diff --git a/build/platforms/BUILD.bazel b/build/platforms/BUILD.bazel
index 217350a..293af9b 100644
--- a/build/platforms/BUILD.bazel
+++ b/build/platforms/BUILD.bazel
@@ -18,18 +18,6 @@
     visibility = ["//visibility:public"],
 )
 
-# Linux x86_64 platform with static linking
-# (i.e. Metropolis node, scratch containers...).
-platform(
-    name = "linux_amd64_static",
-    constraint_values = [
-        "@platforms//os:linux",
-        "@platforms//cpu:x86_64",
-        "//build/platforms/linkmode:musl-static",
-    ],
-    visibility = ["//visibility:public"],
-)
-
 platform(
     name = "remote_amd64",
     constraint_values = [
diff --git a/build/platforms/linkmode/BUILD.bazel b/build/platforms/linkmode/BUILD.bazel
index 8a7f99c..f749e9d 100644
--- a/build/platforms/linkmode/BUILD.bazel
+++ b/build/platforms/linkmode/BUILD.bazel
@@ -1,14 +1,7 @@
-package(
-    default_visibility = ["//visibility:public"],
-)
+load("@bazel_skylib//rules:common_settings.bzl", "bool_flag")
 
-# Minimal Metropolis node environment. No dynamic linker,
-# so everything has to be statically linked.
-constraint_value(
-    name = "musl-static",
-    constraint_setting = ":linkmode",
-)
-
-constraint_setting(
-    name = "linkmode",
+bool_flag(
+    name = "static",
+    build_setting_default = False,
+    visibility = ["//visibility:public"],
 )
diff --git a/build/toolchain/BUILD.bazel b/build/toolchain/BUILD.bazel
index c4c5ad8..75cd911 100644
--- a/build/toolchain/BUILD.bazel
+++ b/build/toolchain/BUILD.bazel
@@ -49,6 +49,11 @@
 
 host_cc_toolchain_config(name = "host_cc_k8_toolchain_config")
 
+config_setting(
+    name = "is_dynamic",
+    flag_values = {"//build/platforms/linkmode:static": "False"},
+)
+
 toolchain(
     name = "host_cc_toolchain",
     exec_compatible_with = [
@@ -59,6 +64,9 @@
         "@platforms//os:linux",
         "@platforms//cpu:x86_64",
     ],
+    target_settings = [
+        ":is_dynamic",
+    ],
     toolchain = ":host_cc_k8_toolchain",
     toolchain_type = "@bazel_tools//tools/cpp:toolchain_type",
 )
diff --git a/build/toolchain/musl-host-gcc/BUILD.bazel b/build/toolchain/musl-host-gcc/BUILD.bazel
index 39a0eb4..fd7e553 100644
--- a/build/toolchain/musl-host-gcc/BUILD.bazel
+++ b/build/toolchain/musl-host-gcc/BUILD.bazel
@@ -42,6 +42,11 @@
     ],
 )
 
+config_setting(
+    name = "is_static",
+    flag_values = {"//build/platforms/linkmode:static": "True"},
+)
+
 toolchain(
     name = "musl_host_toolchain",
     exec_compatible_with = [
@@ -51,7 +56,9 @@
     target_compatible_with = [
         "@platforms//cpu:x86_64",
         "@platforms//os:linux",
-        "//build/platforms/linkmode:musl-static",
+    ],
+    target_settings = [
+        ":is_static",
     ],
     toolchain = ":musl_host_cc_k8_toolchain",
     toolchain_type = "@bazel_tools//tools/cpp:toolchain_type",