kickstart.nvim/lua/custom/plugins/conform.lua

return {
  "stevearc/conform.nvim",
  lazy = true,
  -- event = { "BufReadPre", "BufNewFile" }, -- to disable comment this out
  config = function()
    local conform = require("conform")

    conform.setup({

      formatters_by_ft = {
        css = { { --[[ "prettierd", ]] "prettier" } },
        graphql = { { --[[ "prettierd", ]] "prettier" } },
        html = { { --[[ "prettierd", ]] "prettier" } },
        javascript = { { --[[ "prettierd", ]] "prettier" } },
        javascriptreact = { { --[[ "prettierd", ]] "prettier" } },
        json = { { --[[ "prettierd", ]] "prettier" } },
        less = { { --[[ "prettierd", ]] "prettier" } },
        markdown = { { --[[ "prettierd", ]] "prettier" } },
        scss = { { --[[ "prettierd", ]] "prettier" } },
        svelte = { { --[[ "prettierd", ]] "prettier" } },
        typescript = { { --[[ "prettierd", ]] "prettier" } },
        typescriptreact = { { --[[ "prettierd", ]] "prettier" } },
        yaml = { { --[[ "prettierd", ]] "prettier" } },
      },

      format_on_save = {
        lsp_fallback = true,
        async = false,
        timeout_ms = 500
      }
    })

    vim.keymap.set({ "n", "v" }, "<leader>f", function()
      conform.format({
        lsp_fallback = true,
        async = false,
        timeout_ms = 1000,
      })
    end, { desc = "Format file or range (in visual mode)" })
  end
}