[prabir]

nvim-langserver-shim internally uses an older version of https://github.com/prabirshrestha/vim-lsp I'm hoping in couple of weeks vim-lsp will be stable and so that I can start contributing to nvim-langserver-shim. Currently I'm developing vim-lsp independently.

It already works asynchronously in neovim and vim on windows, mac and linux. You can follow up with the discussion at https://github.com/neovim/neovim/issues/5522 (you can see some of the progress in thread in gifs)