diff --git a/absl/base/CMakeLists.txt b/absl/base/CMakeLists.txt
index c7233cb3..7e600f0b 100644
--- a/absl/base/CMakeLists.txt
+++ b/absl/base/CMakeLists.txt
@@ -16,6 +16,7 @@
 
 find_library(LIBRT rt)
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     atomic_hook
@@ -28,6 +29,7 @@ absl_cc_library(
     ${ABSL_DEFAULT_COPTS}
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     errno_saver
@@ -52,6 +54,7 @@ absl_cc_library(
     ${ABSL_DEFAULT_COPTS}
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     raw_logging_internal
@@ -68,6 +71,7 @@ absl_cc_library(
     ${ABSL_DEFAULT_COPTS}
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     spinlock_wait
@@ -131,6 +135,7 @@ absl_cc_library(
   PUBLIC
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     malloc_internal
@@ -151,6 +156,7 @@ absl_cc_library(
     Threads::Threads
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     base_internal
@@ -207,6 +213,7 @@ absl_cc_library(
   PUBLIC
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     throw_delegate
@@ -221,6 +228,7 @@ absl_cc_library(
     absl::raw_logging_internal
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     exception_testing
@@ -234,6 +242,7 @@ absl_cc_library(
   TESTONLY
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     pretty_function
@@ -243,6 +252,7 @@ absl_cc_library(
     ${ABSL_DEFAULT_COPTS}
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     exception_safety_testing
@@ -276,6 +286,7 @@ absl_cc_test(
     GTest::gtest_main
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     atomic_hook_test_helper
@@ -375,6 +386,7 @@ absl_cc_test(
     GTest::gtest_main
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     spinlock_test_common
@@ -409,6 +421,7 @@ absl_cc_test(
     GTest::gtest_main
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     endian
@@ -519,6 +532,7 @@ absl_cc_test(
     GTest::gtest_main
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     scoped_set_env
@@ -570,6 +584,7 @@ absl_cc_test(
     GTest::gtest_main
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     strerror
@@ -601,6 +616,7 @@ absl_cc_test(
     GTest::gtest_main
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     fast_type_id
diff --git a/absl/cleanup/CMakeLists.txt b/absl/cleanup/CMakeLists.txt
index 26a6d0dc..f5af40b4 100644
--- a/absl/cleanup/CMakeLists.txt
+++ b/absl/cleanup/CMakeLists.txt
@@ -12,6 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     cleanup_internal
diff --git a/absl/container/BUILD.bazel b/absl/container/BUILD.bazel
index 2095e57d..d733cb24 100644
--- a/absl/container/BUILD.bazel
+++ b/absl/container/BUILD.bazel
@@ -217,11 +217,6 @@ cc_test(
     ],
 )
 
-NOTEST_TAGS_NONMOBILE = [
-    "no_test_darwin_x86_64",
-    "no_test_loonix",
-]
-
 NOTEST_TAGS_MOBILE = [
     "no_test_android_arm",
     "no_test_android_arm64",
@@ -229,8 +224,6 @@ NOTEST_TAGS_MOBILE = [
     "no_test_ios_x86_64",
 ]
 
-NOTEST_TAGS = NOTEST_TAGS_MOBILE + NOTEST_TAGS_NONMOBILE
-
 cc_library(
     name = "flat_hash_map",
     hdrs = ["flat_hash_map.h"],
@@ -251,7 +244,7 @@ cc_test(
     srcs = ["flat_hash_map_test.cc"],
     copts = ABSL_TEST_COPTS,
     linkopts = ABSL_DEFAULT_LINKOPTS,
-    tags = NOTEST_TAGS_NONMOBILE,
+    tags = ["no_test_loonix"],
     deps = [
         ":flat_hash_map",
         ":hash_generator_testing",
@@ -285,7 +278,7 @@ cc_test(
     srcs = ["flat_hash_set_test.cc"],
     copts = ABSL_TEST_COPTS + ["-DUNORDERED_SET_CXX17"],
     linkopts = ABSL_DEFAULT_LINKOPTS,
-    tags = NOTEST_TAGS_NONMOBILE,
+    tags = ["no_test_loonix"],
     deps = [
         ":flat_hash_set",
         ":hash_generator_testing",
@@ -321,7 +314,7 @@ cc_test(
     srcs = ["node_hash_map_test.cc"],
     copts = ABSL_TEST_COPTS,
