diff --git a/test/fetch-test-deps.sh b/test/fetch-test-deps.sh
index 4cfcfae1..507446f9 100755
--- a/test/fetch-test-deps.sh
+++ b/test/fetch-test-deps.sh
@@ -4,14 +4,16 @@ set -euo pipefail
 cd "$(dirname "$0")"
 
 usage() {
-	echo "Downloads source code of Game Boy programs used as RGBDS test cases."
-	echo "Options:"
-	echo "    -h, --help          show this help message"
-	echo "    --only-free         download only freely licensed codebases"
-	echo "    --only-internal     do not download any codebases"
-	echo "    --get-deps          install programs' own dependencies instead of themselves"
-	echo "    --get-hash          print programs' commit hashes instead of downloading them"
-	echo "    --get-paths         print programs' GitHub paths instead of downloading them"
+	cat <<"EOF"
+Downloads source code of Game Boy programs used as RGBDS test cases.
+Options:
+    -h, --help          show this help message
+    --only-free         download only freely licensed codebases
+    --only-internal     do not download any codebases
+    --get-deps          install programs' own dependencies instead of themselves
+    --get-hash          print programs' commit hashes instead of downloading them
+    --get-paths         print programs' GitHub paths instead of downloading them
+EOF
 }
 
 # Parse options in pure Bash because macOS `getopt` is stuck
diff --git a/test/run-tests.sh b/test/run-tests.sh
index f49e7436..3720d037 100755
--- a/test/run-tests.sh
+++ b/test/run-tests.sh
@@ -9,14 +9,17 @@ export SOURCE_DATE_EPOCH=609165296
 cd "$(dirname "$0")"
 
 usage() {
-	echo "Runs regression tests on RGBDS."
-	echo "Options:"
-	echo "    -h, --help            show this help message"
-	echo "    --only-internal       only run tests that build local examples"
-	echo "    --only-external       only run tests that build external codebases"
-	echo "    --only-free           skip tests that build nonfree codebases"
-	echo "    --installed-rgbds     use the system installed RGBDS"
-	echo "                          (only compatible with external codebases)"
+	cat <<"EOF"
+Runs regression tests on RGBDS.
+Options:
+    -h, --help            show this help message
+    --only-internal       only run tests that build local examples
+    --only-external       only run tests that build external codebases
+    --only-free           skip tests that build nonfree codebases
+    --os <os>             skip tests known to fail on <os> (e.g. `macos-14`)
+    --installed-rgbds     use the system installed RGBDS
+                          (only compatible with external codebases)
+EOF
 }
 
 # Parse options in pure Bash because macOS `getopt` is stuck