The Portable Object Compiler, a language and a runtime library for producing C programs that operate by the runtime conventions of Smalltalk 80 in a UNIX environment, as described in Brad Cox's book on Objective-C. The precompiler is backed by a library which supports Smalltalk 80's interpretatation of messaging; binding of a message to its target routine is done at run time.
Lunatic is an Erlang-inspired runtime for WebAssembly
Lunatic is a universal runtime for fast, robust and scalable server-side applications. It's inspired by Erlang and can be used from any language that compiles to WebAssembly.
Lightweight runtime monitor for AJAX web applications that checks in real time whether XML messages received and sent by the application satisfy a predefined interface specification. Complex message sequences and data values are supported.