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diff --git a/nvim/lsp/erg_language_server.lua b/nvim/lsp/erg_language_server.lua
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+---@brief
+---
+--- https://github.com/erg-lang/erg#flags ELS
+---
+--- ELS (erg-language-server) is a language server for the Erg programming language.
+---
+--- erg-language-server can be installed via `cargo` and used as follows:
+---
+--- ```sh
+--- cargo install erg --features els
+--- erg --language-server
+--- ```
+
+return {
+ cmd = { 'erg', '--language-server' },
+ filetypes = { 'erg' },
+ root_markers = { 'package.er', '.git' },
+}