Use rendition and minor refactoring

.sbtopts

@@ -1 +1 @@
--J-Xmx2G
+-J-Xmx4G

build.sbt

@@ -42,6 +42,7 @@ val V = new {
   val decline         = "2.4.0"
   val jsoniter        = "2.19.0"
   val weaver          = "0.8.1"
+  val rendition       = "0.0.3"
   val http4sJdkClient = "0.8.0"
   val organizeImports = "0.6.0"
 
@@ -208,7 +209,8 @@ lazy val generate = projectMatrix
   .dependsOn(meta)
   .defaultAxes(V.default*)
   .settings(
-    name := "generate"
+    name                                        := "generate",
+    libraryDependencies += "com.indoorvivants" %%% "rendition" % V.rendition
   )
   .jvmPlatform(V.jvmScalaVersions)
   .settings(noPublishing)

modules/generate/src/main/scala/generate.scala

@@ -9,6 +9,8 @@ import scala.reflect.TypeTest
 
 import langoustine.meta.*
 
+import rendition.*
+
 @main def run(path: String) =
   import upickle.default.*
   import json.{*, given}
@@ -23,14 +25,14 @@ import langoustine.meta.*
 
   import Render.*
 
-  given Render.Config(indents = Indentation(0), indentSize = IndentationSize(2))
-
-  def inFile(s: String)(f: LineBuilder => Unit) =
-    val out = Render.LineBuilder()
+  def inFile(s: String)(f: Rendering => Unit) =
+    val out = LineBuilder()
     out.appendLine(Constants.LICENCE)
     out.appendLine("")
 
-    f(out)
+    out.render { r =>
+      f(r)
+    }
     Using.resource(new FileWriter(Paths.get(path, s).toFile())) { fw =>
       fw.write(out.result)
     }