Actions runners - some of the differences include:
- Depot runners are hosted in AWS us-east-1, which has implications for network speed, cache speed, access to internet services, etc. (BuildJet is hosted in Europe - maybe Hetzner?)
- Also thanks to AWS: each runner has a dedicated public IP address, so you're not sharing any third-party rate limits (e.g. Docker Hub) with other users
- We have an option to deploy the runners in your own AWS account or VPC-peer with your VPC
- We're integrating Actions runners with the acceleration tech we've built for container builds, starting with distributed caching
