diff --git a/package.json b/package.json
index 446fb376c..eb0e2d24d 100644
--- a/package.json
+++ b/package.json
@@ -5,6 +5,7 @@
   "type": "module",
   "scripts": {
     "clean": "pnpm -r --if-present run clean && rimraf coverage",
+    "dev": "concurrently --names build,sandbox \"pnpm --filter @adobe/alloy run build:watch\" \"pnpm --filter @adobe/alloy-sandbox-browser run start\"",
     "lint": "eslint --cache --fix \"*.{js,cjs,mjs,jsx}\" \"{sandboxes/*/src,packages/*/{src,test,scripts}}/**/*.{js,cjs,mjs,jsx}\"",
     "format": "prettier --write \"*.{html,js,cjs,mjs,jsx}\" \"{sandboxes/*/src,packages/*/{src,test,scripts}}/**/*.{html,js,cjs,mjs,jsx}\"",
     "types": "tsc",
@@ -52,6 +53,7 @@
     "@vitest/eslint-plugin": "^1.6.5",
     "baseline-browser-mapping": "^2.9.11",
     "chalk": "^5.6.2",
+    "concurrently": "^9.2.1",
     "date-fns": "^4.1.0",
     "eslint": "^9.39.2",
     "eslint-config-prettier": "^10.1.8",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 4d6115e85..7d2551be2 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -35,6 +35,9 @@ importers:
       chalk:
         specifier: ^5.6.2
         version: 5.6.2
+      concurrently:
+        specifier: ^9.2.1
+        version: 9.2.1
       date-fns:
         specifier: ^4.1.0
         version: 4.1.0
@@ -2417,6 +2420,11 @@ packages:
   concat-map@0.0.1:
     resolution: {integrity: sha512-/Srv4dswyQNBfohGpz9o6Yb3Gz3SrUDqBH5rTuhGR7ahtlbYKnVxw2bCFMRljaA7EXHaXZ8wsHdodFvbkhKmqg==}
 
+  concurrently@9.2.1:
+    resolution: {integrity: sha512-fsfrO0MxV64Znoy8/l1vVIjjHa29SZyyqPgQBwhiDcaW8wJc2W3XWVOGx4M3oJBnv/zdUZIIp1gDeS98GzP8Ng==}
+    engines: {node: '>=18'}
+    hasBin: true
+
   convert-source-map@2.0.0:
     resolution: {integrity: sha512-Kvp459HrV2FEJ1CAsi1Ku+MY3kasH19TFykTz2xWmMeq6bk2NU3XXvfJ+Q61m0xktWwt+1HSYf3JZsTms3aRJg==}
 
@@ -2960,16 +2968,19 @@ packages:
 
   glob@10.5.0:
     resolution: {integrity: sha512-DfXN8DfhJ7NH3Oe7cFmu3NCu1wKbkReJ8TorzSAFbSKrlNaQSKfIzqYqVY8zlbs2NLBbWpRiU52GX2PbaBVNkg==}
+    deprecated: Old versions of glob are not supported, and contain widely publicized security vulnerabilities, which have been fixed in the current version. Please update. Support for old versions may be purchased (at exorbitant rates) by contacting i@izs.me
     hasBin: true
 
   glob@11.0.3:
     resolution: {integrity: sha512-2Nim7dha1KVkaiF4q6Dj+ngPPMdfvLJEOpZk/jKiUAkqKebpGAWQXAq9z1xu9HKu5lWfqw/FASuccEjyznjPaA==}
     engines: {node: 20 || >=22}
+    deprecated: Old versions of glob are not supported, and contain widely publicized security vulnerabilities, which have been fixed in the current version. Please update. Support for old versions may be purchased (at exorbitant rates) by contacting i@izs.me
     hasBin: true
 
   glob@11.1.0:
     resolution: {integrity: sha512-vuNwKSaKiqm7g0THUBu2x7ckSs3XJLXE+2ssL7/MfTGPLLcrJQ/4Uq1CjPTtO5cCIiRxqvN6Twy1qOwhL0Xjcw==}
     engines: {node: 20 || >=22}
+    deprecated: Old versions of glob are not supported, and contain widely publicized security vulnerabilities, which have been fixed in the current version. Please update. Support for old versions may be purchased (at exorbitant rates) by contacting i@izs.me
     hasBin: true
 
   glob@13.0.0:
@@ -2978,12 +2989,12 @@ packages:
 
   glob@7.2.3:
     resolution: {integrity: sha512-nFR0zLpU2YCaRxwoCJvL6UvCH2JFyFVIvwTLsIf21AuHlMskA1hhTdk+LlYJtOlYt9v6dvszD2BGRqBL+iQK9Q==}
-    deprecated: Glob versions prior to v9 are no longer supported
+    deprecated: Old versions of glob are not supported, and contain widely publicized security vulnerabilities, which have been fixed in the current version. Please update. Support for old versions may be purchased (at exorbitant rates) by contacting i@izs.me
 
   glob@8.1.0:
     resolution: {integrity: sha512-r8hpEjiQEYlF2QU0df3dS+nxxSIreXQS1qRhMJM0Q5NDdR386C7jb7Hwwod8Fgiuex+k0GFjgft18yvxm5XoCQ==}
     engines: {node: '>=12'}
-    deprecated: Glob versions prior to v9 are no longer supported
+    deprecated: Old versions of glob are not supported, and contain widely publicized security vulnerabilities, which have been fixed in the current version. Please update. Support for old versions may be purchased (at exorbitant rates) by contacting i@izs.me
 
   globals@14.0.0:
     resolution: {integrity: sha512-oahGvuMGQlPw/ivIYBjVSrWAfWLBeku5tpPE2fOPLi+WHffIWbuh2tCjhyQhTBPMf5E9jDEH4FOmTYgYwbKwtQ==}
@@ -4186,6 +4197,9 @@ packages:
   run-parallel@1.2.0:
     resolution: {integrity: sha512-5l4VyZR86LZ/lDxZTR6jqL8AFE2S0IFLMP26AbjsLVADxHdhB/c0GUsH+y39UfCi3dzz8OlQuPmnaJOMoDHQBA==}
 
