Hydroflow is a compiler for low-latency dataflow programs, written in Rust. Hydroflow is the runtime library for the Hydro language stack, which is under development as a complete compiler stack for distributed programming languages. To learn more, take a look at the Hydroflow Book.
Hydroflow programs are written in a dataflow-oriented surface syntax language, which allows operators that execute Rust functions to be composed into complex pipelines. This playground is running the Hydroflow compiler in your browser, so you can see the computation graph and resulting Rust code generated from Hydroflow programs.
Hydroflow also comes with an experimental Datalog compiler, which can lower Datalog programs into the Hydroflow syntax, and then to Rust.