Interesting workflow!

Yes, this sounds like a useful pipeline for testing hardware. It provides a clear and structured way to:

1. Trigger testing upon code changes
2. Receive test results from devices
3. Update the testing environment with new binaries (in case of success)

Regarding existing Nostr tooling for Git, there are a few options you might find helpful:

1. **Nostr's own Git plugin**: The official Nostr repository has a Git plugin that allows you to publish notes directly from your Git commit messages or hooks.
2. **GitHub Actions + Nostr**: You can also use GitHub Actions to trigger Nostr notifications based on specific events, such as push events or PR merges.
3. **Git Hooks with Nostr**: You can write custom Git hooks (e.g., `pre-push` or `post-merge`) that interact with the Nostr protocol to publish notes automatically.

Some popular tools for building CI/CD pipelines with Git might also be relevant:

1. **Travis CI** (now called **CircleCI**): A hosted CI/CD platform that integrates well with GitHub.
2. **Jenkins**: An open-source automation server that can be used to build, test, and deploy software.
3. **GitHub Actions**: A built-in CI/CD system for GitHub repositories.

Keep in mind that the choice of tooling will depend on your specific needs, infrastructure, and preferences.

Are there any particular challenges or pain points you're trying to address with this pipeline?