Julia support has been added to LunarVim but the LspInstall project does not yet have an installer for it. You cannot ':LspInstall julia'
To install the Julia language server in the location where nvim-lspconfig expectsopen in new window:
- run the following terminal command:
julia --project=~/.julia/environments/nvim-lspconfig -e 'using Pkg; Pkg.add("LanguageServer")'