diff --git a/.coveragerc b/.coveragerc
index 35b98b1..2e3f4dd 100644
--- a/.coveragerc
+++ b/.coveragerc
@@ -8,6 +8,8 @@ disable_warnings =
 [report]
 show_missing = True
 exclude_also =
-	# jaraco/skeleton#97
-	@overload
+	# Exclude common false positives per
+	# https://coverage.readthedocs.io/en/latest/excluding.html#advanced-exclusion
+	# Ref jaraco/skeleton#97 and jaraco/skeleton#135
+	class .*\bProtocol\):
 	if TYPE_CHECKING:
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 5a4a7e9..ff54405 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,6 +1,6 @@
 repos:
 - repo: https://github.com/astral-sh/ruff-pre-commit
-  rev: v0.1.8
+  rev: v0.5.6
   hooks:
   - id: ruff
   - id: ruff-format
diff --git a/mypy.ini b/mypy.ini
index b6f9727..83b0d15 100644
--- a/mypy.ini
+++ b/mypy.ini
@@ -1,5 +1,14 @@
 [mypy]
-ignore_missing_imports = True
-# required to support namespace packages
-# https://github.com/python/mypy/issues/14057
+# Is the project well-typed?
+strict = False
+
+# Early opt-in even when strict = False
+warn_unused_ignores = True
+warn_redundant_casts = True
+enable_error_code = ignore-without-code
+
+# Support namespace packages per https://github.com/python/mypy/issues/14057
 explicit_package_bases = True
+
+# Disable overload-overlap due to many false-positives
+disable_error_code = overload-overlap
diff --git a/pyproject.toml b/pyproject.toml
index 391d001..d623d2e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -35,15 +35,11 @@ Source = "https://github.com/jaraco/pytest-perf"
 test = [
 	# upstream
 	"pytest >= 6, != 8.1.*",
-	"pytest-checkdocs >= 2.4",
-	"pytest-cov",
-	"pytest-mypy",
-	"pytest-enabler >= 2.2",
-	"pytest-ruff >= 0.2.1; sys_platform != 'cygwin'",
 
 	# local
 	"pytest-subprocess",
 ]
+
 doc = [
 	# upstream
 	"sphinx >= 3.5",
@@ -55,6 +51,27 @@ doc = [
 	# local
 ]
 
+check = [
+	"pytest-checkdocs >= 2.4",
+	"pytest-ruff >= 0.2.1; sys_platform != 'cygwin'",
+]
+
+cover = [
+	"pytest-cov",
+]
+
+enabler = [
+	"pytest-enabler >= 2.2",
+]
+
+type = [
+	# upstream
+	"pytest-mypy",
+
+	# local
+]
+
+
 [project.entry-points]
 pytest11 = {perf = "pytest_perf.plugin"}
 
diff --git a/tox.ini b/tox.ini
index 71fd05f..b404332 100644
--- a/tox.ini
+++ b/tox.ini
@@ -10,6 +10,10 @@ passenv =
 usedevelop = True
 extras =
 	test
+	check
+	cover
+	enabler
+	type
 
 [testenv:diffcov]
 description = run tests and check that diff from main is covered