return {
	"neovim/nvim-lspconfig",
	event = { "BufReadPre", "BufNewFile" },
	dependencies = {
		"hrsh7th/cmp-nvim-lsp",
		{ "antosha417/nvim-lsp-file-operations", config = true },
	},
	config = function()
		-- import lspconfig plugin
		local lspconfig = require("lspconfig")
        local util = require("lspconfig.util")

		-- import cmp-nvim-lsp plugin
		local cmp_nvim_lsp = require("cmp_nvim_lsp")

		local keymap = vim.keymap -- for conciseness

		local opts = { noremap = true, silent = true }
		local on_attach = function(_, bufnr)
			opts.buffer = bufnr

			-- set keybinds
			opts.desc = "Show LSP references"
			keymap.set("n", "gr", "<cmd>Telescope lsp_references<CR>", opts) -- show definition, references

			opts.desc = "Go to declaration"
			keymap.set("n", "gD", vim.lsp.buf.declaration, opts) -- go to declaration

			opts.desc = "Show LSP definitions"
			keymap.set("n", "gd", "<cmd>Telescope lsp_definitions<CR>", opts) -- show lsp definitions

			opts.desc = "Show LSP implementations"
			keymap.set("n", "gi", "<cmd>Telescope lsp_implementations<CR>", opts) -- show lsp implementations

			opts.desc = "Show LSP type definitions"
			keymap.set("n", "gt", "<cmd>Telescope lsp_type_definitions<CR>", opts) -- show lsp type definitions

			opts.desc = "See available code actions"
			keymap.set({ "n", "v" }, "<leader>ca", vim.lsp.buf.code_action, opts) -- see available code actions, in visual mode will apply to selection

			opts.desc = "Smart rename"
			keymap.set("n", "<leader>rn", vim.lsp.buf.rename, opts) -- smart rename

			opts.desc = "Show buffer diagnostics"
			keymap.set("n", "<leader>D", "<cmd>Telescope diagnostics bufnr=0<CR>", opts) -- show  diagnostics for file

			opts.desc = "Show line diagnostics"
			keymap.set("n", "<leader>d", vim.diagnostic.open_float, opts) -- show diagnostics for line

			opts.desc = "Go to previous diagnostic"
			keymap.set("n", "[d", vim.diagnostic.goto_prev, opts) -- jump to previous diagnostic in buffer

			opts.desc = "Go to previous diagnostic"
			keymap.set("n", "<leader>pd", vim.diagnostic.goto_prev, opts) -- jump to previous diagnostic in buffer

			opts.desc = "Go to next diagnostic"
			keymap.set("n", "]d", vim.diagnostic.goto_next, opts) -- jump to next diagnostic in buffer

			opts.desc = "Go to next diagnostic"
			keymap.set("n", "<leader>nd", vim.diagnostic.goto_next, opts) -- jump to next diagnostic in buffer

			opts.desc = "Go to previous diagnostic (error only)"
			keymap.set("n", "[e", function()
				vim.diagnostic.goto_prev({ severity = vim.diagnostic.severity.ERROR })
			end, opts)

			opts.desc = "Go to previous diagnostic (error only)"
			keymap.set("n", "<leader>pe", function()
				vim.diagnostic.goto_prev({ severity = vim.diagnostic.severity.ERROR })
			end, opts)

			opts.desc = "Go to next diagnostic (error only)"
			keymap.set("n", "]e", function()
				vim.diagnostic.goto_next({ severity = vim.diagnostic.severity.ERROR })
			end, opts)

			opts.desc = "Go to next diagnostic (error only)"
			keymap.set("n", "<leader>ne", function()
				vim.diagnostic.goto_next({ severity = vim.diagnostic.severity.ERROR })
			end, opts)

			opts.desc = "Show documentation for what is under cursor"
			keymap.set("n", "K", vim.lsp.buf.hover, opts) -- show documentation for what is under cursor

			opts.desc = "Restart LSP"
			keymap.set("n", "<leader>rs", ":LspRestart<CR>", opts) -- mapping to restart lsp if necessary
		end

		-- override default floating window border if not set
		local orig_util_open_floating_preview = vim.lsp.util.open_floating_preview
		function vim.lsp.util.open_floating_preview(contents, syntax, options, ...)
			options = options or {}
			options.border = options.border or "rounded"
			return orig_util_open_floating_preview(contents, syntax, options, ...)
		end

		-- used to enable autocompletion (assign to every lsp server config)
		local capabilities = cmp_nvim_lsp.default_capabilities()

		-- Change the Diagnostic symbols in the sign column (gutter)
		local signs = { Error = " ", Warn = " ", Hint = "󰠠 ", Info = " " }
		for type, icon in pairs(signs) do
			local hl = "DiagnosticSign" .. type
			vim.fn.sign_define(hl, { text = icon, texthl = hl, numhl = "" })
		end

		-- configure html server
		lspconfig["html"].setup({
			capabilities = capabilities,
			on_attach = on_attach,
		})

		-- configure typescript server with plugin
		lspconfig["tsserver"].setup({
			capabilities = capabilities,
			on_attach = on_attach,
			filetypes = { "typescript", "vue" },
            init_options = {
                {
                    name = "@vue/typescript-plugin",
                    location = "/usr/local/lib/node_modules/@vue/typescript-plugin",
                    languages = {"javascript", "typescript", "vue"},
                },
            }
        })

		-- configure css server
		lspconfig["cssls"].setup({
			capabilities = capabilities,
			on_attach = on_attach,
		})

		-- configure emmet language server
		lspconfig["volar"].setup({
			capabilities = capabilities,
			on_attach = on_attach,
			filetypes = { "vue" },
            init_options = {
                typescript = {
                    tsdk = '/usr/local/lib/node_modules/typescript/lib'
                },
            },
		})

		-- configure php server
		lspconfig["intelephense"].setup({
            root_dir = function(pattern)
              local cwd = vim.loop.cwd()
              local root = util.root_pattern('composer.json')(pattern)

              -- prefer cwd if root is a descendant
              return util.path.is_descendant(cwd, root) and cwd or root
            end,
			capabilities = capabilities,
			on_attach = on_attach,
            init_options = {
                licenceKey = "/home/tovi/.local/share/nvim/intelephense-licence.txt"
            },
            settings = {
            }
		})

		-- configure python server
		lspconfig["pyright"].setup({
			capabilities = capabilities,
			on_attach = on_attach,
		})

		-- configure python server
		lspconfig["gopls"].setup({
			capabilities = capabilities,
			on_attach = on_attach,
		})

		-- configure lua server (with special settings)
		lspconfig["lua_ls"].setup({
			capabilities = capabilities,
			on_attach = on_attach,
			settings = { -- custom settings for lua
				Lua = {
					-- make the language server recognize "vim" global
					diagnostics = {
						globals = { "vim" },
					},
					workspace = {
						-- make language server aware of runtime files
						library = {
							[vim.fn.expand("$VIMRUNTIME/lua")] = true,
							[vim.fn.stdpath("config") .. "/lua"] = true,
						},
					},
				},
			},
		})

		-- configure python server
		lspconfig["dartls"].setup({
			capabilities = capabilities,
			on_attach = on_attach,
		})

	end,
}
