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b'Nix has proved to be a revolutionary advance in packaging. In addition to packaging, the core idea has also been succesfuly applied to machine configuration (with NixOS), and to programming languages (Unison). Given how fruitful these applications have been, it\\u2019s natural to ask whether there are others.\\n\\nIn this talk, we\\u2019ll ask how to do cloud infrastructure the nix way. The core idea will be a hash-based service-addressing: the way we contact a service is not via a identifier for a machine (an IP address), nor a mutable pointer to a machine (a service URL), but instead a hash URL that is unique to the machine configuration (the hash of all the software and configuration in a machine).\\n\\nSuddenly, many of the problems of distributed systems become much easier. Deployments with zero downtime, where every request is handled to completion, services are terminated promptly and in the right order, there is no overprovisioning, and we have an exquisitely fine-grained control and understanding of API compatibility issues.\\n\\nAs part of this investigation, we\\u2019ll go through what the core idea of Nix is, and how it relates to similar hash-based technologies such as git, docker, and unison. You\\u2019ll learn about infrastructure and deployment philosophies and techniques, how to adjudicate which notions of identity work best in a given settings, what input-addressed and content-addressed hashing are and why you should care, and more.\\nabout this event: https://bobkonf.de/2023/arni.html'