diff --git a/packages/react-aria-components/package.json b/packages/react-aria-components/package.json
index 6dde29cd818..0bfe9a35bf4 100644
--- a/packages/react-aria-components/package.json
+++ b/packages/react-aria-components/package.json
@@ -54,6 +54,10 @@
   "publishConfig": {
     "access": "public"
   },
+  "scripts": {
+    "prepack": "node ../../scripts/prepareForPublish.js prepare",
+    "postpack": "node ../../scripts/prepareForPublish.js restore"
+  },
   "dependencies": {
     "@internationalized/date": "^3.12.4",
     "@internationalized/string": "^3.2.10",
diff --git a/packages/react-aria-components/test/packing.test.js b/packages/react-aria-components/test/packing.test.js
new file mode 100644
index 00000000000..58c6f76e1a4
--- /dev/null
+++ b/packages/react-aria-components/test/packing.test.js
@@ -0,0 +1,117 @@
+const fs = require('fs');
+const os = require('os');
+const path = require('path');
+const {execFileSync} = require('child_process');
+const tar = require('tar');
+
+const root = path.resolve(__dirname, '../../..');
+const yarn = path.join(root, '.yarn/releases/yarn-4.18.0.cjs');
+const helper = path.join(root, 'scripts/prepareForPublish.js');
+const names = ['react-aria', 'react-stately', 'react-aria-components'];
+let fixture;
+const originals = new Map();
+
+beforeAll(() => {
+  fixture = fs.mkdtempSync(path.join(os.tmpdir(), 'spectrum-pack-'));
+  fs.writeFileSync(
+    path.join(fixture, 'package.json'),
+    JSON.stringify({private: true, workspaces: ['packages/*']})
+  );
+  for (let name of names) {
+    let manifest = JSON.parse(fs.readFileSync(path.join(root, 'packages', name, 'package.json')));
+    delete manifest.dependencies;
+    delete manifest.devDependencies;
+    delete manifest.peerDependencies;
+    manifest.scripts = {
+      prepack: `node "${helper}" prepare`,
+      postpack: `node "${helper}" restore`
+    };
+    let dir = path.join(fixture, 'packages', name);
+    fs.mkdirSync(path.join(dir, 'exports'), {recursive: true});
+    fs.mkdirSync(path.join(dir, 'src'));
+    fs.mkdirSync(path.join(dir, 'dist/exports'), {recursive: true});
+    fs.writeFileSync(path.join(dir, 'exports/index.ts'), 'export const source = true;');
+    fs.writeFileSync(path.join(dir, 'src/index.ts'), 'export const source = true;');
+    fs.writeFileSync(path.join(dir, 'dist/exports/index.mjs'), 'export const built = true;');
+    let contents = JSON.stringify(manifest, null, 2) + '\n';
+    originals.set(name, contents);
+    fs.writeFileSync(path.join(dir, 'package.json'), contents);
+  }
+  execFileSync(process.execPath, [yarn, 'install', '--mode=skip-build'], {
+    cwd: fixture,
+    env: {...process.env, YARN_ENABLE_IMMUTABLE_INSTALLS: 'false'},
+    stdio: 'inherit'
+  });
+}, 120000);
+
+afterAll(() => {
+  fs.rmSync(fixture, {recursive: true, force: true});
+});
+
+async function checkArchive(name, archive) {
+  let entries = [];
+  await tar.list({file: archive, onReadEntry: entry => entries.push(entry.path)});
+  expect(entries.some(entry => /^package\/(src|exports)\//.test(entry))).toBe(false);
+  let destination = fs.mkdtempSync(path.join(fixture, 'unpacked-'));
+  await tar.extract({file: archive, cwd: destination});
+  let manifest = JSON.parse(fs.readFileSync(path.join(destination, 'package/package.json')));
+  let original = JSON.parse(originals.get(name));
+  expect(manifest.source).toBeUndefined();
+  for (let [key, conditions] of Object.entries(original.exports)) {
+    if (conditions && typeof conditions === 'object') {
+      let expected = {...conditions};
+      delete expected.source;
+      expect(manifest.exports[key]).toEqual(expected);
+    } else {
+      expect(manifest.exports[key]).toEqual(conditions);
+    }
+  }
+  expect(fs.readFileSync(path.join(fixture, 'packages', name, 'package.json'), 'utf8')).toBe(
+    originals.get(name)
+  );
+  expect(
+    fs.existsSync(path.join(fixture, 'packages', name, 'exports/.package-json-before-pack'))
+  ).toBe(false);
+}
+
+test.each(names)(
+  'npm packing %s omits source references and restores local resolution',
+  async name => {
+    let dir = path.join(fixture, 'packages', name);
+    execFileSync('npm', ['pack', '--pack-destination', dir], {cwd: dir});
+    let archive = fs.readdirSync(dir).find(file => file.endsWith('.tgz'));
+    await checkArchive(name, path.join(dir, archive));
+    fs.unlinkSync(path.join(dir, archive));
+  },
+  120000
+);
+
+test.each(names)(
+  'Yarn packing %s omits source references and restores local resolution',
+  async name => {
+    let dir = path.join(fixture, 'packages', name);
+    let archive = path.join(fixture, `${name}-yarn.tgz`);
+    execFileSync(process.execPath, [yarn, 'pack', '--out', archive], {cwd: dir});
+    await checkArchive(name, archive);
+  },
+  120000
+);
+
+test('direct Verdaccio seeding strips source in tarballs and registry manifests', async () => {
+  let storage = path.join(fixture, 'storage');
+  let input = names.map(name => JSON.stringify({name, location: `packages/${name}`})).join('\n');
+  execFileSync(process.execPath, [path.join(root, 'scripts/verdaccio-seed.js'), storage], {
+    cwd: fixture,
+    input
+  });
+  for (let name of names) {
+    let dir = path.join(storage, name);
+    let archive = fs.readdirSync(dir).find(file => file.endsWith('.tgz'));
+    await checkArchive(name, path.join(dir, archive));
+    let registry = JSON.parse(fs.readFileSync(path.join(dir, 'package.json')));
+    let manifest = Object.values(registry.versions)[0];
+    expect(manifest.source).toBeUndefined();
+    expect(manifest.exports['.'].source).toBeUndefined();
+    expect(manifest.exports['./*'].source).toBeUndefined();
+  }
+}, 120000);
diff --git a/packages/react-aria/package.json b/packages/react-aria/package.json
index 70d2b0de6a5..5fdf0106c44 100644
--- a/packages/react-aria/package.json
+++ b/packages/react-aria/package.json
@@ -47,6 +47,10 @@
     "type": "git",
     "url": "https://github.com/adobe/react-spectrum"
   },
+  "scripts": {
+    "prepack": "node ../../scripts/prepareForPublish.js prepare",
+    "postpack": "node ../../scripts/prepareForPublish.js restore"
+  },
   "dependencies": {
     "@internationalized/date": "^3.12.4",
     "@internationalized/number": "^3.6.9",
diff --git a/packages/react-stately/package.json b/packages/react-stately/package.json
index 32bf4f983e1..d792f4a1276 100644
--- a/packages/react-stately/package.json
+++ b/packages/react-stately/package.json
@@ -37,6 +37,10 @@
     "type": "git",
     "url": "https://github.com/adobe/react-spectrum"
   },
+  "scripts": {
+    "prepack": "node ../../scripts/prepareForPublish.js prepare",
+    "postpack": "node ../../scripts/prepareForPublish.js restore"
+  },
   "dependencies": {
     "@internationalized/date": "^3.12.4",
     "@internationalized/number": "^3.6.9",
diff --git a/scripts/prepareForPublish.js b/scripts/prepareForPublish.js
new file mode 100644
index 00000000000..7dd383bcf1b
--- /dev/null
+++ b/scripts/prepareForPublish.js
@@ -0,0 +1,30 @@
+'use strict';
+
+const fs = require('fs');
+const path = require('path');
+
+function prepare(dir) {
+  let manifestPath = path.join(dir, 'package.json');
+  let contents = fs.readFileSync(manifestPath, 'utf8');
+  let manifest = JSON.parse(contents);
+  fs.writeFileSync(path.join(dir, 'exports', '.package-json-before-pack'), contents, {flag: 'wx'});
+  delete manifest.source;
+  for (let conditions of Object.values(manifest.exports)) {
+    if (conditions && typeof conditions === 'object') {
+      delete conditions.source;
+    }
+  }
+  fs.writeFileSync(manifestPath, JSON.stringify(manifest, null, 2) + '\n');
+}
+
+function restore(dir) {
+  let backup = path.join(dir, 'exports', '.package-json-before-pack');
+  fs.writeFileSync(path.join(dir, 'package.json'), fs.readFileSync(backup));
+  fs.unlinkSync(backup);
+}
+
+module.exports = {prepare, restore};
+
+if (require.main === module) {
+  module.exports[process.argv[2]](process.cwd());
+}
diff --git a/scripts/verdaccio-seed.js b/scripts/verdaccio-seed.js
index b8a5c777a6e..45759a9cd41 100644
--- a/scripts/verdaccio-seed.js
+++ b/scripts/verdaccio-seed.js
@@ -19,6 +19,7 @@ const path = require('path');
 const crypto = require('crypto');
 const packlist = require('npm-packlist');
 const tar = require('tar');
+const {prepare, restore} = require('./prepareForPublish');
 