     linkopts = ABSL_DEFAULT_LINKOPTS,
-    tags = NOTEST_TAGS_NONMOBILE,
+    tags = ["no_test_loonix"],
     deps = [
         ":hash_generator_testing",
         ":node_hash_map",
@@ -354,7 +347,7 @@ cc_test(
     srcs = ["node_hash_set_test.cc"],
     copts = ABSL_TEST_COPTS + ["-DUNORDERED_SET_CXX17"],
     linkopts = ABSL_DEFAULT_LINKOPTS,
-    tags = NOTEST_TAGS_NONMOBILE,
+    tags = ["no_test_loonix"],
     deps = [
         ":node_hash_set",
         ":unordered_set_constructor_test",
@@ -383,7 +376,7 @@ cc_test(
     srcs = ["internal/container_memory_test.cc"],
     copts = ABSL_TEST_COPTS,
     linkopts = ABSL_DEFAULT_LINKOPTS,
-    tags = NOTEST_TAGS_NONMOBILE,
+    tags = ["no_test_loonix"],
     deps = [
         ":container_memory",
         ":test_instance_tracker",
@@ -410,7 +403,7 @@ cc_test(
     srcs = ["internal/hash_function_defaults_test.cc"],
     copts = ABSL_TEST_COPTS,
     linkopts = ABSL_DEFAULT_LINKOPTS,
-    tags = NOTEST_TAGS,
+    tags = NOTEST_TAGS_MOBILE + ["no_test_loonix"],
     deps = [
         ":hash_function_defaults",
         "//absl/hash",
@@ -608,7 +601,7 @@ cc_test(
     srcs = ["internal/raw_hash_set_test.cc"],
     copts = ABSL_TEST_COPTS,
     linkstatic = 1,
-    tags = NOTEST_TAGS,
+    tags = NOTEST_TAGS_MOBILE + ["no_test_loonix"],
     deps = [
         ":container_memory",
         ":hash_function_defaults",
@@ -698,7 +691,7 @@ cc_test(
     srcs = ["internal/layout_test.cc"],
     copts = ABSL_TEST_COPTS,
     linkopts = ABSL_DEFAULT_LINKOPTS,
-    tags = NOTEST_TAGS,
+    tags = NOTEST_TAGS_MOBILE + ["no_test_loonix"],
     visibility = ["//visibility:private"],
     deps = [
         ":layout",
@@ -845,7 +838,7 @@ cc_test(
     srcs = ["internal/unordered_set_test.cc"],
     copts = ABSL_TEST_COPTS,
     linkopts = ABSL_DEFAULT_LINKOPTS,
-    tags = NOTEST_TAGS_NONMOBILE,
+    tags = ["no_test_loonix"],
     deps = [
         ":unordered_set_constructor_test",
         ":unordered_set_lookup_test",
@@ -860,7 +853,7 @@ cc_test(
     srcs = ["internal/unordered_map_test.cc"],
     copts = ABSL_TEST_COPTS,
     linkopts = ABSL_DEFAULT_LINKOPTS,
-    tags = NOTEST_TAGS_NONMOBILE,
+    tags = ["no_test_loonix"],
     deps = [
         ":unordered_map_constructor_test",
         ":unordered_map_lookup_test",
@@ -875,7 +868,7 @@ cc_test(
     srcs = ["sample_element_size_test.cc"],
     copts = ABSL_TEST_COPTS,
     linkopts = ABSL_DEFAULT_LINKOPTS,
-    tags = NOTEST_TAGS_NONMOBILE,
+    tags = ["no_test_loonix"],
     visibility = ["//visibility:private"],
     deps = [
         ":flat_hash_map",
diff --git a/absl/container/CMakeLists.txt b/absl/container/CMakeLists.txt
index 7176907d..aad69fa2 100644
--- a/absl/container/CMakeLists.txt
+++ b/absl/container/CMakeLists.txt
@@ -42,6 +42,7 @@ absl_cc_library(
     absl::utility
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     btree_test_common
@@ -84,6 +85,7 @@ absl_cc_test(
     GTest::gmock_main
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     compressed_tuple
@@ -162,6 +164,7 @@ absl_cc_test(
     GTest::gmock_main
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     inlined_vector_internal
@@ -194,6 +197,7 @@ absl_cc_library(
   PUBLIC
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     counting_allocator
@@ -240,6 +244,7 @@ absl_cc_test(
     GTest::gmock_main
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     test_instance_tracker
@@ -411,6 +416,7 @@ absl_cc_test(
     GTest::gmock_main
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     container_memory
@@ -440,6 +446,7 @@ absl_cc_test(
     GTest::gmock_main
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     hash_function_defaults
@@ -472,6 +479,7 @@ absl_cc_test(
     GTest::gmock_main
