diff --git a/build.mill b/build.mill
index 821f7dc3260..f5376616b8d 100644
--- a/build.mill
+++ b/build.mill
@@ -117,9 +117,9 @@ object Deps {
   val asmTree = ivy"org.ow2.asm:asm-tree:9.7.1"
   val bloopConfig = ivy"ch.epfl.scala::bloop-config:1.5.5"
 
-  val coursierVersion = "2.1.24"
+  val coursierVersion = "2.1.25-M1"
   val coursier = ivy"io.get-coursier::coursier:$coursierVersion"
-  val coursierInterface = ivy"io.get-coursier:interface:1.0.27"
+  val coursierInterface = ivy"io.get-coursier:interface:1.0.29-M1"
   val coursierJvm = ivy"io.get-coursier::coursier-jvm:$coursierVersion"
 
   val cask = ivy"com.lihaoyi::cask:0.9.4"
@@ -177,7 +177,7 @@ object Deps {
   val semanticDbJava = ivy"com.sourcegraph:semanticdb-java:0.10.3"
   val sourcecode = ivy"com.lihaoyi::sourcecode:0.4.2"
   val upickle = ivy"com.lihaoyi::upickle:3.3.1"
-  val windowsAnsi = ivy"io.github.alexarchambault.windows-ansi:windows-ansi:0.0.6"
+  val nativeTerminal = ivy"io.github.alexarchambault.native-terminal:native-terminal:0.0.7"
   val zinc = ivy"org.scala-sbt::zinc:1.10.7"
   // keep in sync with doc/antora/antory.yml
   val bsp4j = ivy"ch.epfl.scala:bsp4j:2.2.0-M2"
diff --git a/main/client/src/mill/main/client/Util.java b/main/client/src/mill/main/client/Util.java
index 30c169f905f..1f831f20bc3 100644
--- a/main/client/src/mill/main/client/Util.java
+++ b/main/client/src/mill/main/client/Util.java
@@ -41,6 +41,25 @@ public static final int ExitServerCodeWhenVersionMismatch() {
       !System.getProperty("java.specification.version").startsWith("1.");
   private static Charset utf8 = Charset.forName("UTF-8");
 
+  private static final boolean hasConsole0;
+
+  static {
+
+    Console console = System.console();
+
+    boolean foundConsole;
+    if (console != null) {
+      try {
+        Method method = console.getClass().getMethod("isTerminal");
+        foundConsole = (Boolean) method.invoke(console);
+      } catch (InvocationTargetException | NoSuchMethodException | IllegalAccessException ignored) {
+        foundConsole = true;
+      }
+    } else foundConsole = false;
+
+    hasConsole0 = foundConsole;
+  }
+
   /**
    * Determines if we have an interactive console attached to the application.
    * <p>
@@ -54,16 +73,7 @@ public static final int ExitServerCodeWhenVersionMismatch() {
    * both JDK versions before 22 and later.
    */
   public static boolean hasConsole() {
-    Console console = System.console();
-
-    if (console != null) {
-      try {
-        Method method = console.getClass().getMethod("isTerminal");
-        return (Boolean) method.invoke(console);
-      } catch (InvocationTargetException | NoSuchMethodException | IllegalAccessException ignored) {
-        return true;
-      }
-    } else return false;
+    return hasConsole0;
   }
 
   public static String[] parseArgs(InputStream argStream) throws IOException {
diff --git a/main/package.mill b/main/package.mill
index 00a02c4e347..05a41ef102f 100644
--- a/main/package.mill
+++ b/main/package.mill
@@ -11,7 +11,7 @@ object `package` extends RootModule with build.MillStableScalaModule with BuildI
 
   def moduleDeps = Seq(eval, resolve, client)
   def ivyDeps = Agg(
-    build.Deps.windowsAnsi,
+    build.Deps.nativeTerminal,
     build.Deps.coursierInterface,
     build.Deps.mainargs,
     build.Deps.requests,
diff --git a/runner/client/src/mill/runner/client/MillProcessLauncher.java b/runner/client/src/mill/runner/client/MillProcessLauncher.java
index 9eff9a105b2..d3a2ae2b2d2 100644
--- a/runner/client/src/mill/runner/client/MillProcessLauncher.java
+++ b/runner/client/src/mill/runner/client/MillProcessLauncher.java
@@ -2,7 +2,8 @@
 
 import static mill.main.client.OutFiles.*;
 
-import io.github.alexarchambault.windowsansi.WindowsAnsi;
+import io.github.alexarchambault.nativeterm.NativeTerminal;
+import io.github.alexarchambault.nativeterm.TerminalSize;
 import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
@@ -14,6 +15,7 @@
 import mill.main.client.EnvVars;
 import mill.main.client.ServerFiles;
 import mill.main.client.Util;
+import org.fusesource.jansi.internal.OSInfo;
 
 public class MillProcessLauncher {
 
@@ -248,15 +250,72 @@ static int getTerminalDim(String s, boolean inheritError) throws Exception {
 
   private static AtomicReference<String> memoizedTerminalDims = new AtomicReference();
 
