lumen
A compiler and runtime for BEAM languages (Erlang/Elixir) that targets WebAssembly and produces standalone executables.
What is lumen?
Firefly is a compiler and runtime for BEAM languages like Erlang and Elixir, designed to produce standalone native executables and target WebAssembly. It solves the problem of deploying BEAM applications in environments where the full Erlang VM is impractical, such as web browsers or resource-constrained systems, by offering ahead-of-time compilation and static binaries.
Erlang and Elixir developers who need to deploy applications as self-contained executables, target WebAssembly for frontend or embedded use, or explore an alternative BEAM implementation written in Rust.
Developers choose Firefly for its ability to compile BEAM languages to WebAssembly and native binaries, its modern Rust implementation, and its focus on deployment simplicity—offering a drop-in replacement for OTP applications that don't require dynamic code loading or hot upgrades.
Overview
An alternative BEAM implementation, designed for WebAssembly
Use Cases
Best For
- Compiling Elixir applications to run in WebAssembly environments like browsers
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