diff --git a/core/build.xml b/core/build.xml
index 21e7bc4bc..1e26264b3 100644
--- a/core/build.xml
+++ b/core/build.xml
@@ -25,13 +25,19 @@
   </target>
 
   <!-- Base URL for the current version of JOGL. -->
+  <!--
   <property name="jogl.url"
             value="https://jogamp.org/deployment/archive/rc/v2.4.0-rc-20210111/jar" />
+  -->
   <!-- This is for posterity, and is not used at present. When updating
        the release, also make a copy of the files on download.processing.org
        so that they can be retrieved even after the original link goes dead. -->
+  <!--
   <property name="jogl.url.backup"
             value="https://download.processing.org/jogl/v2.4.0-rc-20210111" />
+  -->
+  <property name="jogl.url"
+            value="https://download.processing.org/jogl/v2.4.0-rc-20210111x" />
 
   <available file="library/jogl-all.jar" property="jogl.present" />
 
@@ -42,17 +48,77 @@
 
   <target name="download-jogl" unless="jogl.present">
     <get dest="library" usetimestamp="true" ignoreerrors="${jogl.ignorable}">
+      <!--
+      <url url="${jogl.url}/gluegen-rt-natives-linux-aarch64.jar" />
       <url url="${jogl.url}/gluegen-rt-natives-linux-amd64.jar" />
-      <url url="${jogl.url}/gluegen-rt-natives-linux-armv6hf.jar" />
-      <url url="${jogl.url}/gluegen-rt-natives-macosx-universal.jar" />
+      <url url="${jogl.url}/gluegen-rt-natives-linux-arm.jar" />
+      <url url="${jogl.url}/gluegen-rt-natives-macos-aarch64.jar" />
+      <url url="${jogl.url}/gluegen-rt-natives-macos-x86_64.jar" />
       <url url="${jogl.url}/gluegen-rt-natives-windows-amd64.jar" />
+      -->
       <url url="${jogl.url}/gluegen-rt.jar" />
+      <!--
+      <url url="${jogl.url}/jogl-all-natives-linux-aarch64.jar" />
       <url url="${jogl.url}/jogl-all-natives-linux-amd64.jar" />
-      <url url="${jogl.url}/jogl-all-natives-linux-armv6hf.jar" />
-      <url url="${jogl.url}/jogl-all-natives-macosx-universal.jar" />
+      <url url="${jogl.url}/jogl-all-natives-linux-arm.jar" />
+      <url url="${jogl.url}/jogl-all-natives-macos-aarch64.jar" />
+      <url url="${jogl.url}/jogl-all-natives-macos-x86_64.jar" />
       <url url="${jogl.url}/jogl-all-natives-windows-amd64.jar" />
+      -->
       <url url="${jogl.url}/jogl-all.jar" />
     </get>
+
+    <antcall target="retrieve-variant">
+      <param name="variant" value="linux-aarch64" />
+    </antcall>
+    <antcall target="retrieve-variant">
+      <param name="variant" value="linux-arm" />
+    </antcall>
+    <antcall target="retrieve-variant">
+      <param name="variant" value="linux-amd64" />
+    </antcall>
+    <antcall target="retrieve-variant">
+      <param name="variant" value="macos-aarch64" />
+    </antcall>
+    <antcall target="retrieve-variant">
+      <param name="variant" value="macos-x86_64" />
+    </antcall>
+    <antcall target="retrieve-variant">
+      <param name="variant" value="windows-amd64" />
+    </antcall>
+  </target>
+
+  <target name="retrieve-variant">
+    <get src="${jogl.url}/gluegen-rt-natives-${variant}.jar"
+         dest="temp-gluegen.jar"
+         ignoreerrors="${jogl.ignorable}"
+         usetimestamp="true" />
+    <get src="${jogl.url}/jogl-all-natives-${variant}.jar"
+         dest="temp-jogl.jar"
+         ignoreerrors="${jogl.ignorable}"
+         usetimestamp="true" />
+
+    <mkdir dir="library/${variant}" />
+
+    <unzip dest="library/${variant}" src="temp-gluegen.jar" overwrite="true">
+      <patternset>
+        <include name="**/*.dll" />
+        <include name="**/*.dylib" />
+        <include name="**/*.so" />
+      </patternset>
+      <mapper type="flatten" />
+    </unzip>
+    <unzip dest="library/${variant}" src="temp-jogl.jar" overwrite="true">
+      <patternset>
+        <include name="**/*.dll" />
+        <include name="**/*.dylib" />
+        <include name="**/*.so" />
+      </patternset>
+      <mapper type="flatten" />
+    </unzip>
+
+    <delete file="temp-gluegen.jar" />
+    <delete file="temp-jogl.jar" />
   </target>
 
