return {
	-- lsp servers
	{
		"williamboman/mason.nvim",
		"williamboman/mason-lspconfig.nvim",
		"neovim/nvim-lspconfig",
		event = { "BufReadPre", "BufReadPost", "BufNewFile" },
		opts = {
			inlay_hints = { enabled = false },
			---@type lspconfig.options
			servers = {
				cssls = {},
				tailwindcss = {
					root_dir = function(...)
						return require("lspconfig.util").root_pattern(
							"tailwind.config.js",
							"tailwind.config.cjs",
							"tailwind.config.mjs",
							"tailwind.config.ts",
							"postcss.config.js",
							"postcss.config.cjs",
							"postcss.config.mjs",
							"postcss.config.ts",
							"package.json",
							"node_modules",
							".git"
						)(...)
					end,
				},
				tsserver = {
					root_dir = function(...)
						return require("lspconfig.util").root_pattern(
							"tsconfig.json",
							"package.json",
							"jsconfig.json",
							".git"
						)(...)
					end,
					single_file_support = false,
					settings = {
						typescript = {
							inlayHints = {
								includeInlayParameterNameHints = "literal",
								includeInlayParameterNameHintsWhenArgumentMatchesName = false,
								includeInlayFunctionParameterTypeHints = true,
								includeInlayVariableTypeHints = false,
								includeInlayPropertyDeclarationTypeHints = true,
								includeInlayFunctionLikeReturnTypeHints = true,
								includeInlayEnumMemberValueHints = true,
							},
						},
						javascript = {
							inlayHints = {
								includeInlayParameterNameHints = "all",
								includeInlayParameterNameHintsWhenArgumentMatchesName = false,
								includeInlayFunctionParameterTypeHints = true,
								includeInlayVariableTypeHints = true,
								includeInlayPropertyDeclarationTypeHints = true,
								includeInlayFunctionLikeReturnTypeHints = true,
								includeInlayEnumMemberValueHints = true,
							},
						},
					},
				},
				html = {},
				yamlls = {
					settings = {
						yaml = {
							keyOrdering = false,
						},
					},
				},
				lua_ls = {
					-- enabled = false,
					single_file_support = true,
					settings = {
						Lua = {
							workspace = {
								checkThirdParty = false,
							},
							completion = {
								workspaceWord = true,
								callSnippet = "Both",
							},
							misc = {
								parameters = {
									-- "--log-level=trace",
								},
							},
							hint = {
								enable = true,
								setType = false,
								paramType = true,
								paramName = "Disable",
								semicolon = "Disable",
								arrayIndex = "Disable",
							},
							doc = {
								privateName = { "^_" },
							},
							type = {
								castNumberToInteger = true,
							},
							diagnostics = {
								disable = { "incomplete-signature-doc", "trailing-space" },
								-- enable = false,
								groupSeverity = {
									strong = "Warning",
									strict = "Warning",
								},
								groupFileStatus = {
									["ambiguity"] = "Opened",
									["await"] = "Opened",
									["codestyle"] = "None",
									["duplicate"] = "Opened",
									["global"] = "Opened",
									["luadoc"] = "Opened",
									["redefined"] = "Opened",
									["strict"] = "Opened",
									["strong"] = "Opened",
									["type-check"] = "Opened",
									["unbalanced"] = "Opened",
									["unused"] = "Opened",
								},
								unusedLocalExclude = { "_*" },
							},
							format = {
								enable = false,
								defaultConfig = {
									indent_style = "space",
									indent_size = "2",
									continuation_indent_size = "2",
								},
							},
						},
					},
				},
				gopls = {
					cmd = { "gopls", "serve" }, -- use cmd in path, I can update it easily
					settings = {
						gopls = {
							analyses = {
								nilness = true,
								unusedparams = true,
								unusedwrite = true,
								useany = true,
							},
							staticcheck = false,
							usePlaceholders = false,
						},
					},
				},
				pylsp = {
					cmd = { "pylyzer", "--server" },
					filetypes = { "python" },
					settings = {
						python = {
							checkOnType = false,
							diagnostics = false,
							inlayHints = true,
							smartCompletion = true,
						},
					},
					single_file_support = true,
				},
			},
			setup = {},
		},
	},
}