Since mid 2020, the Lucet team has been focusing our efforts on the Wasmtime project. Wasmtime now has support for all of the features that previously only Lucet had, such as ahead-of-time (AOT) compilation and a pooling userfaultfd-based memory allocator.
We encourage all new projects to use Wasmtime, and existing Lucet users to transition to Wasmtime.
A Bytecode Alliance project
Lucet is a native WebAssembly compiler and runtime. It is designed to safely execute untrusted WebAssembly programs inside your application.
Check out our announcement post on the Fastly blog.
Lucet uses, and is developed in collaboration with, the Bytecode Alliance's Cranelift code generator. It powers Fastly's Compute@Edge platform.
Lucet's documentation is available at https://bytecodealliance.github.io/lucet (sources).