   <path id="classpath.base">
diff --git a/core/library/.gitignore b/core/library/.gitignore
index 858865596..46a6dd5bc 100644
--- a/core/library/.gitignore
+++ b/core/library/.gitignore
@@ -1,3 +1,10 @@
 core.jar
+
 jogl-all-src.jar
 
+/macos-aarch64
+/linux-arm
+/linux-aarch64
+/macos-x86_64
+/linux-amd64
+/windows-amd64
diff --git a/core/library/export.txt b/core/library/export.txt
deleted file mode 100644
index 58d0cd877..000000000
--- a/core/library/export.txt
+++ /dev/null
@@ -1,10 +0,0 @@
-# If you want to support more platforms, visit jogamp.org to get the
-# natives libraries for the platform in question (i.e. Solaris).
-
-name = Core
-
-application.macosx=core.jar,jogl-all.jar,gluegen-rt.jar,jogl-all-natives-macosx-universal.jar,gluegen-rt-natives-macosx-universal.jar
-
-application.windows64=core.jar,gluegen-rt-natives-windows-amd64.jar,gluegen-rt.jar,javafx.base.jar,javafx.controls.jar,javafx.fxml.jar,javafx.graphics.jar,javafx.media.jar,javafx.swing.jar,jogl-all-natives-windows-amd64.jar,jogl-all.jar
-
-application.linux64=core.jar,jogl-all.jar,gluegen-rt.jar,jogl-all-natives-linux-amd64.jar,gluegen-rt-natives-linux-amd64.jar
diff --git a/core/todo.txt b/core/todo.txt
index ce0f1dad7..69a59e57d 100644
--- a/core/todo.txt
+++ b/core/todo.txt
@@ -1,4 +1,11 @@
 1279 (4.0b4)
+X put opengl libs for core into platform-specific subfolders
+X   get us ready for other platforms (M1 in particular)
+_   fixes Windows antivirus slowdowns
+_   https://github.com/processing/processing/issues/4783#issuecomment-269328168
+_   https://github.com/processing/processing/issues/4239
+_   https://jogamp.org/bugzilla/show_bug.cgi?id=1301
+_   https://stackoverflow.com/a/51100411
 
 api changes (in previous releases)
 X static versions of selectInput/selectOutput/selectFolder removed from PApplet
@@ -37,16 +44,9 @@ _   could implement this for the default, but also, SansSerif sucks
 _   https://stackoverflow.com/a/9482676
 _   in addition, it would need to be implemented for textWidth()
 
-_ put opengl libs for core into platform-specific subfolders?
-_   should fix Windows antivirus slowdowns
-_   https://github.com/processing/processing/issues/4783#issuecomment-269328168
-_   https://github.com/processing/processing/issues/4239
-_   https://jogamp.org/bugzilla/show_bug.cgi?id=1301
-_   https://stackoverflow.com/a/51100411
 _ would really be nice to pull out the OpenGL stuff
 _   though would require just a single PShader class in .opengl package
 _   way too messy, just need to stick with our base platforms
-_   also move the libs to their own folders? (instead of unpacking from jar)
 
 _ Better solution for frame/surface methods
 _   should it be requestSize() because the change is not immediate?