diff --git a/packages/sdk/akamai-base/package.json b/packages/sdk/akamai-base/package.json
index 322358c3fc..b1fb1f136c 100644
--- a/packages/sdk/akamai-base/package.json
+++ b/packages/sdk/akamai-base/package.json
@@ -49,7 +49,6 @@
     "@rollup/plugin-node-resolve": "^15.0.2",
     "@rollup/plugin-terser": "^0.4.3",
     "@rollup/plugin-typescript": "^11.1.1",
-    "@types/crypto-js": "^4.1.1",
     "@types/jest": "^29.5.1",
     "eslint": "^9.0.0",
     "eslint-import-resolver-typescript": "^4.0.0",
@@ -57,7 +56,6 @@
     "eslint-plugin-jest": "^28.0.0",
     "globals": "^16.0.0",
     "jest": "^29.5.0",
-    "launchdarkly-js-test-helpers": "^2.2.0",
     "rimraf": "^5.0.0",
     "rollup": "^3.23.0",
     "rollup-plugin-generate-package-json": "^3.2.0",
@@ -67,7 +65,6 @@
     "typescript-eslint": "^8.0.0"
   },
   "dependencies": {
-    "@launchdarkly/akamai-edgeworker-sdk-common": "^2.0.23",
-    "@launchdarkly/js-server-sdk-common": "^2.19.1"
+    "@launchdarkly/akamai-edgeworker-sdk-common": "^2.0.23"
   }
 }
diff --git a/packages/sdk/akamai-edgekv/package.json b/packages/sdk/akamai-edgekv/package.json
index f562bef333..c34707d44b 100644
--- a/packages/sdk/akamai-edgekv/package.json
+++ b/packages/sdk/akamai-edgekv/package.json
@@ -49,7 +49,6 @@
     "@rollup/plugin-node-resolve": "^15.0.2",
     "@rollup/plugin-terser": "^0.4.3",
     "@rollup/plugin-typescript": "^11.1.1",
-    "@types/crypto-js": "^4.1.1",
     "@types/jest": "^29.5.1",
     "eslint": "^9.0.0",
     "eslint-import-resolver-typescript": "^4.0.0",
@@ -57,7 +56,6 @@
     "eslint-plugin-jest": "^28.0.0",
     "globals": "^16.0.0",
     "jest": "^29.5.0",
-    "launchdarkly-js-test-helpers": "^2.2.0",
     "rimraf": "^5.0.0",
     "rollup": "^3.23.0",
     "rollup-plugin-generate-package-json": "^3.2.0",
diff --git a/packages/sdk/cloudflare/package.json b/packages/sdk/cloudflare/package.json
index 22bba47011..c230a035c3 100644
--- a/packages/sdk/cloudflare/package.json
+++ b/packages/sdk/cloudflare/package.json
@@ -51,19 +51,16 @@
     "@rollup/plugin-typescript": "^11.1.3",
     "@types/crypto-js": "^4.1.1",
     "@types/jest": "^29.5.0",
-    "@types/rollup-plugin-generate-package-json": "^3.2.3",
     "eslint": "^9.0.0",
     "eslint-import-resolver-typescript": "^4.0.0",
     "eslint-plugin-import-x": "^4.0.0",
     "eslint-plugin-jest": "^28.0.0",
     "globals": "^16.0.0",
     "jest": "^29.5.0",
-    "launchdarkly-js-test-helpers": "^2.2.0",
     "miniflare": "^2.13.0",
     "rimraf": "^5.0.1",
     "rollup": "^3.29.2",
     "rollup-plugin-filesize": "^10.0.0",
-    "rollup-plugin-generate-package-json": "^3.2.0",
     "ts-jest": "^29.1.0",
     "typedoc": "0.25.0",
     "typescript": "5.1.6",
diff --git a/packages/sdk/combined-browser/package.json b/packages/sdk/combined-browser/package.json
index 0aa7a60124..ef0f620029 100644
--- a/packages/sdk/combined-browser/package.json
+++ b/packages/sdk/combined-browser/package.json
@@ -49,7 +49,6 @@
   },
