return {
    -- lspconfig
    {
        "neovim/nvim-lspconfig",
        opts = {
            -- options for vim.diagnostic.config()
            diagnostics = {
                underline = true,
                update_in_insert = false,
                virtual_text = {
                    spacing = 4,
                    source = "if_many",
                    prefix = "●",
                    -- this will set set the prefix to a function that returns the diagnostics icon based on the severity
                    -- this only works on a recent 0.10.0 build. Will be set to "●" when not supported
                    -- prefix = "icons",
                },
                severity_sort = true,
                float = {
                    border = 'rounded',
                    source = 'always',
                    header = '',
                    prefix = '',
                },
            },
            -- Enable this to enable the builtin LSP inlay hints on Neovim >= 0.10.0
            -- Be aware that you also will need to properly configure your LSP server to
            -- provide the inlay hints.
            inlay_hints = {
                enabled = false,
            },
        },
        config = function(_, opts)
            local lsp = require('lspconfig')
            local lsp_defaults = lsp.util.default_config

            lsp_defaults.capabilities = vim.tbl_deep_extend(
                'force',
                lsp_defaults.capabilities,
                require('cmp_nvim_lsp').default_capabilities()
            )

            local sign = function(o)
                -- See :help sign_define()
                vim.fn.sign_define(o.name, {
                    texthl = o.name,
                    text = o.text,
                    numhl = ''
                })
            end

            sign({ name = 'DiagnosticSignError', text = '✘' })
            sign({ name = 'DiagnosticSignWarn', text = '▲' })
            sign({ name = 'DiagnosticSignHint', text = '⚑' })
            sign({ name = 'DiagnosticSignInfo', text = '' })

            vim.diagnostic.config({
                virtual_text = false,
                severity_sort = true,
                float = {
                    border = 'rounded',
                    source = 'always',
                    header = '',
                    prefix = '',
                },
            })

            vim.lsp.handlers['textDocument/hover'] = vim.lsp.with(
                vim.lsp.handlers.hover,
                { border = 'rounded' }
            )

            vim.lsp.handlers['textDocument/signatureHelp'] = vim.lsp.with(
                vim.lsp.handlers.signature_help,
                { border = 'rounded' }
            )

            vim.lsp.handlers["workspace/diagnostic/refresh"] = function(_, _, ctx)
                local ns = vim.lsp.diagnostic.get_namespace(ctx.client_id)
                pcall(vim.diagnostic.reset, ns)
                return true
            end

            vim.api.nvim_create_autocmd('BufWritePre', {
                pattern = '*.go',
                callback = function()
                    vim.lsp.buf.code_action({ context = { only = { 'source.organizeImports' } }, apply = true })
                end
            })

            local on_attach = function(client)
                local bufmap = function(mode, lhs, rhs)
                    local opts = { buffer = true }
                    vim.keymap.set(mode, lhs, rhs, opts)
                end

                bufmap('n', 'K', '<cmd>lua vim.lsp.buf.hover()<cr>')
                bufmap('n', 'gd', '<cmd>lua vim.lsp.buf.definition()<cr>')
                bufmap('n', 'gD', '<cmd>lua vim.lsp.buf.declaration()<cr>')
                bufmap('n', 'go', '<cmd>lua vim.lsp.buf.type_definition()<cr>')
                bufmap('n', 'gs', '<cmd>lua vim.lsp.buf.signature_help()<cr>')
                bufmap('n', 'gA', '<cmd>Telescope diagnostics<cr>')
                bufmap('n', 'gr', '<cmd>Telescope lsp_references<cr>')
                bufmap('n', 'gi', '<cmd>Telescope lsp_implementations<cr>')
                bufmap('n', '<leader>cr', '<cmd>lua vim.lsp.buf.rename()<cr>')
                bufmap('n', '<leader>ca', '<cmd>lua vim.lsp.buf.code_action()<cr>')
                bufmap('n', 'gl', '<cmd>lua vim.diagnostic.open_float()<cr>')
                bufmap('n', '[d', '<cmd>lua vim.diagnostic.goto_prev()<cr>')
                bufmap('n', ']d', '<cmd>lua vim.diagnostic.goto_next()<cr>')
            end

            lsp.gopls.setup {
                settings = {
                    gopls = {
                        gofumpt = true,
                        codelenses = {
                            gc_details = false,
                            generate = true,
                            regenerate_cgo = true,
                            run_govulncheck = true,
                            test = true,
                            tidy = true,
                            upgrade_dependency = true,
                            vendor = true,
                        },
                        hints = {
                            assignVariableTypes = true,
                            compositeLiteralFields = true,
                            compositeLiteralTypes = true,
                            constantValues = true,
                            functionTypeParameters = true,
                            parameterNames = true,
                            rangeVariableTypes = true,
                        },
                        analyses = {
                            fieldalignment = true,
                            shadow = true,
                            unusedvariable = true,
                            unusedwrite = true,
                            useany = true,
                        },
                        usePlaceholders = true,
                        completeUnimported = true,
                        staticcheck = true,
                        directoryFilters = { "-.git", "-.vscode", "-.idea", "-.vscode-test", "-node_modules" },
                        semanticTokens = true
                    },
                },
                on_attach = on_attach
            }
            lsp.clangd.setup {
                settings = {
                    clangd = {
                        cmd = {
                            "clangd",
                            "--background-index",
                            "--clang-tidy",
                            "--header-insertion=iwyu",
                            "--completion-style=detailed",
                            "--function-arg-placeholders",
                            "--fallback-style=llvm",
                        },
                        init_options = {
                            usePlaceholders = true,
                            completeUnimported = true,
                            clangdFileStatus = true,
                        },
                    },
                },
                on_attach = on_attach
            }
            lsp.ltex.setup {
                on_attach = on_attach,
                filetypes = { "latex", "tex", "bib", "mkd", "gitcommit", "text" },
            }
            lsp.svelte.setup { on_attach = on_attach }
            lsp.tsserver.setup { on_attach = on_attach }
            lsp.lua_ls.setup {
                settings = {
                    Lua = {
                        workspace = {
                            checkThirdParty = false,
                        },
                        codeLens = {
                            enable = true,
                        },
                        completion = {
                            callSnippet = "Replace",
                        },
                        diagnostics = {
                            globals = { 'vim' }
                        },
                    }
                },
                on_attach = on_attach
            }
        end
    }
}