diff --git a/README.md b/README.md
index 02eac13..3368703 100644
--- a/README.md
+++ b/README.md
@@ -11,6 +11,11 @@
 - node.js >18.16.0
 - pnpm >8.6.12
 
+### Develop
+
+- `pnpm i`
+- `pnpm dev`
+
 ### Build
 
 - `pnpm i`
diff --git a/package.json b/package.json
index 930d0e6..65dd67a 100644
--- a/package.json
+++ b/package.json
@@ -6,6 +6,7 @@
   "main": "index.js",
   "scripts": {
     "prepare": "husky",
+    "dev": "pnpm -r --parallel dev",
     "build": "pnpm -r build",
     "release": "changeset publish"
   },
@@ -18,6 +19,7 @@
   "license": "MIT",
   "devDependencies": {
     "@changesets/cli": "^2.27.5",
+    "concurrently": "^8.2.2",
     "eslint": "^9.4.0",
     "husky": "^9.0.11",
     "lint-staged": "^15.2.5",
diff --git a/packages/core/package.json b/packages/core/package.json
index c95b741..d592c69 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -13,6 +13,9 @@
     "README.md"
   ],
   "scripts": {
+    "tsc:watch": "tsc --watch",
+    "rollup:watch": "rollup -c --watch",
+    "dev": "concurrently --kill-others \"pnpm tsc:watch\" \"pnpm rollup:watch\"",
     "build": "tsc && rollup -c"
   },
   "keywords": [],
diff --git a/packages/extensions/package.json b/packages/extensions/package.json
index 6c0351d..98f62dd 100644
--- a/packages/extensions/package.json
+++ b/packages/extensions/package.json
@@ -13,6 +13,9 @@
     "README.md"
   ],
   "scripts": {
+    "tsc:watch": "tsc --watch",
+    "rollup:watch": "rollup -c --watch",
+    "dev": "concurrently --kill-others \"pnpm tsc:watch\" \"pnpm rollup:watch\"",
     "build": "tsc && rollup -c"
   },
   "keywords": [],
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index c30aef7..d09052d 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -11,6 +11,9 @@ importers:
       '@changesets/cli':
         specifier: ^2.27.5
         version: 2.27.5
+      concurrently:
+        specifier: ^8.2.2
+        version: 8.2.2
       eslint:
         specifier: ^9.4.0
         version: 9.4.0
@@ -987,6 +990,22 @@ packages:
     resolution: {integrity: sha1-2Klr13/Wjfd5OnMDajug1UBdR3s=}
     dev: true
 
+  /concurrently@8.2.2:
+    resolution: {integrity: sha512-1dP4gpXFhei8IOtlXRE/T/4H88ElHgTiUzh71YUmtjTEHMSRS2Z/fgOxHSxxusGHogsRfxNq1vyAwxSC+EVyDg==}
+    engines: {node: ^14.13.0 || >=16.0.0}
+    hasBin: true
+    dependencies:
+      chalk: 4.1.2
+      date-fns: 2.30.0
+      lodash: 4.17.21
+      rxjs: 7.8.1
+      shell-quote: 1.8.1
+      spawn-command: 0.0.2
+      supports-color: 8.1.1
+      tree-kill: 1.2.2
+      yargs: 17.7.2
+    dev: true
+
   /crelt@1.0.6:
     resolution: {integrity: sha512-VQ2MBenTq1fWZUH9DJNGti7kKv6EeAuYr3cLwxUWhIu1baTaXh4Ib5W2CqHVqib4/MqbYGJqiL3Zb8GJZr3l4g==}
     dev: true
@@ -1057,6 +1076,13 @@ packages:
       is-data-view: 1.0.1
     dev: true
 
+  /date-fns@2.30.0:
+    resolution: {integrity: sha512-fnULvOpxnC5/Vg3NCiWelDsLiUc9bRwAPs/+LfTLNvetFCtCTN+yQz15C/fs4AwX1R9K5GLtLfn8QW+dWisaAw==}
+    engines: {node: '>=0.11'}
+    dependencies:
+      '@babel/runtime': 7.24.7
+    dev: true
+
   /debug@4.3.5:
     resolution: {integrity: sha512-pt0bNEmneDIvdL1Xsd9oDQ/wrQRkXDT4AUWlNZNPKvW5x/jyO9VFXkJUP07vQ2upmw5PlaITaPKc31jK13V+jg==}
     engines: {node: '>=6.0'}
@@ -2024,6 +2050,10 @@ packages:
     resolution: {integrity: sha512-+WKqsK294HMSc2jEbNgpHpd0JfIBhp7rEV4aqXWqFr6AlXov+SlcgB1Fv01y2kGe3Gc8nMW7VA0SrGuSkRfIEg==}
     dev: true
 