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     hash_generator_testing
@@ -489,6 +497,7 @@ absl_cc_library(
   TESTONLY
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     hash_policy_testing
@@ -514,6 +523,7 @@ absl_cc_test(
     GTest::gmock_main
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     hash_policy_traits
@@ -538,6 +548,7 @@ absl_cc_test(
     GTest::gmock_main
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     hashtablez_sampler
@@ -569,6 +580,7 @@ absl_cc_test(
     GTest::gmock_main
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     hashtable_debug
@@ -580,6 +592,7 @@ absl_cc_library(
     absl::hashtable_debug_hooks
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     hashtable_debug_hooks
@@ -592,6 +605,7 @@ absl_cc_library(
   PUBLIC
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     node_slot_policy
@@ -617,6 +631,7 @@ absl_cc_test(
     GTest::gmock_main
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     raw_hash_map
@@ -631,6 +646,7 @@ absl_cc_library(
   PUBLIC
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     container_common
@@ -642,6 +658,7 @@ absl_cc_library(
     absl::type_traits
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     raw_hash_set
@@ -704,6 +721,7 @@ absl_cc_test(
     GTest::gmock_main
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     layout
@@ -737,6 +755,7 @@ absl_cc_test(
     GTest::gmock_main
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     tracked
@@ -749,6 +768,7 @@ absl_cc_library(
   TESTONLY
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     unordered_map_constructor_test
@@ -763,6 +783,7 @@ absl_cc_library(
   TESTONLY
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     unordered_map_lookup_test
@@ -777,6 +798,7 @@ absl_cc_library(
   TESTONLY
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     unordered_map_members_test
@@ -790,6 +812,7 @@ absl_cc_library(
   TESTONLY
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     unordered_map_modifiers_test
@@ -804,6 +827,7 @@ absl_cc_library(
   TESTONLY
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     unordered_set_constructor_test
@@ -818,6 +842,7 @@ absl_cc_library(
   TESTONLY
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     unordered_set_lookup_test
@@ -832,6 +857,7 @@ absl_cc_library(
   TESTONLY
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     unordered_set_members_test
@@ -845,6 +871,7 @@ absl_cc_library(
   TESTONLY
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     unordered_set_modifiers_test
diff --git a/absl/debugging/CMakeLists.txt b/absl/debugging/CMakeLists.txt
index b16fa007..5850bdd0 100644
--- a/absl/debugging/CMakeLists.txt
+++ b/absl/debugging/CMakeLists.txt
@@ -93,6 +93,7 @@ absl_cc_test(
     GTest::gmock
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     examine_stack
@@ -147,6 +148,7 @@ absl_cc_test(
     GTest::gmock
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     debugging_internal
@@ -168,6 +170,7 @@ absl_cc_library(
     absl::raw_logging_internal
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     demangle_internal
@@ -298,6 +301,7 @@ absl_cc_test(
     GTest::gmock_main
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     stack_consumption
diff --git a/absl/hash/CMakeLists.txt b/absl/hash/CMakeLists.txt
index 34434fa0..423b74b5 100644
--- a/absl/hash/CMakeLists.txt
+++ b/absl/hash/CMakeLists.txt
@@ -80,6 +80,7 @@ absl_cc_test(
     GTest::gmock_main
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     spy_hash_state
@@ -94,6 +95,7 @@ absl_cc_library(
   TESTONLY
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     city
@@ -121,6 +123,7 @@ absl_cc_test(
     GTest::gmock_main
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     low_level_hash
