diff --git a/archrepo2/pkgreader.py b/archrepo2/pkgreader.py
deleted file mode 100644
index 916f1bd..0000000
--- a/archrepo2/pkgreader.py
+++ /dev/null
@@ -1,48 +0,0 @@
-import tarfile
-import logging
-
-logger = logging.getLogger(__name__)
-
-multikeys = {'depend', 'makepkgopt', 'optdepend', 'replaces', 'conflict',
-             'provides', 'license', 'backup', 'group', 'makedepend', 'checkdepend'}
-
-def _add_to_dict(d, key, value):
-  if key in multikeys:
-    if key in d:
-      d[key].append(value)
-    else:
-      d[key] = [value]
-  else:
-    assert key not in d, 'unexpected multi-value key "%s"' % key
-    d[key] = value
-
-def readpkg(file):
-  tar = tarfile.open(file)
-  for _ in range(5):
-    info = tar.next()
-    if info and info.name == '.PKGINFO':
-      break
-  else:
-    logger.warn('%s is not a nice package!', file)
-    info = '.PKGINFO' # have to look further
-
-  f = tar.extractfile(info)
-  data = f.read().decode()
-  tar.close()
-
-  d = {}
-  key = None
-  for l in data.split('\n'):
-    if l.startswith('#'):
-      continue
-    if not l:
-      continue
-    if '=' not in l:
-      value += l
-    else:
-      if key is not None:
-        _add_to_dict(d, key, value)
-      key, value = l.split(' = ', 1)
-  _add_to_dict(d, key, value)
-
-  return d
diff --git a/archrepo2/repomon.py b/archrepo2/repomon.py
index c57648e..c0804be 100755
--- a/archrepo2/repomon.py
+++ b/archrepo2/repomon.py
@@ -21,7 +21,6 @@ from tornado.ioloop import IOLoop
 import tornado.process
 
 from .lib import archpkg
-from . import pkgreader
 from . import dbutil
 
 logger = logging.getLogger(__name__)
@@ -362,13 +361,7 @@ class EventHandler(pyinotify.ProcessEvent):
         except KeyError:
           owner = 'uid_%d' % stat.st_uid
 
-        try:
-          info = pkgreader.readpkg(act.path)
-        except:
-          logger.error('failed to read info for package %s', act.path, exc_info=True)
-          info = None
-        info = pickle.dumps(info)
-
+        info = None
         self._db.execute(
           '''insert or replace into pkginfo
              (filename, pkgrepo, pkgname, pkgarch, pkgver, forarch, state, owner, mtime, info) values
@@ -499,7 +492,7 @@ def repomon(config):
   if 'any' not in supported_archs:
     supported_archs.append('any')
   # assume none of the archs has regex meta characters
-  regex = re.compile(r'(?:^|/)[^.].*-[^-]+-[\d.]+-(?:' + '|'.join(supported_archs) + r')\.pkg\.tar\.xz(?:\.sig)?$')
+  regex = re.compile(r'(?:^|/)[^.].*-[^-]+-[\d.]+-(?:' + '|'.join(supported_archs) + r')\.pkg\.tar\.(?:xz|zst)(?:\.sig)?$')
 
   filter_func = partial(filter_pkg, regex)
   handler = EventHandler(
diff --git a/scripts/test_readpkg.py b/scripts/test_readpkg.py
deleted file mode 100755
index d428958..0000000
--- a/scripts/test_readpkg.py
+++ /dev/null
@@ -1,11 +0,0 @@
-#!/usr/bin/env python3
-# vim:fileencoding=utf-8
-
-from subprocess import getoutput
-allpkgs = getoutput(r"locate -be --regex '\.pkg\.tar\.xz$'").split('\n')
-
-from archrepo2.pkgreader import readpkg
-for p in allpkgs:
-  print('reading package:', p)
-  d = readpkg(p)
-  print('desc:', d.get('pkgdesc', '(nothing)'))