   "devDependencies": {
     "@eslint/js": "^9.0.0",
-    "@jest/globals": "^29.7.0",
     "@types/jest": "^29.5.11",
     "eslint": "^9.0.0",
     "eslint-import-resolver-typescript": "^4.0.0",
diff --git a/packages/sdk/electron/package.json b/packages/sdk/electron/package.json
index c17badf377..131b2cd28a 100644
--- a/packages/sdk/electron/package.json
+++ b/packages/sdk/electron/package.json
@@ -65,7 +65,6 @@
     "eslint-plugin-jest": "^28.0.0",
     "globals": "^16.0.0",
     "jest": "^29.5.0",
-    "launchdarkly-js-test-helpers": "^2.2.0",
     "ts-jest": "^29.0.5",
     "tsup": "^8.5.1",
     "typedoc": "0.25.0",
diff --git a/packages/sdk/openfeature-node-server/package.json b/packages/sdk/openfeature-node-server/package.json
index 7b85fa11d5..b2d1f82c3a 100644
--- a/packages/sdk/openfeature-node-server/package.json
+++ b/packages/sdk/openfeature-node-server/package.json
@@ -44,7 +44,6 @@
   "author": "LaunchDarkly",
   "license": "Apache-2.0",
   "dependencies": {
-    "@launchdarkly/js-sdk-common": "2.25.1",
     "@launchdarkly/openfeature-js-server-common": "0.1.3"
   },
   "peerDependencies": {
diff --git a/packages/sdk/react-native/jest.config.ts b/packages/sdk/react-native/jest.config.cjs
similarity index 62%
rename from packages/sdk/react-native/jest.config.ts
rename to packages/sdk/react-native/jest.config.cjs
index 68246526cf..628ee0454e 100644
--- a/packages/sdk/react-native/jest.config.ts
+++ b/packages/sdk/react-native/jest.config.cjs
@@ -1,7 +1,7 @@
-import type { JestConfigWithTsJest } from 'ts-jest';
-import { defaults as tsjPreset } from 'ts-jest/presets';
+const { defaults: tsjPreset } = require('ts-jest/presets');
 
-const jestConfig: JestConfigWithTsJest = {
+/** @type {import('ts-jest').JestConfigWithTsJest} */
+module.exports = {
   ...tsjPreset,
   preset: 'react-native',
   testEnvironment: 'jsdom',
@@ -16,5 +16,3 @@ const jestConfig: JestConfigWithTsJest = {
   testPathIgnorePatterns: ['node_modules', 'example', 'dist'],
   setupFiles: ['./jestSetupFile.ts'],
 };
-
-export default jestConfig;
diff --git a/packages/sdk/react-native/package.json b/packages/sdk/react-native/package.json
index a7bf6d8c5b..4e991423a8 100644
--- a/packages/sdk/react-native/package.json
+++ b/packages/sdk/react-native/package.json
@@ -54,14 +54,12 @@
     "eslint-plugin-jest": "^28.0.0",
     "globals": "^16.0.0",
     "jest": "^29.7.0",
-    "launchdarkly-js-test-helpers": "^2.2.0",
     "metro-react-native-babel-preset": "^0.77.0",
     "react": "^18.2.0",
     "react-dom": "^18.2.0",
     "react-native": "^0.73.1",
     "rimraf": "^5.0.5",
     "ts-jest": "^29.1.1",
-    "ts-node": "^10.9.2",
     "typedoc": "0.25.0",
     "typescript": "5.1.6",
     "typescript-eslint": "^8.0.0"
diff --git a/packages/sdk/react/package.json b/packages/sdk/react/package.json
index e13928b1ad..cd5d2e5e04 100644
--- a/packages/sdk/react/package.json
+++ b/packages/sdk/react/package.json
@@ -42,7 +42,6 @@
   ],
   "devDependencies": {
