diff --git a/analysis-baseline.toml b/analysis-baseline.toml
new file mode 100644
index 0000000..80ac6ce
--- /dev/null
+++ b/analysis-baseline.toml
@@ -0,0 +1,31 @@
+variant = "loose"
+
+[[issues]]
+file = "src/Options.php"
+code = "match-arm-always-true"
+message = "This match arm is always true, making subsequent arms unreachable."
+count = 1
+
+[[issues]]
+file = "src/Options.php"
+code = "redundant-logical-operation"
+message = "Redundant `&&` operation: left operand is always truthy and right operand is evaluated."
+count = 1
+
+[[issues]]
+file = "src/Options.php"
+code = "redundant-logical-operation"
+message = "Redundant `&&` operation: left operand is evaluated and right operand is always truthy."
+count = 1
+
+[[issues]]
+file = "src/Options.php"
+code = "redundant-null-coalesce"
+message = "Redundant null coalesce: left-hand side can never be `null` or undefined."
+count = 2
+
+[[issues]]
+file = "src/Options.php"
+code = "unreachable-match-default-arm"
+message = "This default arm is unreachable."
+count = 1
diff --git a/lint-baseline.toml b/lint-baseline.toml
new file mode 100644
index 0000000..ddf067d
--- /dev/null
+++ b/lint-baseline.toml
@@ -0,0 +1,2 @@
+variant = "loose"
+issues = []
diff --git a/mago.toml b/mago.toml
index 74b18bd..d661558 100644
--- a/mago.toml
+++ b/mago.toml
@@ -32,6 +32,7 @@ align-assignment-like = true
 sort-class-methods = true
 
 [linter]
+baseline = "lint-baseline.toml"
 minimum-fail-level = "Help"
 integrations = ["laminas", "phpunit"]
 
@@ -95,6 +96,7 @@ switch-continue-to-break = { enabled = true }
 invalid-open-tag = { level = "Help" }
 
 [analyzer]
+baseline = "analysis-baseline.toml"
 excludes = ["test"]
 plugins = ["psl", "psr-container"]
 find-unused-definitions = true