Lem uses its LSP mode. https://github.com/lem-project/lem/ https://github.com/lem-project/lem/ (don't know much more, maybe it is that one (same author) https:/

Lem uses its LSP mode. https://github.com/lem-project/lem/ https://github.com/lem-project/lem/ (don't know much more, maybe it is that one (same author) https://github.com/cxxxr/cl-lsp https://github.com/cxxxr/cl-lsp) (edit: there's also https://github.com/nobody-famous/alive-lsp/ https://github.com/nobody-famous/alive-lsp/ that is built for the Alive extension that brings great CL support to VSCode (usable but in the works right now).