     "@eslint/js": "^9.0.0",
-    "@testing-library/jest-dom": "^6.6.3",
     "@testing-library/react": "^16.0.0",
     "@types/jest": "^29.5.0",
     "@types/react": "^19.2.14",
@@ -57,7 +56,6 @@
     "react": "^19.2.4",
     "react-dom": "^19.2.4",
     "tsup": "^8.5.1",
-    "tsup-plugin-prepend-directive": "^0.1.2",
     "typedoc": "0.25.0",
     "typescript": "5.1.6",
     "typescript-eslint": "^8.0.0"
diff --git a/packages/sdk/svelte/package.json b/packages/sdk/svelte/package.json
index 070a9add7b..4959c64163 100644
--- a/packages/sdk/svelte/package.json
+++ b/packages/sdk/svelte/package.json
@@ -46,8 +46,7 @@
     "svelte": "^4.0.0"
   },
   "dependencies": {
-    "@launchdarkly/js-client-sdk": "workspace:^",
-    "esm-env": "^1.0.0"
+    "@launchdarkly/js-client-sdk": "workspace:^"
   },
   "devDependencies": {
     "@eslint/js": "^9.0.0",
@@ -56,8 +55,6 @@
     "@sveltejs/kit": "^2.0.0",
     "@sveltejs/package": "^2.0.0",
     "@sveltejs/vite-plugin-svelte": "^7.1.2",
-    "@testing-library/svelte": "^5.2.0",
-    "@types/jest": "^29.5.11",
     "@vitest/coverage-v8": "^4.1.8",
     "@vitest/ui": "^4.1.8",
     "eslint": "^9.0.0",
@@ -70,9 +67,6 @@
     "publint": "^0.1.9",
     "rimraf": "^5.0.5",
     "svelte": "^5.4.0",
-    "svelte-check": "^3.6.0",
-    "ts-jest": "^29.1.1",
-    "ts-node": "^10.9.2",
     "typedoc": "0.25.0",
     "typescript": "5.1.6",
     "typescript-eslint": "^8.0.0",
diff --git a/packages/sdk/vercel/package.json b/packages/sdk/vercel/package.json
index 526b61dd68..685693d9e8 100644
--- a/packages/sdk/vercel/package.json
+++ b/packages/sdk/vercel/package.json
@@ -35,12 +35,10 @@
   },
   "dependencies": {
     "@launchdarkly/js-server-sdk-common-edge": "2.6.22",
-    "@vercel/edge-config": "^1.1.0",
-    "crypto-js": "^4.1.1"
+    "@vercel/edge-config": "^1.1.0"
   },
   "devDependencies": {
     "@eslint/js": "^9.0.0",
-    "@types/crypto-js": "^4.1.1",
     "@types/jest": "^29.5.0",
     "eslint": "^9.0.0",
     "eslint-import-resolver-typescript": "^4.0.0",
@@ -48,7 +46,6 @@
     "eslint-plugin-jest": "^28.0.0",
     "globals": "^16.0.0",
     "jest": "^29.5.0",
-    "launchdarkly-js-test-helpers": "^2.2.0",
     "rimraf": "^5.0.0",
     "ts-jest": "^29.1.0",
     "typedoc": "0.25.0",
diff --git a/packages/shared/akamai-edgeworker-sdk/package.json b/packages/shared/akamai-edgeworker-sdk/package.json
index f4008720ee..f7c479de63 100644
--- a/packages/shared/akamai-edgeworker-sdk/package.json
+++ b/packages/shared/akamai-edgeworker-sdk/package.json
@@ -28,10 +28,6 @@
   },
   "devDependencies": {
     "@eslint/js": "^9.0.0",
-    "@rollup/plugin-commonjs": "^25.0.0",
-    "@rollup/plugin-node-resolve": "^15.0.2",
-    "@rollup/plugin-terser": "^0.4.3",
-    "@rollup/plugin-typescript": "^11.1.1",
     "@types/crypto-js": "^4.1.1",
     "@types/jest": "^29.5.1",
     "eslint": "^9.0.0",
@@ -40,10 +36,6 @@
     "eslint-plugin-jest": "^28.0.0",
     "globals": "^16.0.0",
     "jest": "^29.5.0",
