diff --git a/common/file_helpers.py b/common/file_helpers.py
index 8a45fa313c..227d614d72 100644
--- a/common/file_helpers.py
+++ b/common/file_helpers.py
@@ -5,7 +5,7 @@ from atomicwrites import AtomicWriter
 
 
 def mkdirs_exists_ok(path):
-  if path.startswith('http://') or path.startswith('https://'):
+  if path.startswith(('http://', 'https://')):
     raise ValueError('URL path')
   try:
     os.makedirs(path)
diff --git a/pyproject.toml b/pyproject.toml
index 933af61afd..b6f45bc0fa 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -197,7 +197,7 @@ build-backend = "poetry.core.masonry.api"
 
 # https://beta.ruff.rs/docs/configuration/#using-pyprojecttoml
 [tool.ruff]
-select = ["E", "F", "W"]
+select = ["E", "F", "W", "PIE"]
 ignore = ["W292", "E741", "E402"]
 line-length = 160
 target-version="py311"
diff --git a/scripts/code_stats.py b/scripts/code_stats.py
index 6c6db4335a..25e8950ccb 100755
--- a/scripts/code_stats.py
+++ b/scripts/code_stats.py
@@ -40,7 +40,7 @@ for f in sorted(pyf):
   print("%5d %s %s" % (lns, f, xbit))
   if 'test' in f:
     testlns += lns
-  elif f.startswith('tools/') or f.startswith('scripts/') or f.startswith('selfdrive/debug'):
+  elif f.startswith(('tools/', 'scripts/', 'selfdrive/debug')):
     scriptlns += lns
   elif f.startswith('selfdrive/car'):
     carlns += lns
diff --git a/selfdrive/locationd/laikad.py b/selfdrive/locationd/laikad.py
index cbc1822e50..e4a408d130 100755
--- a/selfdrive/locationd/laikad.py
+++ b/selfdrive/locationd/laikad.py
@@ -137,8 +137,8 @@ class Laikad:
       #TODO this only saves currently valid ephems, when we download future ephems we should save them too
       valid_navs = [e for e in nav_list if e.valid(self.last_report_time)]
       if len(valid_navs) > 0:
-        ephem_cache = ephemeris_structs.EphemerisCache(**{'glonassEphemerides': [e.data for e in valid_navs if e.prn[0]=='R'],
-                                                          'gpsEphemerides': [e.data for e in valid_navs if e.prn[0]=='G']})
+        ephem_cache = ephemeris_structs.EphemerisCache(glonassEphemerides=[e.data for e in valid_navs if e.prn[0]=='R'],
+                                                       gpsEphemerides=[e.data for e in valid_navs if e.prn[0]=='G'])
         put_nonblocking(EPHEMERIS_CACHE, ephem_cache.to_bytes())
         cloudlog.debug("Cache saved")
       self.last_cached_t = self.last_report_time
diff --git a/system/version.py b/system/version.py
index 55f80afa35..c9ab443694 100644
--- a/system/version.py
+++ b/system/version.py
@@ -90,7 +90,7 @@ def is_comma_remote() -> bool:
   if origin is None:
     return False
 
-  return origin.startswith('git@github.com:commaai') or origin.startswith('https://github.com/commaai')
+  return origin.startswith(('git@github.com:commaai', 'https://github.com/commaai'))
 
 
 @cache
diff --git a/tools/lib/filereader.py b/tools/lib/filereader.py
index 215f7b2185..718b853b1a 100644
--- a/tools/lib/filereader.py
+++ b/tools/lib/filereader.py
@@ -6,6 +6,6 @@ DATA_ENDPOINT = os.getenv("DATA_ENDPOINT", "http://data-raw.comma.internal/")
 def FileReader(fn, debug=False):
   if fn.startswith("cd:/"):
     fn = fn.replace("cd:/", DATA_ENDPOINT)
-  if fn.startswith("http://") or fn.startswith("https://"):
+  if fn.startswith(("http://", "https://")):
     return URLFile(fn, debug=debug)
   return open(fn, "rb")