Rust from Common Lisp: CFFI Bindings, Opaque Pointers, Callbacks, and REPL Loading

A practical two-hour session on Rust from Common Lisp, focused on CFFI Bindings, Opaque Pointers, Callbacks, and REPL Loading. The session treats Rust as a native component exposed through C-compatible boundaries, with attention to packaging, ownership, host-runtime tests, and failure handling.

Audience: entry-level and intermediate developers who want a practical engineering session, not a language tour.

Outcomes:

• Explain the practical boundaries of Rust from Common Lisp
• Apply CFFI Bindings in a small working example
• Apply Opaque Pointers in a small working example
• Apply Callbacks in a small working example

Format: two hours with a short framing walkthrough, a concrete example, discussion of tradeoffs, and a closing checklist for practice.