+  rxjs@7.8.2:
+    resolution: {integrity: sha512-dhKf903U/PQZY6boNNtAGdWbG85WAbjT/1xYoZIC7FAY0yWapOBQVsVrDl58W86//e1VpMNBtRV4MaXfdMySFA==}
+
   safe-array-concat@1.1.3:
     resolution: {integrity: sha512-AURm5f0jYEOydBj7VQlVvDrjeFgthDdEF5H1dP+6mNpoXOMo1quQqJ4wvJDyRZ9+pO3kGWoOdmV08cSv2aJV6Q==}
     engines: {node: '>=0.4'}
@@ -4257,6 +4271,10 @@ packages:
     resolution: {integrity: sha512-7++dFhtcx3353uBaq8DDR4NuxBetBzC7ZQOhmTQInHEd6bSrXdiEyzCvG07Z44UYdLShWUyXt5M/yhz8ekcb1A==}
     engines: {node: '>=8'}
 
+  shell-quote@1.8.3:
+    resolution: {integrity: sha512-ObmnIF4hXNg1BqhnHmgbDETF8dLPCggZWBjkQfhZpbszZnYur5DUljTcCHii5LC3J5E0yeO/1LIMyH+UvHQgyw==}
+    engines: {node: '>= 0.4'}
+
   side-channel-list@1.0.0:
     resolution: {integrity: sha512-FCLHtRD/gnpCiCHEiJLOwdmFP+wzCmDEkc9y7NsYxeF4u7Btsn1ZuwgwJGxImImHicJArLP4R0yX4c2KCrMrTA==}
     engines: {node: '>= 0.4'}
@@ -4440,6 +4458,10 @@ packages:
     resolution: {integrity: sha512-qpCAvRl9stuOHveKsn7HncJRvv501qIacKzQlO/+Lwxc9+0q2wLyv4Dfvt80/DPn2pqOBsJdDiogXGR9+OvwRw==}
     engines: {node: '>=8'}
 
+  supports-color@8.1.1:
+    resolution: {integrity: sha512-MpUEN2OodtUzxvKQl72cUF7RQ5EiHsGvSsVG0ia9c5RbWGL2CI4C7EpPS8UTBIplnlzZiNuV56w+FuNxy3ty2Q==}
+    engines: {node: '>=10'}
+
   supports-preserve-symlinks-flag@1.0.0:
     resolution: {integrity: sha512-ot0WnXS9fgdkgIcePe6RHNk1WA8+muPa6cSjeR3V8K27q9BB1rTE3R1p7Hv0z1ZyAc8s6Vvv8DIyWf681MAt0w==}
     engines: {node: '>= 0.4'}
@@ -4570,6 +4592,9 @@ packages:
   tsconfig-paths@3.15.0:
     resolution: {integrity: sha512-2Ac2RgzDe/cn48GvOe3M+o82pEFewD3UPbyoUHHdKasHwJKjds4fLXWf/Ux5kATBKN20oaFGu+jbElp1pos0mg==}
 
+  tslib@2.8.1:
+    resolution: {integrity: sha512-oJFu94HQb+KVduSUQL7wnpmqnfmLsOA/nAh6b6EH0wCEoK0/mPeXU6c3wKDV83MkOuHPRHtSXKKU99IBazS/2w==}
+
   tunnel-agent@0.6.0:
     resolution: {integrity: sha512-McnNiV1l8RYeY8tBgEpuodCC1mLUdbSN+CYBL7kJsJNInOP8UjDDEwdk6Mw60vdLLrr5NHKZhMAOSrR2NZuQ+w==}
 
@@ -7351,6 +7376,15 @@ snapshots:
 
   concat-map@0.0.1: {}
 
+  concurrently@9.2.1:
+    dependencies:
+      chalk: 4.1.2
+      rxjs: 7.8.2
+      shell-quote: 1.8.3
+      supports-color: 8.1.1
+      tree-kill: 1.2.2
+      yargs: 17.7.2
+
   convert-source-map@2.0.0: {}
 
   cookie@1.0.2: {}
@@ -9297,6 +9331,10 @@ snapshots:
     dependencies:
       queue-microtask: 1.2.3
 
+  rxjs@7.8.2:
+    dependencies:
+      tslib: 2.8.1
+
   safe-array-concat@1.1.3:
     dependencies:
       call-bind: 1.0.8
@@ -9372,6 +9410,8 @@ snapshots:
 
   shebang-regex@3.0.0: {}
 
+  shell-quote@1.8.3: {}
+
   side-channel-list@1.0.0:
     dependencies:
       es-errors: 1.3.0
@@ -9584,6 +9624,10 @@ snapshots:
     dependencies:
       has-flag: 4.0.0
 
+  supports-color@8.1.1:
+    dependencies:
+      has-flag: 4.0.0
+
   supports-preserve-symlinks-flag@1.0.0: {}
 
   synckit@0.11.11:
@@ -9860,6 +9904,8 @@ snapshots:
       minimist: 1.2.8
       strip-bom: 3.0.0
 
+  tslib@2.8.1: {}
+
   tunnel-agent@0.6.0:
     dependencies:
       safe-buffer: 5.2.1