added a load of nonsense and fixed the flake

lua/plugins/completion/conform.lua

@@ -1,4 +1,7 @@
-vim.pack.add({ { src = "https://github.com/stevearc/conform.nvim", name = "conform" } })
+vim.pack.add({
+	{ src = "https://github.com/stevearc/conform.nvim", name = "conform" },
+	{ src = "https://github.com/mfussenegger/nvim-lint", name = "lint" },
+})
 
 require("conform").setup({
 	formatters_by_ft = {
@@ -12,3 +15,34 @@ require("conform").setup({
 	format_on_save = true,
 	undojoin = true,
 })
+
+local lint = require("lint")
+
+-- Only show diagnostics close to the cursor
+vim.diagnostic.config({
+	virtual_text = {
+		spacing = 4,
+		prefix = function(diagnostic)
+			local icons = {
+				[vim.diagnostic.severity.ERROR] = " ",
+				[vim.diagnostic.severity.WARN] = "󰉀 ",
+				[vim.diagnostic.severity.INFO] = " ",
+				[vim.diagnostic.severity.HINT] = "󰌵 ",
+			}
+			return icons[diagnostic.severity] or ""
+		end,
+	},
+	signs = false,
+	underline = true,
+	update_in_insert = false,
+})
+
+-- Auto-run the linter only for the configured filetypes
+vim.api.nvim_create_autocmd("BufWritePost", {
+	callback = function()
+		local ft = vim.bo.filetype
+		if lint.linters_by_ft[ft] then
+			lint.try_lint()
+		end
+	end,
+})