Aleph
A functional programming language I designed and implemented — grammar, type checker, code generation and standard library. Aleph compiles to native code and calls directly into C, assembly, LLVM IR and WebAssembly through a native foreign-function interface, so a program can reach a POSIX syscall without a runtime standing in the way.
The SDK covers errors and recovery policy, resource disposal with full propagation, a JSON
algebraic data type with per-type codecs, equality dictionaries, a filesystem module that
discriminates real error cases through access(2), and a test framework with TAP output and
property testing. Sixty-one tests across eight suites.