return {
    {
        "neovim/nvim-lspconfig",
        dependencies = {
            "j-hui/fidget.nvim",
            "RRethy/vim-illuminate",
            "hrsh7th/cmp-nvim-lsp",
        },
        config = function()
            local map = require("helpers.keys").map

            map('n', '<leader>e', vim.diagnostic.open_float, "lsp: open diagnostics float")
            map('n', '[d', vim.diagnostic.goto_prev, "lsp: goto previous diagnostic")
            map('n', ']d', vim.diagnostic.goto_next, "lsp: goto next diagnostic")

            -- set up cool signs for diagnostics
            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

            -- Diagnostic config
            local config = {
                virtual_text = false,
                signs = {
                    active = signs,
                },
                update_in_insert = true,
                underline = true,
                severity_sort = true,
                float = {
                    focusable = true,
                    style = "minimal",
                    border = "rounded",
                    source = "always",
                    header = "",
                    prefix = "",
                },
            }
            vim.diagnostic.config(config)

            -- this function gets run when an lsp connects to a particular buffer.
            local on_attach = function(_, bufnr)
                map = require("helpers.keys").lsp_map

                map("<leader>lr", vim.lsp.buf.rename, bufnr, "lsp: rename symbol")
                map("<leader>la", vim.lsp.buf.code_action, bufnr, "lsp: code action")
                map("<leader>ld", vim.lsp.buf.type_definition, bufnr, "lsp: type definition")
                map("<leader>ls", require("telescope.builtin").lsp_document_symbols, bufnr, "lsp: document symbols")

                map("gd", vim.lsp.buf.definition, bufnr, "lsp: goto definition")
                map("gD", vim.lsp.buf.declaration, bufnr, "lsp: goto declaration")
                map("gr", require("telescope.builtin").lsp_references, bufnr, "lsp: goto references")
                map("gI", vim.lsp.buf.implementation, bufnr, "lsp: goto implementation")
                map("K", vim.lsp.buf.hover, bufnr, "lsp: hover documentation")
                map("<c-k>", vim.lsp.buf.signature_help, bufnr, "lsp: signature help")

                -- Create a command `:Format` local to the LSP buffer
                vim.api.nvim_buf_create_user_command(bufnr, "Format", function(_)
                    vim.lsp.buf.format()
                end, { desc = "lsp: format current buffer" })

                map("<leader>fm", "<cmd>Format<cr>", bufnr, "lsp: format current buffer")
            end

            -- nvim-cmp supports additional completion capabilities, so broadcast that to servers
            local capabilities = vim.lsp.protocol.make_client_capabilities()
            capabilities = require("cmp_nvim_lsp").default_capabilities(capabilities)

            -- misc.
            local lspconfig = require('lspconfig')
            local servers = { 'ts_ls', 'jsonls', 'eslint', 'cssls', 'html', 'vala_ls' }
            for _, lsp in pairs(servers) do
                lspconfig[lsp].setup {
                    on_attach = on_attach,
                    capabilites = capabilities,
                }
            end

            -- lua
            require("lspconfig")["lua_ls"].setup({
                on_attach = on_attach,
                capabilities = capabilities,
                settings = {
                    Lua = {
                        completion = {
                            callSnippet = "Replace",
                        },
                        diagnostics = {
                            globals = { "vim" },
                        },
                        workspace = {
                            library = {
                                [vim.fn.expand("$VIMRUNTIME/lua")] = true,
                                [vim.fn.stdpath("config") .. "/lua"] = true,
                            },
                        },
                    },
                },
            })

            -- python
            require("lspconfig")["pylsp"].setup({
                on_attach = on_attach,
                capabilities = capabilities,
                settings = {
                    pylsp = {
                        plugins = {
                            -- we had to disable this here for ruff + black to work
                            pycodestyle = {
                                enabled = false,
                            },
                            ruff = {
                                enabled = true,
                                extendSelect = { "I" },
                            },
                            black = {
                                enabled = true,
                            },
                        },
                    },
                },
            })

            -- efm
            require("lspconfig")["efm"].setup({
                on_attach = on_attach,
                capabilities = capabilities,
                filetypes = { 'sh' },
            })

            vim.g.rustaceanvim = {
                -- Plugin configuration
                tools = {
                },
                -- LSP configuration
                server = {
                    on_attach = on_attach,
                    vim.lsp.inlay_hint.enable(true),
                    default_settings = {
                        -- rust-analyzer language server configuration
                        ['rust-analyzer'] = {
                        },
                    },
                },
                -- DAP configuration
                dap = {
                },
            }

            lspconfig.harper_ls.setup {
                on_attach = on_attach,
                capabilities = capabilities,
                settings = {
                    ["harper-ls"] = {
                        linters = {
                            spell_check = true,
                            spelled_numbers = false,
                            an_a = true,
                            sentence_capitalization = true,
                            unclosed_quotes = true,
                            wrong_quotes = false,
                            long_sentences = true,
                            repeated_words = true,
                            spaces = true,
                            matcher = true,
                            correct_number_suffix = true,
                            number_suffix_capitalization = true,
                            multiple_sequential_pronouns = true,
                            linking_verbs = false,
                            avoid_curses = true,
                        }
                    }
                },
                filetypes = {
                    "markdown", "rust", "typescript", "typescriptreact", "javascript", "python", "go", "c", "cpp", "ruby", "swift", "csharp", "toml", "lua", "gitcommit", "java", "html", "vimwiki"
                }
            }
        end,
    },
    {
        "j-hui/fidget.nvim",
        event = "VeryLazy",
        opts = {
            progress = {
                suppress_on_insert = true,

                display = {
                    render_limit = 4,
                    progress_icon = {
                        pattern = "triangle",

                    },
                },
            },
        },
    },
    {
        'mrcjkb/rustaceanvim',
        version = '^5', -- Recommended
        lazy = false,   -- This plugin is already lazy
    },
    {
        "folke/lazydev.nvim",
        ft = "lua", -- only load on lua files
    },
}