+  /lodash@4.17.21:
+    resolution: {integrity: sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==}
+    dev: true
+
   /log-update@6.0.0:
     resolution: {integrity: sha512-niTvB4gqvtof056rRIrTZvjNYE4rCUzO6X/X+kYjd7WFxXeJ0NwEFnRxX6ehkvv3jTwrXnNdtAak5XYZuIyPFw==}
     engines: {node: '>=18'}
@@ -2490,6 +2520,12 @@ packages:
       queue-microtask: 1.2.3
     dev: true
 
+  /rxjs@7.8.1:
+    resolution: {integrity: sha512-AA3TVj+0A2iuIoQkWEK/tqFjBq2j+6PO6Y0zJcvzLAFhEFIO3HL0vls9hWLncZbAAbK0mar7oZ4V079I/qPMxg==}
+    dependencies:
+      tslib: 2.6.3
+    dev: true
+
   /safe-array-concat@1.1.2:
     resolution: {integrity: sha512-vj6RsCsWBCf19jIeHEfkRMw8DPiBb+DMXklQ/1SGDHOMlHdPUkZXFQ2YdplS23zESTijAcurb1aSgJA3AgMu1Q==}
     engines: {node: '>=0.4'}
@@ -2574,6 +2610,10 @@ packages:
     engines: {node: '>=8'}
     dev: true
 
+  /shell-quote@1.8.1:
+    resolution: {integrity: sha512-6j1W9l1iAs/4xYBI1SYOVZyFcCis9b4KCLQ8fgAGG07QvzaRLVVRQvAy85yNmmZSjYjg4MWh4gNvlPujU/5LpA==}
+    dev: true
+
   /side-channel@1.0.6:
     resolution: {integrity: sha512-fDW/EZ6Q9RiO8eFG8Hj+7u/oW+XrPTIChwCOM2+th2A6OblDtYYIpve9m+KvI9Z4C9qSEXlaGR6bTEYHReuglA==}
     engines: {node: '>= 0.4'}
@@ -2627,6 +2667,10 @@ packages:
       yargs: 15.4.1
     dev: true
 
+  /spawn-command@0.0.2:
+    resolution: {integrity: sha512-zC8zGoGkmc8J9ndvml8Xksr1Amk9qBujgbF0JAIWO7kXr43w0h/0GJNM/Vustixu+YE8N/MTrQ7N31FvHUACxQ==}
+    dev: true
+
   /spawndamnit@2.0.0:
     resolution: {integrity: sha512-j4JKEcncSjFlqIwU5L/rp2N5SIPsdxaRsIv678+TZxZ0SRDJTm8JrxJMjE/XuiEZNEir3S8l0Fa3Ke339WI4qA==}
     dependencies:
@@ -2770,6 +2814,13 @@ packages:
       has-flag: 4.0.0
     dev: true
 
+  /supports-color@8.1.1:
+    resolution: {integrity: sha512-MpUEN2OodtUzxvKQl72cUF7RQ5EiHsGvSsVG0ia9c5RbWGL2CI4C7EpPS8UTBIplnlzZiNuV56w+FuNxy3ty2Q==}
+    engines: {node: '>=10'}
+    dependencies:
+      has-flag: 4.0.0
+    dev: true
+
   /supports-preserve-symlinks-flag@1.0.0:
     resolution: {integrity: sha512-ot0WnXS9fgdkgIcePe6RHNk1WA8+muPa6cSjeR3V8K27q9BB1rTE3R1p7Hv0z1ZyAc8s6Vvv8DIyWf681MAt0w==}
     engines: {node: '>= 0.4'}
@@ -2798,6 +2849,11 @@ packages:
       is-number: 7.0.0
     dev: true
 
+  /tree-kill@1.2.2:
+    resolution: {integrity: sha512-L0Orpi8qGpRG//Nd+H90vFB+3iHnue1zSSGmNOOCh1GLJ7rUKVwV2HvijphGQS2UmhUZewS9VgvxYIdgr+fG1A==}
+    hasBin: true
+    dev: true
+
   /trim-newlines@3.0.1:
     resolution: {integrity: sha512-c1PTsA3tYrIsLGkJkzHF+w9F2EyxfXGo4UyJc4pFL++FMjnq0HJS69T3M7d//gKrFKwy429bouPescbjecU+Zw==}
     engines: {node: '>=8'}