-    "launchdarkly-js-test-helpers": "^2.2.0",
-    "rimraf": "^5.0.0",
-    "rollup": "^3.23.0",
-    "rollup-plugin-generate-package-json": "^3.2.0",
     "ts-jest": "^29.1.0",
     "typedoc": "0.25.0",
     "typescript": "5.1.6",
diff --git a/packages/shared/common/package.json b/packages/shared/common/package.json
index c43be09abc..7918abf819 100644
--- a/packages/shared/common/package.json
+++ b/packages/shared/common/package.json
@@ -44,8 +44,6 @@
     "@eslint/js": "^9.0.0",
     "@rollup/plugin-commonjs": "^25.0.0",
     "@rollup/plugin-json": "^6.1.0",
-    "@rollup/plugin-node-resolve": "^15.0.2",
-    "@rollup/plugin-terser": "^0.4.3",
     "@rollup/plugin-typescript": "^11.1.1",
     "@types/jest": "^29.4.0",
     "eslint": "^9.0.0",
@@ -54,7 +52,6 @@
     "eslint-plugin-jest": "^28.0.0",
     "globals": "^16.0.0",
     "jest": "^29.5.0",
-    "launchdarkly-js-test-helpers": "^2.2.0",
     "rimraf": "6.0.1",
     "rollup": "^3.23.0",
     "ts-jest": "^29.0.5",
diff --git a/packages/shared/openfeature-server-common/package.json b/packages/shared/openfeature-server-common/package.json
index ab5836ba72..a748b99e08 100644
--- a/packages/shared/openfeature-server-common/package.json
+++ b/packages/shared/openfeature-server-common/package.json
@@ -25,7 +25,7 @@
   },
   "scripts": {
     "build": "tsup-node",
-    "lint": "npx eslint . --ext .ts",
+    "lint": "npx eslint .",
     "lint:fix": "yarn run lint --fix",
     "test": "jest",
     "check": "yarn lint && yarn build && yarn test"
@@ -50,15 +50,7 @@
     "@openfeature/core": "^1.10.0",
     "@openfeature/server-sdk": "^1.16.0",
     "@types/jest": "^29.5.3",
-    "@typescript-eslint/eslint-plugin": "^6.20.0",
-    "@typescript-eslint/parser": "^6.20.0",
-    "eslint": "^8.45.0",
-    "eslint-config-prettier": "^8.8.0",
-    "eslint-plugin-import": "^2.27.5",
-    "eslint-plugin-jest": "^27.6.3",
-    "eslint-plugin-prettier": "^5.0.0",
     "jest": "^29.6.1",
-    "prettier": "^3.0.0",
     "ts-jest": "^29.1.1",
     "tsup": "^8.5.1",
     "typescript": "5.1.6"
diff --git a/packages/shared/sdk-client/package.json b/packages/shared/sdk-client/package.json
index c9b8a3a736..ffff9d05a8 100644
--- a/packages/shared/sdk-client/package.json
+++ b/packages/shared/sdk-client/package.json
@@ -49,19 +49,16 @@
     "@rollup/plugin-commonjs": "^25.0.0",
     "@rollup/plugin-json": "^6.1.0",
     "@rollup/plugin-node-resolve": "^15.0.2",
-    "@rollup/plugin-terser": "^0.4.3",
     "@rollup/plugin-typescript": "^11.1.1",
     "@testing-library/dom": "^9.3.1",
     "@testing-library/jest-dom": "^5.16.5",
     "@types/jest": "^29.5.3",
-    "@types/semver": "^7.5.0",
     "eslint": "^9.0.0",
     "eslint-import-resolver-typescript": "^4.0.0",
     "eslint-plugin-import-x": "^4.0.0",
     "eslint-plugin-jest": "^28.0.0",
     "globals": "^16.0.0",
     "jest": "^29.6.1",
-    "jest-diff": "^29.6.1",
     "jest-environment-jsdom": "^29.6.1",
     "launchdarkly-js-test-helpers": "^2.2.0",
