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Run 35 AWS Services Locally FREE: Floci, Quarkus and GraalVM-Powered, LocalStack Alternative (#96)

23 de maio de 2026 · 36 min

Notas do episódio

What if you could run 35 AWS services locally in under 25 milliseconds, using just 13 megabytes of memory, with a single Docker command and no cloud bill? That's exactly what Floci does.


In this episode, Frank Delporte talks with Hector Ventura, the creator of Floci, a free and open-source cloud emulator built with Quarkus and GraalVM native compilation. Hector walks us through why he built it when LocalStack dropped its open-source community edition, how AI tooling helped him accelerate development of new service integrations, the challenges of keeping GraalVM happy with third-party libraries, and the road ahead for Azure and GCP support.


If you're a developer who wants fast local testing, a DevOps engineer writing Terraform, or a student learning cloud without the cost, Floci is worth a look!


Guest: Hector Ventura

Foojay Author page

LinkedIn


Links

On Foojay: Introducing Floci: A High-Performance, GraalVM-Powered AWS Emulator

Floci project site

Floci on GitHub

Migrate from LocalStack


Content

00:00 Introduction of topic and guest

01:48 What is Floci?

02:15 How Floci compares to LocalStack

03:01 Why Hector started Floci

04:02 Floci emulates the cloud APIs

05:02 How additional services got integrated with AI assistance

06:31 Meaning of the name Floci

07:07 Why Quarkus and GraalVM as the starting point for Floci

09:35 How Floci starts up very fast and only uses a low amount of memory

12:18 GraalVM can be hard with some libraries or frameworks

14:02 What is needed to use Floci

14:56 The challenges to support AWS, Azure, GCP and finding contributors

20:24 Funding Floci

21:04 How data is persisted in Floci

22:37 Verifying Floci versus the "real" APIs with compatibility tests

23:56 In the future: UI for Floci

25:04 Biggest challenges while creating Floci

25:32 Functionality compared between Floci and LocalStack and migrating

28:15 Feedback from the Floci users

28:58 Long-term plans for Floci

29:59 Biggest surprises during the development of Floci

31:00 Best use-cases for Floci

32:12 In the next releases...

33:31 How to get started with Floci

35:00 Conclusion

Todos os episódios de Foojay.io | Friends of OpenJDK and Java Programming

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