+  private static final boolean canUseNativeTerminal;
+
+  static {
+    // Load jansi native library
+    // We pre-compute the library location in the coursier archive cache, so that
+    // we don't need to load the whole of coursier upfront if the native library file
+    // is already in cache.
+    // Loading the native library on our own allows to speed things compared to what jansi would
+    // have done on its own (reading the library in its resources and writing it in a temporary
+    // location upon every new Mill run)
+    String jansiVersion = mill.runner.client.Versions.jansiVersion();
+    File archiveCacheLocation;
+    try {
+      archiveCacheLocation = coursier.paths.CachePath.defaultArchiveCacheDirectory();
+    } catch (IOException ex) {
+      throw new RuntimeException(ex);
+    }
+    String jansiLibPathInArchive = "org/fusesource/jansi/internal/native/" + OSInfo.getNativeLibFolderPathForCurrentOS() + "/" + System.mapLibraryName("jansi").replace(".dylib", ".jnilib");
+    File jansiLib = new File(
+      archiveCacheLocation,
+      "https/repo1.maven.org/maven2/org/fusesource/jansi/jansi/" + jansiVersion + "/jansi-" + jansiVersion + ".jar/" + jansiLibPathInArchive
+    );
+    if (!jansiLib.exists()) {
+      coursierapi.ArchiveCache archiveCache = coursierapi.ArchiveCache.create();
+      File jansiDir = archiveCache.get(coursierapi.Artifact.of("https://repo1.maven.org/maven2/org/fusesource/jansi/jansi/" + jansiVersion + "/jansi-" + jansiVersion + ".jar"));
+      jansiLib = new File(jansiDir, jansiLibPathInArchive); // just in case, should be the same value as before
+    }
+    System.load(jansiLib.getAbsolutePath());
+
+    // Tell jansi not to attempt to load a native library on its own
+    Class cls = org.fusesource.jansi.internal.JansiLoader.class;
+    java.lang.reflect.Field fld;
+    try {
+      fld = cls.getDeclaredField("loaded");
+    } catch (NoSuchFieldException ex) {
+      throw new RuntimeException(ex);
+    }
+    fld.setAccessible(true);
+    try {
+      fld.set(null, Boolean.TRUE);
+    } catch (IllegalAccessException ex) {
+      throw new RuntimeException(ex);
+    }
+
+    boolean canUse;
+    if (mill.main.client.Util.hasConsole()) {
+      try {
+        NativeTerminal.getSize();
+        canUse = true;
+      } catch (Throwable ex) {
+        canUse = false;
+      }
+    } else canUse = false;
+
+    canUseNativeTerminal = canUse;
+  }
+
   static void writeTerminalDims(boolean tputExists, Path serverDir) throws Exception {
     String str;
 
     try {
-      if (java.lang.System.console() == null) str = "0 0";
+      if (!mill.main.client.Util.hasConsole()) str = "0 0";
       else {
-        if (isWin()) {
+        if (canUseNativeTerminal) {
 
-          WindowsAnsi.Size size = WindowsAnsi.terminalSize();
+          TerminalSize size = NativeTerminal.getSize();
           int width = size.getWidth();
           int height = size.getHeight();
           str = width + " " + height;
diff --git a/runner/package.mill b/runner/package.mill
index 645765218fd..867719dc40d 100644
--- a/runner/package.mill
+++ b/runner/package.mill
@@ -10,15 +10,25 @@ object `package` extends RootModule with build.MillPublishScalaModule {
     def buildInfoPackageName = "mill.runner.client"
     def moduleDeps = Seq(build.main.client)
     def ivyDeps = Agg(
-      build.Deps.windowsAnsi,
+      build.Deps.nativeTerminal,
       build.Deps.coursier,
+      build.Deps.coursierInterface,
       build.Deps.coursierJvm,
       build.Deps.logback
     )
     def buildInfoObjectName = "Versions"
-    def buildInfoMembers = Seq(
-      BuildInfo.Value("coursierJvmIndexVersion", build.Deps.coursierJvmIndexVersion)
-    )
+    def buildInfoMembers = Task {
+      val jansiVersion = compileClasspath().map(_.path.last)
+        .find(name => name.startsWith("jansi-") && name.endsWith(".jar"))
+        .map(_.stripPrefix("jansi-").stripSuffix(".jar"))
+        .getOrElse {
+          sys.error("Cannot get jansi version from compile class path")
+        }
+      Seq(
+        BuildInfo.Value("coursierJvmIndexVersion", build.Deps.coursierJvmIndexVersion),
+        BuildInfo.Value("jansiVersion", jansiVersion)
+      )
+    }
   }
 
   def moduleDeps = Seq(
diff --git a/scalalib/src/mill/scalalib/JsonFormatters.scala b/scalalib/src/mill/scalalib/JsonFormatters.scala
index 3b2d879e6e0..e32c5a00754 100644
--- a/scalalib/src/mill/scalalib/JsonFormatters.scala
+++ b/scalalib/src/mill/scalalib/JsonFormatters.scala
@@ -7,6 +7,26 @@ trait JsonFormatters {
   implicit lazy val extensionFormat: RW[coursier.core.Extension] = upickle.default.macroRW
 
   implicit lazy val modFormat: RW[coursier.Module] = upickle.default.macroRW
+  implicit lazy val versionConstraintFormat: RW[coursier.version.VersionConstraint] =
+    implicitly[RW[String]].bimap(
+      _.asString,
+      coursier.version.VersionConstraint(_)
+    )
+  implicit lazy val versionIntervalFormat0: RW[coursier.version.VersionInterval] =
+    upickle.default.macroRW
+  implicit lazy val versionFormat0: RW[coursier.version.Version] =
+    implicitly[RW[String]].bimap(
+      _.asString,
+      coursier.version.Version(_)
+    )
+  implicit lazy val variantSelectorFormat: RW[coursier.core.VariantSelector] =
+    RW.merge(
+      upickle.default.macroRW[coursier.core.VariantSelector.ConfigurationBased]
+    )
+  implicit lazy val variantFormat: RW[coursier.core.Variant] =
+    RW.merge(
+      upickle.default.macroRW[coursier.core.Variant.Configuration]
+    )
   implicit lazy val bomDepFormat: RW[coursier.core.BomDependency] = upickle.default.macroRW
   implicit lazy val overridesFormat: RW[coursier.core.Overrides] =
     implicitly[RW[coursier.core.DependencyManagement.Map]].bimap(