diff --git a/MODULE.bazel b/MODULE.bazel
index 1f3b1d9eb6dbb39e6178d1adda3d3bba76d6f389..d4319c2a83691aba2358829962e22fb1b4f292b8 100644
--- a/MODULE.bazel
+++ b/MODULE.bazel
@@ -43,7 +43,15 @@ resolved = use_repo_rule("@toolchain_utils//toolchain/resolved:defs.bzl", "toolc
     for kind in ("qemu-system", "qemu-img")
 ]
 
-register_toolchains("//labgrid/toolchain/...")
+register_toolchains(
+    "//labgrid/toolchain/qemu-img/...",
+    "//labgrid/toolchain/qemu-system/...",
+    "//labgrid/toolchain/config/qemu/...",
+    "//labgrid/toolchain/config/ssh/...",
+)
+
+#local config must be last to ensure correct resolution when no platform is set.
+register_toolchains("//labgrid/toolchain/config/local/...")
 
 # We need to pin to Python 3.11
 python = use_extension("@rules_python//python/extensions:python.bzl", "python")
diff --git a/e2e/binary/BUILD.bazel b/e2e/binary/BUILD.bazel
index 5c4716cd83ed315658c5c66e4c9f3e0c3e1033b1..eb5f2c3e4d3af079d420e0721748e2a3590fe037 100644
--- a/e2e/binary/BUILD.bazel
+++ b/e2e/binary/BUILD.bazel
@@ -5,7 +5,6 @@ load("@rules_labgrid//labgrid/binary:defs.bzl", "labgrid_binary")
 labgrid_binary(
     name = "printenv",
     src = "@ape//ape:printenv",
-    platform = "@rules_labgrid//labgrid/platform:localhost",
 )
 
 genrule(
diff --git a/e2e/genrule/BUILD.bazel b/e2e/genrule/BUILD.bazel
index 46b3699f766870ba48802ab6f5a73fb06ee4195a..9b221c8ceb91f6a589e083edd95c3e53284e39ef 100644
--- a/e2e/genrule/BUILD.bazel
+++ b/e2e/genrule/BUILD.bazel
@@ -6,7 +6,6 @@ labgrid_genrule(
     name = "actual",
     outs = ["stdout.actual"],
     cmd = "echo -n $LG_STATE > $@",
-    platform = "@rules_labgrid//labgrid/platform:localhost",
 )
 
 write_file(
diff --git a/e2e/run/BUILD.bazel b/e2e/run/BUILD.bazel
index 34cf2f097f7878b1f8a28daec43d3a75e8c079ba..eae006d09ccbb328b5db37e342b70568e1c45db7 100644
--- a/e2e/run/BUILD.bazel
+++ b/e2e/run/BUILD.bazel
@@ -9,7 +9,6 @@ labgrid_genrule(
     srcs = ["@ape//ape:echo"],
     outs = ["run.actual"],
     cmd = "$(location @rules_labgrid//labgrid/run) $(location @ape//ape:echo) world > $@",
-    platform = "@rules_labgrid//labgrid/platform:localhost",
     tools = ["@rules_labgrid//labgrid/run"],
 )
 
@@ -24,7 +23,6 @@ labgrid_genrule(
     srcs = [":echo-with-runfiles"],
     outs = ["runfiles.actual"],
     cmd = "$(location @rules_labgrid//labgrid/run) $(locations :echo-with-runfiles) world > $@",
-    platform = "@rules_labgrid//labgrid/platform:localhost",
     tools = ["@rules_labgrid//labgrid/run"],
 )
 
@@ -34,7 +32,6 @@ labgrid_genrule(
     srcs = ["@ape//ape:bash"],
     outs = ["transfer-file-back.actual"],
     cmd = "$(location @rules_labgrid//labgrid/run) --get output.txt:$@ $(location @ape//ape:bash) -c 'echo world > output.txt'",
-    platform = "@rules_labgrid//labgrid/platform:localhost",
     tools = ["@rules_labgrid//labgrid/run"],
 )
 
@@ -44,7 +41,6 @@ labgrid_genrule(
     srcs = ["@ape//ape:bash"],
     outs = ["transfer-to-ruledir.actual"],
     cmd = "$(location @rules_labgrid//labgrid/run) --get output.txt:$(RULEDIR)/transfer-to-ruledir.actual $(location @ape//ape:bash) -c 'echo world > output.txt'",
-    platform = "@rules_labgrid//labgrid/platform:localhost",
     tools = ["@rules_labgrid//labgrid/run"],
 )
 
@@ -54,7 +50,6 @@ labgrid_genrule(
     srcs = ["@ape//ape:bash"],
     outs = ["transfer-to-d.actual"],
     cmd = "$(location @rules_labgrid//labgrid/run) --get output.txt:$D/transfer-to-d.actual $(location @ape//ape:bash) -c 'echo world > output.txt'",
-    platform = "@rules_labgrid//labgrid/platform:localhost",
     tools = ["@rules_labgrid//labgrid/run"],
 )
 
