diff --git a/.gitignore b/.gitignore
index 88e6855..597163c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,7 +2,6 @@
 /target/
 /~local/
 /.rogue-save/
-/build/
 /build/out/*.jar
 /build/in/*.jar
 *.log
diff --git a/README.md b/README.md
index fe1ef3d..f213911 100644
--- a/README.md
+++ b/README.md
@@ -55,8 +55,13 @@ more polished code, better docs, and cleaner hierarchy.
 
 ## BUILDING FROM SOURCE
 
-1. Export a jar with the `mightypork.*` packages and the `res` folder into 
-`build/in/build.jar`
+1. Export a jar with the following (all compiled sources and res) into `build/in/build.jar`:
+   - `mightypork.gamecore.*`
+   - `mightypork.rogue.*`
+   - `mightypork.ion.*`
+   - `mightypork.dynmath.*`
+   - `res` folder with Rogue resources
+
 2. Run `make` to create a stand-alone executable jar in `build/out/release.jar`
 3. Use `make run` to execute it
 
diff --git a/build/export_new.jardesc b/build/export_new.jardesc
new file mode 100644
index 0000000..44110f7
--- /dev/null
+++ b/build/export_new.jardesc
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<jardesc>
+    <jar path="Rogue/build/in/build.jar"/>
+    <options buildIfNeeded="true" compress="false" descriptionLocation="/Rogue/build/export_new.jardesc" exportErrors="true" exportWarnings="true" includeDirectoryEntries="true" overwrite="true" saveDescription="true" storeRefactorings="false" useSourceFolders="false"/>
+    <storedRefactorings deprecationInfo="true" structuralOnly="false"/>
+    <selectedProjects/>
+    <manifest generateManifest="true" manifestLocation="" manifestVersion="1.0" reuseManifest="false" saveManifest="false" usesManifest="true">
+        <sealing sealJar="false">
+            <packagesToSeal/>
+            <packagesToUnSeal/>
+        </sealing>
+    </manifest>
+    <selectedElements exportClassFiles="true" exportJavaFiles="false" exportOutputFolder="false">
+        <javaElement handleIdentifier="=DynMath/src"/>
+        <javaElement handleIdentifier="=Rogue/src"/>
+        <javaElement handleIdentifier="=Ion/src"/>
+        <folder path="/Rogue/res"/>
+        <file path="/Rogue/LICENSE.txt"/>
+    </selectedElements>
+</jardesc>