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Oct 01, 2025

Unison Cloud: now on your infrastructure

Paul Chiusano

With Unison Cloud BYOC, you can now turn any pool of machines into an easily-programmable distributed computing cluster. The experience is the same as our public Unison Cloud, but running on your infrastructure, requiring only S3-compatible storage. We don't see your stored data or any requests sent to your services.

Today we're officially declaring Unison Cloud BYOC generally available. Test clusters are free and easy to set up, and we provide scripts for a growing number of methods. The process is generally: set a few variables, tofu init && tofu apply, then grab a snack and check back in 20 minutes.

Here's a 3-minute demo that sets up a test EKS cluster running Unison Cloud, then submits a distributed batch job:

If you aren't familiar with Unison Cloud, here's what you can expect:

  • Distributed systems in far less code: Your cluster is programmable in the open source Unison language, designed from the ground up for distributed systems. We regularly see 10-100x reductions in LOC needed.
  • Fast iteration times: deployment takes seconds and is done with an ordinary Unison function call. No more building and shipping around multi-gigabyte containers.
  • Fast, typed RPC: Unison Cloud service calls are typed, there is no serialization boilerplate at call boundaries, and communicating services are dynamically co-located using Unison Cloud's unique method of Adaptive Service Graph Compression, saving latency and cost.
  • Simple operations: The containers that make up your cluster don't need replacing; they dynamically take on the behavior of services and jobs you deploy. This is only possible with Unison's unique code serialization and runtime code-loading capabilities.
  • No dependency conflicts: There's no need to create and manage multiple clusters just to avoid dependency conflicts. Unison entirely avoids dependency conflicts as a possibility.
  • Easy local testing: Develop, test, and debug multi-service backends locally, without touching production. Then deploy or rollback in seconds.
  • ... and much more

Unison Cloud is easy to adopt incrementally and can talk to existing services over HTTP, WebSocket, or TCP protocols.

Pricing and our free tier

Unison Cloud BYOC is free for personal usage (up to 10 node clusters or 160 cores) and we offer generous free trials with no credit card required if you're interested in using it commercially. See our plans and reach out to learn more.

For qualified open source projects, non-profit organizations, or educational institutions, we also offer free licenses. Get in touch at hello@unison.cloud to see if your organization qualifies.