@@ -64,7 +59,6 @@ labgrid_genrule(
     srcs = ["@ape//ape:bash"],
     outs = ["nested/transfer-to-d.actual"],
     cmd = "$(location @rules_labgrid//labgrid/run) --get output.txt:$D/transfer-to-d.actual $(location @ape//ape:bash) -c 'echo world > output.txt'",
-    platform = "@rules_labgrid//labgrid/platform:localhost",
     tools = ["@rules_labgrid//labgrid/run"],
 )
 
@@ -81,7 +75,6 @@ labgrid_genrule(
     ],
     outs = ["put-file-with-remote.actual"],
     cmd = "$(location @rules_labgrid//labgrid/run) --put $(location :hello.txt):hello.txt $(location @ape//ape:cat) hello.txt > $@",
-    platform = "@rules_labgrid//labgrid/platform:localhost",
     tools = ["@rules_labgrid//labgrid/run"],
 )
 
@@ -93,7 +86,6 @@ labgrid_genrule(
     ],
     outs = ["put-file-without-remote.actual"],
     cmd = "$(location @rules_labgrid//labgrid/run) --put $(location :hello.txt) $(location @ape//ape:cat) $(location :hello.txt) > $@",
-    platform = "@rules_labgrid//labgrid/platform:localhost",
     tools = ["@rules_labgrid//labgrid/run"],
 )
 
@@ -102,7 +94,6 @@ labgrid_genrule(
     srcs = ["@ape//ape:printenv"],
     outs = ["env.actual"],
     cmd = "$(location @rules_labgrid//labgrid/run) --env HELLO=world -- $(location @ape//ape:printenv) HELLO > $@",
-    platform = "@rules_labgrid//labgrid/platform:localhost",
     tools = ["@rules_labgrid//labgrid/run"],
 )
 
@@ -120,7 +111,6 @@ labgrid_run_binary(
         "-c",
         "echo world > output.txt",
     ],
-    platform = "@rules_labgrid//labgrid/platform:localhost",
     tool = "@rules_labgrid//labgrid/run",
 )
 
diff --git a/e2e/run/binary/BUILD.bazel b/e2e/run/binary/BUILD.bazel
index a66181f390bbda46679f9f44498384c1b8146b81..13211365317d6376dc10d2546def461b0a13c8ea 100644
--- a/e2e/run/binary/BUILD.bazel
+++ b/e2e/run/binary/BUILD.bazel
@@ -9,7 +9,6 @@ labgrid_run_binary(
         "-c",
         "echo -n $LG_STATE > $(location :stdout.actual)",
     ],
-    platform = "@rules_labgrid//labgrid/platform:localhost",
     tool = "@ape//ape:bash",
 )
 
diff --git a/e2e/test/BUILD.bazel b/e2e/test/BUILD.bazel
index 7289279bde548e96671d993fd205038546b9fd58..2ae4267da78e966a1881f6f437c1401c76e3a949 100644
--- a/e2e/test/BUILD.bazel
+++ b/e2e/test/BUILD.bazel
@@ -15,7 +15,6 @@ labgrid_test(
     name = "test",
     size = "small",
     src = ":inner",
-    platform = "@rules_labgrid//labgrid/platform:localhost",
 )
 
 # Regression test for: https://gitlab.arm.com/bazel/rules_labgrid/-/issues/77
@@ -23,7 +22,6 @@ labgrid_test(
     name = "src-in-subpackage",
     size = "small",
     src = "//test/subdir:inner",
-    platform = "@rules_labgrid//labgrid/platform:localhost",
 )
 
 write_file(
@@ -46,7 +44,6 @@ labgrid_test(
     name = "src-env",
     size = "small",
     src = ":inner-with-env",
-    platform = "@rules_labgrid//labgrid/platform:localhost",
 )
 
 py_binary(
@@ -60,7 +57,6 @@ labgrid_test(
     size = "small",
     src = ":inner-without-env",
     env = {"GREETING": "hello"},
-    platform = "@rules_labgrid//labgrid/platform:localhost",
 )
 
 py_binary(
@@ -75,7 +71,6 @@ labgrid_test(
     size = "small",
     src = ":inner-with-override-env",
     env = {"GREETING": "hello"},
-    platform = "@rules_labgrid//labgrid/platform:localhost",
 )
 
 write_file(
@@ -101,7 +96,6 @@ labgrid_test(
         "hello",
         "world",
     ],
-    platform = "@rules_labgrid//labgrid/platform:localhost",
 )
 
