diff --git a/.github/workflows/package-lint.yml b/.github/workflows/package-lint.yml
index ef1ba37..045448f 100644
--- a/.github/workflows/package-lint.yml
+++ b/.github/workflows/package-lint.yml
@@ -42,13 +42,14 @@ jobs:
           sudo apt-get install ./temp/webosbrew-toolbox-*.deb
 
       - name: Lint package information
+        shell: bash
         run: |
           export lint_retcode=0
           for changed_file in ${{ inputs.packages }}; do
-            echo "## Check Results for $(basename "${changed_file}"):" >> /tmp/lint-report.md
+            echo "# Check Results for $(basename "${changed_file}"):" >> /tmp/lint-report.md
             echo >> /tmp/lint-report.md
 
-            echo '### Metadata Lint Result' >> /tmp/lint-report.md
+            echo '## Package Metadata' >> /tmp/lint-report.md
             echo >> /tmp/lint-report.md
 
             python3 -m repogen.lintpkg -f "${changed_file}" >> /tmp/lint-report.md || export lint_retcode=1
@@ -57,7 +58,7 @@ jobs:
             ipkfile=/tmp/$(sha256sum "${changed_file}" | cut -d ' ' -f 1).ipk
             python3 -m repogen.downloadipk -i "${changed_file}" -o "${ipkfile}" >> /tmp/lint-report.md || { export lint_retcode=1; continue; }
 
-            echo '### Compatibility Check Results' >> /tmp/lint-report.md
+            echo '## Compatibility Check' >> /tmp/lint-report.md
 
             python3 -m repogen.check_compat -i "${changed_file}" -p "${ipkfile}" >> /tmp/lint-report.md || export lint_retcode=1
           done
diff --git a/repogen/check_compat.py b/repogen/check_compat.py
index dc65e45..912e3fe 100644
--- a/repogen/check_compat.py
+++ b/repogen/check_compat.py
@@ -1,8 +1,6 @@
 import subprocess
 from pathlib import Path
 
-import shellescape
-
 from repogen import pkg_info
 from repogen.pkg_info import PackageInfo
 
@@ -12,9 +10,13 @@ def check(info_file: Path, package_file: Path):
     compat_check_args = ['--format', 'markdown', '--details']
     if 'requirements' in info:
         if 'webosRelease' in info['requirements']:
-            compat_check_args.extend(['--fw-releases', shellescape.quote(info["requirements"]["webosRelease"])])
-    p = subprocess.run(f'webosbrew-ipk-verify {" ".join(compat_check_args)} {str(package_file.absolute())}',
-                       shell=True)
+            compat_check_args.extend(['--fw-releases', info["requirements"]["webosRelease"]])
+    p = subprocess.run(args=['webosbrew-ipk-verify', *compat_check_args, str(package_file.absolute())],
+                       shell=False, stdout=subprocess.PIPE, universal_newlines=True)
+    for line in p.stdout.splitlines():
+        if line.startswith('## Package'):
+            continue
+        print(line)
     exit(p.returncode)
 
 
diff --git a/repogen/lintpkg.py b/repogen/lintpkg.py
index 7822a11..cfe09a1 100644
--- a/repogen/lintpkg.py
+++ b/repogen/lintpkg.py
@@ -1,4 +1,5 @@
 from pathlib import Path
+from typing import Tuple, List
 from urllib.parse import urlparse
 from urllib.request import url2pathname
 from xml.etree import ElementTree
@@ -31,8 +32,9 @@ def run(self, root: ElementTree.Element):
                     self.errors.append("Use HTTPS URL for %s" % src)
             return None
 
-    def lint(self, info: PackageInfo) -> [str]:
-        errors: [str] = []
+    def lint(self, info: PackageInfo) -> Tuple[List[str], List[str]]:
+        errors: List[str] = []
+        warnings: List[str] = []
 
         # Pool property
         if info['pool'] not in ['main', 'non-free']:
@@ -50,13 +52,11 @@ def lint(self, info: PackageInfo) -> [str]:
             errors.append('iconUrl must be data URI or use HTTPS')
 
         # Process manifest
-        if 'manifestUrl' in info:
-            PackageInfoLinter._validate_manifest_url(info['manifestUrl'], 'manifestUrl', errors)
-        elif 'manifest' not in info:
-            errors.append('Either `manifestUrl` or `manifest` is required')
-
-        if 'manifestUrlBeta' in info:
-            PackageInfoLinter._validate_manifest_url(info['manifestUrlBeta'], 'manifestUrlBeta', errors)
+        manifest = info['manifest']
+        if info['id'].startswith('org.webosbrew.'):
+            source_url = manifest.get('sourceUrl', None)
+            if not source_url or not source_url.startswith('https://github.com/webosbrew/'):
+                warnings.append('Only package from github.com/webosbrew can have id starting with `org.webosbrew.`')
 
         description = info.get('description', '')
         mk = Markdown()
@@ -64,7 +64,7 @@ def lint(self, info: PackageInfo) -> [str]:
         mk.treeprocessors.register(
             self.ImageProcessor(errors), 'image_link', 1)
         mk.convert(description)
-        return errors
+        return errors, warnings
 
     @staticmethod
     def _validate_manifest_url(url: str, key: str, e: [str]):
@@ -94,12 +94,13 @@ def _validate_manifest_url(url: str, key: str, e: [str]):
         raise ValueError('No package info')
 
     linter = PackageInfoLinter()
-    lint_errors = linter.lint(lint_pkginfo)
-
-    if len(lint_errors):
-        print('#### Issue:')
-        for err in lint_errors:
-            print(' * %s' % err)
-        exit(1)
-    else:
-        print('Check passed.')
+    lint_errors, lint_warnings = linter.lint(lint_pkginfo)
+
+    for err in lint_errors:
+        print(' * :x: %s' % err)
+    for warn in lint_warnings:
+        print(' * :warning: %s' % warn)
+
+    if not len(lint_errors) and not len(lint_warnings):
+        print(':white_check_mark: Check passed.')
+    exit(1 if len(lint_errors) else 0)
diff --git a/requirements.txt b/requirements.txt
index c626d96..99b8f69 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,7 +13,6 @@ invoke~=2.2.0
 ar~=0.8
 jsonschema~=4.21.1
 semantic-version~=2.10.0
-shellescape~=3.8.1
 lxml~=5.1.0
 debian-parser~=0.1.2
 git+https://github.com/Kronuz/pyScss.git@60414f5d573315a8458b5fbcdf69e5c648c44a9a#egg=pyscss