 const REGISTRY = process.env.SEED_REGISTRY || 'http://localhost:4000';
 const CONCURRENCY = Number(process.env.SEED_CONCURRENCY) || 16;
@@ -40,7 +41,7 @@ function tarballBuffer(dir, files) {
 
 async function seedOne(storagePath, location) {
   const dir = path.resolve(process.cwd(), location);
-  const manifest = JSON.parse(fs.readFileSync(path.join(dir, 'package.json'), 'utf8'));
+  let manifest = JSON.parse(fs.readFileSync(path.join(dir, 'package.json'), 'utf8'));
   if (manifest.private) {
     return null;
   }
@@ -49,8 +50,20 @@ async function seedOne(storagePath, location) {
     throw new Error(`Workspace at ${location} is missing name or version`);
   }
 
-  const files = await packlist({path: dir});
-  const buf = await tarballBuffer(dir, files);
+  const stripSource = manifest.files?.includes('!exports/**') && manifest.exports?.['.']?.source;
+  let buf;
+  if (stripSource) {
+    prepare(dir);
+  }
+  try {
+    manifest = JSON.parse(fs.readFileSync(path.join(dir, 'package.json'), 'utf8'));
+    const files = await packlist({path: dir});
+    buf = await tarballBuffer(dir, files);
+  } finally {
+    if (stripSource) {
+      restore(dir);
+    }
+  }
 
   const shasum = crypto.createHash('sha1').update(buf).digest('hex');
   const integrity = 'sha512-' + crypto.createHash('sha512').update(buf).digest('base64');
@@ -126,7 +139,7 @@ async function main() {
   if (fs.existsSync(dbPath)) {
     try {
       db = JSON.parse(fs.readFileSync(dbPath, 'utf8'));
-    } catch (e) {
+    } catch {
       // corrupt/empty db, start fresh
     }
   }