If you're looking for a software framework that lets you build intelligent, distributed systems with deterministic timing and strong security, RTI is worth a look. RTI Connext lets developers build autonomous and software-defined data-centric systems that are reliable, secure and performant for highly distributed systems. The framework is used in Aerospace & Defense, Automotive, Healthcare and Industrial markets, and offers commercial, research, academic and open-source licenses.
Another contender is Temporal, an open-source durable execution platform that lets applications and services survive failures so they can complete their work. It offers durable execution, event-driven architecture, SAGA and distributed transactions, state machines, and more. Temporal supports multiple programming languages and can be used for a variety of tasks, and it's available as a self-hosted and fully managed serverless option with Temporal Cloud. That makes it a good option for building reliable distributed systems.
If you want more advanced modeling and simulation abilities, JuliaHub is a powerful option. It's a collection of tools for multithreading, parallel and distributed computing using the Julia language. JuliaHub offers real-time collaborative coding, high-performance computing, and security features like authenticated access and private package management. It's particularly well-suited for technical computing tasks like scientific modeling, digital twins and machine learning, so it's a good option for distributed systems that need high performance and security.
Last, if your project involves building private decentralized applications with a focus on smart privacy, check out Oasis. Oasis is a modular design that separates consensus and compute layers for high throughput and low gas fees. It can be used for private decentralized apps with its confidential Ethereum Virtual Machine (EVM) and lets developers add privacy to existing dApps easily. This platform is well-suited for use cases like decentralized AI, DeFi and gaming.