diff --git a/data/wrappers b/data/wrappers
index 3a73771e5..ec5334f5a 100644
--- a/data/wrappers
+++ b/data/wrappers
@@ -11,6 +11,3 @@ phet-io-wrappers/record
 phet-io-wrappers/playback
 phet-io-wrappers/screenshot
 phet-io-wrappers/state
-phet-io-wrapper-arithmetic
-phet-io-wrapper-classroom-activity
-phet-io-wrapper-lab-book
diff --git a/js/grunt/buildRunnable.js b/js/grunt/buildRunnable.js
index 11455500f..f67539396 100644
--- a/js/grunt/buildRunnable.js
+++ b/js/grunt/buildRunnable.js
@@ -303,7 +303,7 @@ module.exports = async function( repo, minifyOptions, instrument, allHTML, brand
   }
 
   if ( brand === 'phet-io' ) {
-    await copySupplementalPhetioFiles( repo, version, englishTitle );
+    await copySupplementalPhetioFiles( repo, version, englishTitle, packageObject );
   }
 
   // Thumbnails and twitter card
diff --git a/js/grunt/getPhetLibs.js b/js/grunt/getPhetLibs.js
index a4652d38c..74e6504ba 100644
--- a/js/grunt/getPhetLibs.js
+++ b/js/grunt/getPhetLibs.js
@@ -68,6 +68,11 @@ module.exports = function getPhetLibs( repo, brand ) {
       phetLibs = phetLibs.concat( packageObject.phet[ brand ].phetLibs );
     }
 
+    // wrappers are also marked as phetLibs, so we can get their shas without listing them twice
+    if ( brand === 'phet-io' && packageObject.phet[ brand ] ) {
+      phetLibs = phetLibs.concat( packageObject.phet[ brand ].wrappers || [] );
+    }
+
     // sort and remove duplicates
     return _.uniq( phetLibs.sort() );
   }
diff --git a/js/grunt/phet-io/copySupplementalPhetioFiles.js b/js/grunt/phet-io/copySupplementalPhetioFiles.js
index f05767c42..bd5999dcb 100644
--- a/js/grunt/phet-io/copySupplementalPhetioFiles.js
+++ b/js/grunt/phet-io/copySupplementalPhetioFiles.js
@@ -72,7 +72,7 @@ const JSDOC_FILES = [
 ];
 const JSDOC_README_FILE = '../phet-io/doc/wrapper/phet-io-documentation_README.md';
 
-module.exports = async function( repo, version, simulationDisplayName ) {
+module.exports = async function( repo, version, simulationDisplayName, packageObject ) {
 
   const buildDir = `../${repo}/build/phet-io/`;
   const wrappersLocation = `${buildDir}${WRAPPERS_FOLDER}`;
@@ -226,8 +226,21 @@ module.exports = async function( repo, version, simulationDisplayName ) {
   const fullBlacklist = wrappersBlacklist.concat( libFileNames );
 
   // wrapping function for copying the wrappers to the build dir
-  const copyWrapper = function( src, dest ) {
-    copyDirectory( src, dest, filterWrapper, {
+  const copyWrapper = function( src, dest, wrapper, wrapperName ) {
+
+    const wrapperFilterWithNameFilter = function( abspath, contents ) {
+      const result = filterWrapper( abspath, contents );
+
+      // Support loading relative-path resources, like
+      //{ url: '../phet-io-wrapper-hookes-law-energy/sounds/precipitate-chimes-v1-shorter.mp3' }
+      // -->
+      //{ url: 'wrappers/hookes-law-energy/sounds/precipitate-chimes-v1-shorter.mp3' }
+      if ( wrapper && wrapperName && result ) {
+        return ChipperStringUtils.replaceAll( result, `../${wrapper}/`, `wrappers/${wrapperName}/` );
+      }
+      return result;
+    };
+    copyDirectory( src, dest, wrapperFilterWithNameFilter, {
       blacklist: fullBlacklist,
       minifyJS: true,
       minifyOptions: {
@@ -238,6 +251,15 @@ module.exports = async function( repo, version, simulationDisplayName ) {
 
   // Make sure to copy the phet-io-wrappers common wrapper code too.
   wrappers.push( WRAPPER_COMMON_FOLDER );
+
+  // Add sim-specific wrappers
+  const simSpecificWrappers = packageObject.phet &&
+                              packageObject.phet[ 'phet-io' ] &&
+                              packageObject.phet[ 'phet-io' ].wrappers ?
+                              packageObject.phet[ 'phet-io' ].wrappers : [];
+
+  simSpecificWrappers.forEach( simSpecificWrapper => wrappers.push( simSpecificWrapper ) );
+
   wrappers.forEach( function( wrapper ) {
 
     const wrapperParts = wrapper.split( '/' );
@@ -246,11 +268,11 @@ module.exports = async function( repo, version, simulationDisplayName ) {
     const wrapperName = wrapperParts.length > 1 ? wrapperParts[ wrapperParts.length - 1 ] : wrapperParts[ 0 ].replace( DEDICATED_REPO_WRAPPER_PREFIX, '' );
 
     // Copy the wrapper into the build dir /wrappers/, exclude the blacklist
-    copyWrapper( `../${wrapper}`, `${wrappersLocation}${wrapperName}` );
+    copyWrapper( `../${wrapper}`, `${wrappersLocation}${wrapperName}`, wrapper, wrapperName );
   } );
 
   // Copy the wrapper index into the top level of the build dir, exclude the blacklist
-  copyWrapper( '../phet-io-wrappers/index', `${buildDir}` );
+  copyWrapper( '../phet-io-wrappers/index', `${buildDir}`, null, null );
 
   // Create the lib file that is minified and publicly available under the /lib folder of the build
   handleLib( buildDir, filterWrapper );
diff --git a/package.json b/package.json
index b4ff39b13..e800922c6 100644
--- a/package.json
+++ b/package.json
@@ -10,6 +10,7 @@
     "babel-core": "^6.26.3",
     "babel-preset-env": "~1.6.1",
     "eslint": "~5.14.1",
+    "eslint-plugin-react": "^7.14.3",
     "grunt": "~1.0.0",
     "istanbul": "~0.4.5",
     "jimp": "^0.2.0",