I wrote the Swift (bounded concurrency with TaskGroup, actor-based progress tracking). George handled the production pipeline (signing, notarization, Homebrew distribution). We built it together in 2 days.

Repo: https://github.com/lydakis/icevault Details: https://ody.yachts/presents/icevault-production

Happy to answer questions about the architecture or why Glacier beats Dropbox for cold storage.