diff --git a/.github/workflows/lint-js-and-ruby.yml b/.github/workflows/lint-js-and-ruby.yml
index 7e72b4e07..30beaa7e6 100644
--- a/.github/workflows/lint-js-and-ruby.yml
+++ b/.github/workflows/lint-js-and-ruby.yml
@@ -86,14 +86,18 @@ jobs:
         run: yarn start format.listDifferent
       - name: Type-check TypeScript
         run: yarn run type-check
-      - name: Lint package publishing
+      - name: Pack for attw and publint
+        run: yarn pack -f react-on-rails.tgz
+      - name: Lint package types
         # --profile because we don't care about node10
         # --ignore-rules CJS default export can't be resolved at the moment,
         # revisit in 15.0.0
-        run: yarn run attw --pack . --profile node16 --ignore-rules cjs-only-exports-default
+        run: yarn run attw react-on-rails.tgz --profile node16 --ignore-rules cjs-only-exports-default
+      - name: Lint package publishing
+        run: yarn run publint --strict react-on-rails.tgz
       # We only download and run Actionlint if there is any difference in GitHub Action workflows
       # https://github.com/rhysd/actionlint/blob/main/docs/usage.md#on-github-actions
-      - name: Check for GitHub Actions changes
+      - name: Check GitHub Action changes
         id: check-workflows
         run: |
           git fetch origin ${{ github.event.pull_request.base.sha }}
@@ -106,11 +110,8 @@ jobs:
                 echo "Failed to parse Actionlint version"
                 exit 1
               fi
-            else
-              echo "Failed to fetch latest Actionlint version"
-              exit 1
+              echo "actionlint_version=\"$actionlint_version\"" >> "$GITHUB_OUTPUT"
             fi
-            echo "actionlint_version=\"$actionlint_version\"" >> "$GITHUB_OUTPUT"
           fi
       - name: Setup Actionlint
         if: steps.check-workflows.outputs.changed == 'true'
diff --git a/package.json b/package.json
index edb0855a4..b7b4807f8 100644
--- a/package.json
+++ b/package.json
@@ -3,6 +3,7 @@
   "version": "15.0.0-alpha.2",
   "description": "react-on-rails JavaScript for react_on_rails Ruby gem",
   "main": "node_package/lib/ReactOnRails.full.js",
+  "type": "commonjs",
   "exports": {
     ".": {
       "react-server": "./node_package/lib/ReactOnRailsRSC.js",
@@ -48,6 +49,7 @@
     "nps": "^5.9.3",
     "prettier": "^3.5.2",
     "prop-types": "^15.8.1",
+    "publint": "^0.3.8",
     "react": "^19.0.0",
     "react-dom": "^19.0.0",
     "react-on-rails-rsc": "19.0.0",
diff --git a/script/convert b/script/convert
index bfb4be064..a0c7310d1 100755
--- a/script/convert
+++ b/script/convert
@@ -16,10 +16,11 @@ File.rename(old_config, new_config)
 gsub_file_content("../Gemfile.development_dependencies", 'gem "shakapacker", "8.0.0"', 'gem "shakapacker", "6.6.0"')
 
 # The below packages don't work on the oldest supported Node version and aren't needed there anyway
-gsub_file_content("../package.json", /"knip": "[^"]*",/, "")
 gsub_file_content("../package.json", %r{"@arethetypeswrong/cli": "[^"]*",}, "")
 gsub_file_content("../package.json", %r{"@testing-library/dom": "[^"]*",}, "")
 gsub_file_content("../package.json", %r{"@testing-library/react": "[^"]*",}, "")
+gsub_file_content("../package.json", /"knip": "[^"]*",/, "")
+gsub_file_content("../package.json", /"publint": "[^"]*",/, "")
 
 gsub_file_content("../spec/dummy/package.json", '"shakapacker": "8.0.0",', '"shakapacker": "6.6.0",')
 
diff --git a/yarn.lock b/yarn.lock
index cda8b0565..06384097e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1366,6 +1366,11 @@
     "@nodelib/fs.scandir" "2.1.3"
     fastq "^1.6.0"
 
+"@publint/pack@^0.1.2":
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/@publint/pack/-/pack-0.1.2.tgz#1b9a9567423262093e4a73e77697b65bf622f8c9"
+  integrity sha512-S+9ANAvUmjutrshV4jZjaiG8XQyuJIZ8a4utWmN/vW1sgQ9IfBnPndwkmQYw53QmouOIytT874u65HEmu6H5jw==
+
 "@sinclair/typebox@^0.27.8":
   version "0.27.8"
   resolved "https://registry.yarnpkg.com/@sinclair/typebox/-/typebox-0.27.8.tgz#6667fac16c436b5434a387a34dedb013198f6e6e"
@@ -4532,6 +4537,11 @@ minimist@^1.2.0, minimist@^1.2.6, minimist@^1.2.8:
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.8.tgz#c1a464e7693302e082a075cee0c057741ac4772c"
   integrity sha512-2yyAR8qBkN3YuheJanUpWC5U3bb5osDywNB8RzDVlDwDHbocAJveqqj1u8+SVD7jkWT4yvsHCpWqqWqAxb0zCA==
 
