Prefer 2 spaces as default indent

.editorconfig

@@ -1,31 +1,31 @@
 root = true
 
 [*]
-indent_style = tab
-indent_size = 4
+indent_style = space
+indent_size = 2
 insert_final_newline = true
 trim_trailing_whitespace = true
 charset = utf-8
 
 # md (GitHub shows code fences with 8 spaces)
 [*.md]
-indent_style = space
-indent_size = 2
 trim_trailing_whitespace = false
 
 [*.java]
+indent_style = tab
+indent_size = 4
 # Doc: https://youtrack.jetbrains.com/issue/IDEA-170643#focus=streamItem-27-3708697.0-0
 ij_java_imports_layout = $*,|,java.**,|,javax.**,|,org.**,|,com.**,|,com.diffplug.**,|,*
 ij_java_use_single_class_imports = true
 ij_java_class_count_to_use_import_on_demand = 999
 ij_java_names_count_to_use_import_on_demand = 999
 
 [*.xml.mustache]
-indent_style = space
+indent_size = 4
 
-[*.{yml,yaml}]
-indent_style = space
-indent_size = 2
+[*.template]
+indent_style = tab
+indent_size = 4
 
 # Prevent unexpected automatic indentation when crafting test-cases
 [/testlib/src/main/resources/**]

.github/renovate.json5

@@ -1,20 +1,20 @@
 {
-	"$schema": "https://docs.renovatebot.com/renovate-schema.json",
-	"extends": [
-		"config:recommended",
-	],
-	packageRules: [
-		{
-			groupName: 'Ktlint',
-			matchPackageNames: [
-				'com.pinterest.ktlint:*',
-			]
-		},
-		{
-			groupName: 'OpenRewrite',
-			matchPackageNames: [
-				'org.openrewrite.recipe:*',
-			],
-		},
-	]
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": [
+    "config:recommended",
+  ],
+  packageRules: [
+    {
+      groupName: 'Ktlint',
+      matchPackageNames: [
+        'com.pinterest.ktlint:*',
+      ]
+    },
+    {
+      groupName: 'OpenRewrite',
+      matchPackageNames: [
+        'org.openrewrite.recipe:*',
+      ],
+    },
+  ]
 }

lib/src/main/java/com/diffplug/spotless/npm/EslintFormatterStep.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2016-2025 DiffPlug
+ * Copyright 2016-2026 DiffPlug
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -87,7 +87,7 @@ private static class State extends NpmFormatterStepStateBase implements Serializ
 			super(stepName,
 					new NpmConfig(
 							replaceDevDependencies(
-									NpmResourceHelper.readUtf8StringFromClasspath(EslintFormatterStep.class, "/com/diffplug/spotless/npm/eslint-package.json"),
+									NpmResourceHelper.readUtf8StringFromClasspath(EslintFormatterStep.class, "/com/diffplug/spotless/npm/eslint-package.json.template"),
 									new TreeMap<>(devDependencies)),
 							NpmResourceHelper.readUtf8StringFromClasspath(EslintFormatterStep.class,
 									"/com/diffplug/spotless/npm/common-serve.js",

lib/src/main/java/com/diffplug/spotless/npm/PrettierFormatterStep.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2016-2025 DiffPlug
+ * Copyright 2016-2026 DiffPlug
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -68,7 +68,7 @@ private static class State extends NpmFormatterStepStateBase implements Serializ
 			super(stepName,
 					new NpmConfig(
 							replaceDevDependencies(
-									NpmResourceHelper.readUtf8StringFromClasspath(PrettierFormatterStep.class, "/com/diffplug/spotless/npm/prettier-package.json"),
+									NpmResourceHelper.readUtf8StringFromClasspath(PrettierFormatterStep.class, "/com/diffplug/spotless/npm/prettier-package.json.template"),
 									new TreeMap<>(devDependencies)),
 							NpmResourceHelper.readUtf8StringFromClasspath(PrettierFormatterStep.class,
 									"/com/diffplug/spotless/npm/common-serve.js",

lib/src/main/java/com/diffplug/spotless/npm/TsFmtFormatterStep.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2016-2025 DiffPlug
+ * Copyright 2016-2026 DiffPlug
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -75,7 +75,7 @@ public static class State extends NpmFormatterStepStateBase implements Serializa
 		public State(String stepName, Map<String, String> versions, File projectDir, File buildDir, File cacheDir, NpmPathResolver npmPathResolver, @Nullable TypedTsFmtConfigFile configFile, @Nullable Map<String, Object> inlineTsFmtSettings) throws IOException {
 			super(stepName,
 					new NpmConfig(
-							replaceDevDependencies(NpmResourceHelper.readUtf8StringFromClasspath(TsFmtFormatterStep.class, "/com/diffplug/spotless/npm/tsfmt-package.json"), new TreeMap<>(versions)),
+							replaceDevDependencies(NpmResourceHelper.readUtf8StringFromClasspath(TsFmtFormatterStep.class, "/com/diffplug/spotless/npm/tsfmt-package.json.template"), new TreeMap<>(versions)),
 							NpmResourceHelper.readUtf8StringFromClasspath(PrettierFormatterStep.class,
 									"/com/diffplug/spotless/npm/common-serve.js",
 									"/com/diffplug/spotless/npm/tsfmt-serve.js"),

lib/src/test/java/com/diffplug/spotless/npm/NodeServerLayoutTest.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 DiffPlug
+ * Copyright 2025-2026 DiffPlug
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -66,7 +66,7 @@ void itCalculatesDifferentNodeModulesDirForDifferentServeJs() throws IOException
 	}
 
 	static String prettierPackageJson(Map<String, String> dependencies) {
-		String templateContent = NpmResourceHelper.readUtf8StringFromClasspath(NodeServerLayoutTest.class, "/com/diffplug/spotless/npm/prettier-package.json");
+		String templateContent = NpmResourceHelper.readUtf8StringFromClasspath(NodeServerLayoutTest.class, "/com/diffplug/spotless/npm/prettier-package.json.template");
 		String dependenciesList = dependencies.entrySet().stream()
 				.map(entry -> "\"%s\": \"%s\"".formatted(entry.getKey(), entry.getValue()))
 				.reduce((a, b) -> a + ",\n  " + b)