nvim config stolen from @Lukacms

nvim/lua/lsp/hls.lua

@@ -0,0 +1,19 @@
+local M = {}
+
+M.setup = function(on_attach, capabilities)
+	require("lspconfig").hls.setup({
+		capabilities = capabilities,
+		cmd = { "haskell-language-server-wrapper", "--lsp" },
+		on_attach = on_attach,
+		filetypes = { "haskell", "lhaskell" },
+		settings = {
+			haskell = {
+				-- formattingProvider = "stylish-haskell",
+				--[[ formattingProvider = "",
+				cabalFormattingProvider = "cabalfmt", ]]
+			},
+		},
+	})
+end
+
+return M