     "rimraf": "6.0.1",
diff --git a/packages/shared/sdk-server-edge/package.json b/packages/shared/sdk-server-edge/package.json
index f89b13b93e..d177fec282 100644
--- a/packages/shared/sdk-server-edge/package.json
+++ b/packages/shared/sdk-server-edge/package.json
@@ -47,8 +47,6 @@
     "eslint-plugin-jest": "^28.0.0",
     "globals": "^16.0.0",
     "jest": "^29.5.0",
-    "launchdarkly-js-test-helpers": "^2.2.0",
-    "npm-dts": "^1.3.12",
     "rimraf": "^5.0.0",
     "ts-jest": "^29.1.0",
     "typedoc": "0.25.0",
diff --git a/packages/shared/sdk-server/package.json b/packages/shared/sdk-server/package.json
index a0b33fa707..99301c2650 100644
--- a/packages/shared/sdk-server/package.json
+++ b/packages/shared/sdk-server/package.json
@@ -40,7 +40,6 @@
     "eslint-plugin-jest": "^28.0.0",
     "globals": "^16.0.0",
     "jest": "^29.5.0",
-    "jest-diff": "^28.1.1",
     "launchdarkly-js-test-helpers": "^2.2.0",
     "ts-jest": "^29.0.5",
     "typedoc": "0.25.0",
diff --git a/packages/store/node-server-sdk-dynamodb/package.json b/packages/store/node-server-sdk-dynamodb/package.json
index f51fded5ce..1a28cfa350 100644
--- a/packages/store/node-server-sdk-dynamodb/package.json
+++ b/packages/store/node-server-sdk-dynamodb/package.json
@@ -41,7 +41,6 @@
     "eslint-plugin-jest": "^28.0.0",
     "globals": "^16.0.0",
     "jest": "^29.5.0",
-    "launchdarkly-js-test-helpers": "^2.2.0",
     "ts-jest": "^29.0.5",
     "typedoc": "0.25.0",
     "typescript": "5.1.6",
diff --git a/packages/store/node-server-sdk-redis/package.json b/packages/store/node-server-sdk-redis/package.json
index f48db79112..505a3dbb2d 100644
--- a/packages/store/node-server-sdk-redis/package.json
+++ b/packages/store/node-server-sdk-redis/package.json
@@ -42,7 +42,6 @@
     "eslint-plugin-jest": "^28.0.0",
     "globals": "^16.0.0",
     "jest": "^29.5.0",
-    "launchdarkly-js-test-helpers": "^2.2.0",
     "ts-jest": "^29.0.5",
     "typedoc": "0.25.0",
     "typescript": "5.1.6",
diff --git a/packages/telemetry/node-server-sdk-otel/package.json b/packages/telemetry/node-server-sdk-otel/package.json
index 6f262ac35d..63aedb3c8f 100644
--- a/packages/telemetry/node-server-sdk-otel/package.json
+++ b/packages/telemetry/node-server-sdk-otel/package.json
@@ -37,19 +37,13 @@
     "@opentelemetry/api": ">=1.3.0",
     "@opentelemetry/sdk-node": "0.217.0",
     "@opentelemetry/sdk-trace-node": "2.7.1",
-    "@testing-library/dom": "^9.3.1",
-    "@testing-library/jest-dom": "^5.16.5",
     "@types/jest": "^29.5.3",
-    "@types/semver": "^7.5.0",
     "eslint": "^9.0.0",
     "eslint-import-resolver-typescript": "^4.0.0",
     "eslint-plugin-import-x": "^4.0.0",
     "eslint-plugin-jest": "^28.0.0",
     "globals": "^16.0.0",
     "jest": "^29.6.1",
-    "jest-diff": "^29.6.1",
-    "jest-environment-jsdom": "^29.6.1",
-    "launchdarkly-js-test-helpers": "^2.2.0",
     "ts-jest": "^29.1.1",
     "typedoc": "0.25.0",
     "typescript": "5.1.6",