Lint and so on

eslint.config.js

@@ -0,0 +1,40 @@
+import js from '@eslint/js';
+import ts from 'typescript-eslint';
+import svelte from 'eslint-plugin-svelte';
+import prettier from 'eslint-config-prettier';
+import globals from 'globals';
+
+export default ts.config(
+	js.configs.recommended,
+	...ts.configs.recommended,
+	...svelte.configs['flat/recommended'],
+	prettier,
+	...svelte.configs['flat/prettier'],
+	{
+		languageOptions: {
+			globals: { ...globals.browser, ...globals.node },
+		},
+		rules: {
+			'@typescript-eslint/no-unused-vars': [
+				'error',
+				{ argsIgnorePattern: '^_', varsIgnorePattern: '^_' },
+			],
+		},
+	},
+	{
+		files: ['**/*.svelte', '**/*.svelte.ts'],
+		languageOptions: {
+			parserOptions: {
+				parser: ts.parser,
+				extraFileExtensions: ['.svelte'],
+			},
+		},
+	},
+	{
+		files: ['**/*.svelte.ts'],
+		languageOptions: {
+			parser: ts.parser,
+		},
+	},
+	{ ignores: ['dist/'] },
+);