 py_binary(
@@ -116,7 +110,6 @@ labgrid_test(
     size = "small",
     src = ":inner-without-data",
     data = [":hello.txt"],
-    platform = "@rules_labgrid//labgrid/platform:localhost",
 )
 
 write_file(
@@ -144,7 +137,6 @@ labgrid_test(
     env = {
         "HELLO_PATH": "$(location :hello.txt)",
     },
-    platform = "@rules_labgrid//labgrid/platform:localhost",
 )
 
 write_file(
@@ -170,6 +162,5 @@ labgrid_test(
     name = "sharding",
     size = "small",
     src = ":inner-sharding",
-    platform = "@rules_labgrid//labgrid/platform:localhost",
     shard_count = 2,
 )
diff --git a/e2e/test/subdir/BUILD.bazel b/e2e/test/subdir/BUILD.bazel
index 3a2dc24045ea0ef3421c2fd7d6c751578fc1ef1b..2713f71f78501d22f72469d57c8531e1187eacf0 100644
--- a/e2e/test/subdir/BUILD.bazel
+++ b/e2e/test/subdir/BUILD.bazel
@@ -15,5 +15,4 @@ labgrid_test(
     name = "src-in-upper-package",
     size = "small",
     src = "//test:inner",
-    platform = "@rules_labgrid//labgrid/platform:localhost",
 )
diff --git a/examples/custom-runners/archive-transfer/BUILD.bazel b/examples/custom-runners/archive-transfer/BUILD.bazel
index d2742d681b433f0c2e059a7d8fb9b13e1e15151f..615722a60c234aa6e0eab5300d64253eddb4ff1a 100644
--- a/examples/custom-runners/archive-transfer/BUILD.bazel
+++ b/examples/custom-runners/archive-transfer/BUILD.bazel
@@ -32,7 +32,6 @@ labgrid_genrule(
     ],
     outs = ["actual.out"],
     cmd = "$(location :run) --put=$(location data.txt) --out=$(location :actual.out) $(location @ape//ape:cat) data.txt",
-    platform = "@rules_labgrid//labgrid/platform:localhost",
     tools = [":run"],
 )
 
diff --git a/labgrid/constraint/device/BUILD.bazel b/labgrid/constraint/device/BUILD.bazel
index 5cb7ef796c9bccb3ae6dfebc274bcf960e874abe..1a16d128c18a1a24e26b2de3970cef506e7803be 100644
--- a/labgrid/constraint/device/BUILD.bazel
+++ b/labgrid/constraint/device/BUILD.bazel
@@ -3,12 +3,6 @@ constraint_setting(
     visibility = ["//visibility:public"],
 )
 
-constraint_value(
-    name = "localhost",
-    constraint_setting = ":device",
-    visibility = ["//visibility:public"],
-)
-
 constraint_value(
     name = "qemu",
     constraint_setting = ":device",
diff --git a/labgrid/platform/BUILD.bazel b/labgrid/platform/BUILD.bazel
index bc30a062a6753fcde8bf63379b970b8e228b05f5..80e02fde56288767251156c9a96c52e2910587bf 100644
--- a/labgrid/platform/BUILD.bazel
+++ b/labgrid/platform/BUILD.bazel
@@ -1,12 +1,5 @@
 CPUS = ("amd64", "arm64")
 
-platform(
-    name = "localhost",
-    constraint_values = ["//labgrid/constraint/device:localhost"],
-    parents = ["@local_config_platform//:host"],
-    visibility = ["//visibility:public"],
-)
-
 [
     platform(
         name = "qemu-{}-linux".format(cpu),
diff --git a/labgrid/toolchain/config/localhost/BUILD.bazel b/labgrid/toolchain/config/local/BUILD.bazel
similarity index 75%
rename from labgrid/toolchain/config/localhost/BUILD.bazel
rename to labgrid/toolchain/config/local/BUILD.bazel
index 8cf578d12f2dbbceadca1c00624c47a691678756..12146d0c0341d3d8705b3aad700b8a196cb8399a 100644
--- a/labgrid/toolchain/config/localhost/BUILD.bazel
+++ b/labgrid/toolchain/config/local/BUILD.bazel
@@ -7,12 +7,10 @@ labgrid_state(
 )
 
 labgrid_config_toolchain(
-    name = "localhost",
+    name = "local",
     src = "config.yaml",
     state = ":state",
-    target_compatible_with = [
-        "//labgrid/constraint/device:localhost",
-    ],
+    target_compatible_with = [],
     deps = [
         "//bazel/labgrid/driver",
         "//bazel/labgrid/strategy",
diff --git a/labgrid/toolchain/config/localhost/config.yaml b/labgrid/toolchain/config/local/config.yaml
similarity index 100%
rename from labgrid/toolchain/config/localhost/config.yaml
rename to labgrid/toolchain/config/local/config.yaml