diff --git a/absl/strings/BUILD.bazel b/absl/strings/BUILD.bazel
index 5f122ee9..813aef45 100644
--- a/absl/strings/BUILD.bazel
+++ b/absl/strings/BUILD.bazel
@@ -736,7 +736,6 @@ cc_test(
         "no_test_android_arm",
         "no_test_android_arm64",
         "no_test_android_x86",
-        "no_test_darwin_x86_64",
         "no_test_ios_x86_64",
         "no_test_loonix",
         "no_test_msvc_x64",
diff --git a/absl/strings/CMakeLists.txt b/absl/strings/CMakeLists.txt
index 5d418c86..d8715ed1 100644
--- a/absl/strings/CMakeLists.txt
+++ b/absl/strings/CMakeLists.txt
@@ -68,6 +68,7 @@ absl_cc_library(
   PUBLIC
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     strings_internal
@@ -385,6 +386,7 @@ absl_cc_library(
   PUBLIC
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     str_format_internal
@@ -523,6 +525,7 @@ absl_cc_test(
     GTest::gmock_main
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     pow10_helper
@@ -550,6 +553,7 @@ absl_cc_test(
     GTest::gmock_main
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     cord_internal
@@ -588,6 +592,7 @@ absl_cc_library(
     absl::type_traits
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     cordz_update_tracker
@@ -614,6 +619,7 @@ absl_cc_test(
     GTest::gmock_main
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     cordz_functions
@@ -642,6 +648,7 @@ absl_cc_test(
     GTest::gmock_main
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     cordz_statistics
@@ -656,6 +663,7 @@ absl_cc_library(
     absl::synchronization
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     cordz_handle
@@ -689,6 +697,7 @@ absl_cc_test(
     GTest::gmock_main
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     cordz_info
@@ -756,6 +765,7 @@ absl_cc_test(
     GTest::gmock_main
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     cordz_sample_token
@@ -794,6 +804,7 @@ absl_cc_test(
     GTest::gmock_main
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     cordz_update_scope
@@ -859,6 +870,7 @@ absl_cc_library(
   PUBLIC
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     cord_rep_test_util
@@ -889,6 +901,7 @@ absl_cc_library(
   TESTONLY
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     cordz_test_helpers
diff --git a/absl/synchronization/CMakeLists.txt b/absl/synchronization/CMakeLists.txt
index 605efe2d..9335c264 100644
--- a/absl/synchronization/CMakeLists.txt
+++ b/absl/synchronization/CMakeLists.txt
@@ -14,6 +14,7 @@
 # limitations under the License.
 #
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     graphcycles_internal
@@ -32,6 +33,7 @@ absl_cc_library(
     absl::raw_logging_internal
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     kernel_timeout_internal
@@ -125,6 +127,7 @@ absl_cc_test(
     GTest::gmock_main
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     thread_pool
@@ -170,6 +173,7 @@ absl_cc_test(
     GTest::gmock_main
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     per_thread_sem_test_common
diff --git a/absl/time/CMakeLists.txt b/absl/time/CMakeLists.txt
index f6ff8bd1..debab3ba 100644
--- a/absl/time/CMakeLists.txt
+++ b/absl/time/CMakeLists.txt
@@ -87,6 +87,7 @@ absl_cc_library(
     $<$<PLATFORM_ID:Darwin>:${CoreFoundation}>
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     time_internal_test_util
diff --git a/absl/types/CMakeLists.txt b/absl/types/CMakeLists.txt
index d7e8614e..830953ae 100644
--- a/absl/types/CMakeLists.txt
+++ b/absl/types/CMakeLists.txt
@@ -43,6 +43,7 @@ absl_cc_library(
   PUBLIC
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     bad_any_cast_impl
@@ -239,6 +240,7 @@ absl_cc_test(
     GTest::gmock_main
 )
 
+# Internal-only target, do not depend on directly.
 absl_cc_library(
   NAME
     conformance_testing