diff --git a/ruff.toml b/ruff.toml
index 5c19ab7d..bf49679c 100644
--- a/ruff.toml
+++ b/ruff.toml
@@ -58,14 +58,30 @@ select = [
                 # function, break/continue outside a loop, except clause not last
     "F81",      # redefinition of an unused name (shadowed def/class)
     "F82",      # undefined name, undefined name in __all__, use before assignment
+    "F401",     # unused import
     "F402",     # import shadowed by a loop variable
+    "F541",     # f-string with no placeholders
+    "E401",     # several imports on one line
+    "E701",     # several statements on one line
+    "E711",     # comparison to None with == rather than is
+    "E712",     # comparison to True/False with == rather than truthiness
+    "E713",     # `not x in y` rather than `x not in y`
+    "PLC0414",  # import alias that renames nothing
     "PLE",      # pylint errors: bad string format, invalid returns, ...
     "T100",     # forgotten pdb/breakpoint call
     "W6",       # invalid escape sequence in a non-raw string, and any future
                 # deprecated-construct warning pycodestyle adds
+    "B015",     # comparison whose result is discarded
     "B020",     # loop control variable overrides the iterable it iterates
+    "B023",     # closure captures a loop variable, so every closure sees the
+                # last value rather than the one from its iteration
     "B035",     # dict comprehension with a static key
 ]
 
+# Deliberately not selected, though currently at zero: B905 (zip without an
+# explicit strict=).  It only reports on py310+, so it reads as clean here, and
+# "fixing" it would mean adding a keyword the oldest supported interpreters
+# cannot parse.
+
 # No ignores and no per-file exemptions: every rule selected above is expected
 # to stay at zero on its own.