+mri@^1.1.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/mri/-/mri-1.2.0.tgz#6721480fec2a11a4889861115a48b6cbe7cc8f0b"
+  integrity sha512-tzzskb3bG8LvYGFF/mDTpq3jpI6Q9wc3LEmBaghu+DdCssd1FakN7Bc0hVNmEyGq1bq3RgfkCb3cmQLpNPOroA==
+
 ms@2.1.2:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.2.tgz#d09d1f357b443f493382a8eb3ccd183872ae6009"
@@ -4795,6 +4805,13 @@ p-try@^2.0.0:
   resolved "https://registry.yarnpkg.com/p-try/-/p-try-2.2.0.tgz#cb2868540e313d61de58fafbe35ce9004d5540e6"
   integrity sha512-R4nPAVTAU0B9D35/Gk3uJf/7XYbQcyohSKdvAxIRSNghFl4e71hVoGnBNQz9cWaXxO2I10KTC+3jMdvvoKw6dQ==
 
+package-manager-detector@^0.2.9:
+  version "0.2.11"
+  resolved "https://registry.yarnpkg.com/package-manager-detector/-/package-manager-detector-0.2.11.tgz#3af0b34f99d86d24af0a0620603d2e1180d05c9c"
+  integrity sha512-BEnLolu+yuz22S56CU1SUKq3XC3PkwD5wv4ikR4MfGvnRVcmzXR9DwSlW2fEamyTPyXHomBJRzgapeuBvRNzJQ==
+  dependencies:
+    quansync "^0.2.7"
+
 parent-module@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/parent-module/-/parent-module-1.0.1.tgz#691d2709e78c79fae3a156622452d00762caaaa2"
@@ -4890,7 +4907,7 @@ picocolors@^1.0.0:
   resolved "https://registry.yarnpkg.com/picocolors/-/picocolors-1.0.0.tgz#cb5bdc74ff3f51892236eaf79d68bc44564ab81c"
   integrity sha512-1fygroTLlHu66zi26VoTDv8yRgm0Fccecssto+MhsZ0D/DGW2sm8E8AjW7NU5VVTRt5GxbeZ5qBuJr+HyLYkjQ==
 
-picocolors@^1.1.0:
+picocolors@^1.1.0, picocolors@^1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/picocolors/-/picocolors-1.1.1.tgz#3d321af3eab939b083c8f929a1d12cda81c26b6b"
   integrity sha512-xceH2snhtb5M9liqDsmEw56le376mTZkEX/jEb/RxNFyegNul7eNslCXP9FDj/Lcu0X8KEyMceP2ntpaHrDEVA==
@@ -5011,6 +5028,16 @@ psl@^1.1.33:
   resolved "https://registry.yarnpkg.com/psl/-/psl-1.9.0.tgz#d0df2a137f00794565fcaf3b2c00cd09f8d5a5a7"
   integrity sha512-E/ZsdU4HLs/68gYzgGTkMicWTLPdAftJLfJFlLUAAKZGkStNU72sZjT66SnMDVOfOWY/YAoiD7Jxa9iHvngcag==
 
+publint@^0.3.8:
+  version "0.3.9"
+  resolved "https://registry.yarnpkg.com/publint/-/publint-0.3.9.tgz#4d0bea2fa6caf6b20f6940a121111287c7264868"
+  integrity sha512-irTwfRfYW38vomkxxoiZQtFtUOQKpz5m0p9Z60z4xpXrl1KmvSrX1OMARvnnolB5usOXeNfvLj6d/W3rwXKfBQ==
+  dependencies:
+    "@publint/pack" "^0.1.2"
+    package-manager-detector "^0.2.9"
+    picocolors "^1.1.1"
+    sade "^1.8.1"
+
 punycode@^2.1.0, punycode@^2.1.1:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/punycode/-/punycode-2.1.1.tgz#b58b010ac40c22c5657616c8d2c2c02c7bf479ec"
@@ -5026,6 +5053,11 @@ pure-rand@^6.0.0:
   resolved "https://registry.yarnpkg.com/pure-rand/-/pure-rand-6.0.4.tgz#50b737f6a925468679bff00ad20eade53f37d5c7"
   integrity sha512-LA0Y9kxMYv47GIPJy6MI84fqTd2HmYZI83W/kM/SkKfDlajnZYfmXFTxkbY+xSBPkLJxltMa9hIkmdc29eguMA==
 
+quansync@^0.2.7:
+  version "0.2.8"
+  resolved "https://registry.yarnpkg.com/quansync/-/quansync-0.2.8.tgz#2e893d17bb754ba0988ea399ff0bc5f2a8467793"
+  integrity sha512-4+saucphJMazjt7iOM27mbFCk+D9dd/zmgMDCzRZ8MEoBfYp7lAvoN38et/phRQF6wOPMy/OROBGgoWeSKyluA==
+
 querystringify@^2.1.1:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/querystringify/-/querystringify-2.2.0.tgz#3345941b4153cb9d082d8eee4cda2016a9aef7f6"
@@ -5256,6 +5288,13 @@ run-parallel@^1.2.0:
   dependencies:
     queue-microtask "^1.2.2"
 
+sade@^1.8.1:
+  version "1.8.1"
+  resolved "https://registry.yarnpkg.com/sade/-/sade-1.8.1.tgz#0a78e81d658d394887be57d2a409bf703a3b2701"
+  integrity sha512-xal3CZX1Xlo/k4ApwCFrHVACi9fBqJ7V+mwhBsuf/1IOKbBy098Fex+Wa/5QMubw09pSZ/u8EY8PWgevJsXp1A==
+  dependencies:
+    mri "^1.1.0"
+
 safe-array-concat@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/safe-array-concat/-/safe-array-concat-1.0.1.tgz#91686a63ce3adbea14d61b14c99572a8ff84754c"