diff --git a/packages/core/package.json b/packages/core/package.json
index 9a3d4e316..460fca416 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -22,6 +22,7 @@
     "clean": "shx rm -rf dist",
     "copy-dts": "copyfiles -u 1 \"src/**/*.d.ts\" dist/cjs && copyfiles -u 1 \"src/**/*.d.ts\" dist/esm",
     "build": "yarn run build:all && yarn run copy-dts",
+    "dev": "tsc --project ./tsconfig.esm.json --watch",
     "api-check": "api-extractor --debug run",
     "build:update-api": "yarn run build && api-extractor run --local",
     "prepublishOnly": "yarn run build",
diff --git a/packages/streaming-image-volume-loader/package.json b/packages/streaming-image-volume-loader/package.json
index cabb49dff..144b06583 100644
--- a/packages/streaming-image-volume-loader/package.json
+++ b/packages/streaming-image-volume-loader/package.json
@@ -7,20 +7,22 @@
   "module": "dist/esm/index.js",
   "repository": "https://github.com/cornerstonejs/cornerstone3D",
   "files": [
-    "dist/"
+    "dist/",
+    "src/"
   ],
   "directories": {
     "test": "test"
   },
   "sideEffects": false,
   "scripts": {
+    "api-check": "api-extractor --debug run",
     "build:cjs": "tsc --project ./tsconfig.cjs.json",
     "build:esm": "tsc --project ./tsconfig.esm.json",
     "build:umd": "cross-env NODE_ENV=production webpack --config .webpack/webpack.prod.js",
     "build:all": "yarn run build:umd && yarn run build:cjs && yarn run build:esm",
     "build": "yarn run build:all",
-    "api-check": "api-extractor --debug run",
     "build:update-api": "yarn run build && api-extractor run --local",
+    "dev": "tsc --project ./tsconfig.esm.json --watch",
     "prepublishOnly": "yarn run build",
     "webpack:watch": "webpack --mode development --progress --watch  --config ./.webpack/webpack.dev.js"
   },
diff --git a/packages/tools/package.json b/packages/tools/package.json
index e8fb91815..1c5c68e60 100644
--- a/packages/tools/package.json
+++ b/packages/tools/package.json
@@ -22,6 +22,7 @@
     "build": "yarn run build:all",
     "api-check": "api-extractor --debug run",
     "clean": "shx rm -rf dist",
+    "dev": "tsc --project ./tsconfig.esm.json --watch",
     "build:update-api": "yarn run build && api-extractor run --local",
     "prepublishOnly": "yarn run build",
     "webpack:watch": "webpack --mode development --progress --watch  --config ./.webpack/webpack.dev.js"