a bit sloppy but working

lua/config/null-ls.lua

@@ -0,0 +1,27 @@
+local nls = require("null-ls")
+local augroup = vim.api.nvim_create_augroup("LspFormatting", {})
+nls.setup({
+	sources = {
+		nls.builtins.formatting.stylua,
+		nls.builtins.diagnostics.eslint,
+		nls.builtins.formatting.prettier.with({
+			extra_args = { "--single-quote", "false" },
+		}),
+		nls.builtins.formatting.terraform_fmt,
+		nls.builtins.formatting.black,
+		nls.builtins.formatting.goimports,
+		nls.builtins.formatting.gofumpt,
+	},
+	on_attach = function(client, bufnr)
+		if client.supports_method("textDocument/formatting") then
+			vim.api.nvim_clear_autocmds({ group = augroup, buffer = bufnr })
+			vim.api.nvim_create_autocmd("BufWritePre", {
+				group = augroup,
+				buffer = bufnr,
+				callback = function()
+					vim.lsp.buf.formatting({ bufnr = bufnr })
+				end,
+			})
+		end
+	end,
+})