diff --git a/.github/workflows/validations.yml b/.github/workflows/validations.yml
index fd6569a..82d6fa5 100644
--- a/.github/workflows/validations.yml
+++ b/.github/workflows/validations.yml
@@ -48,9 +48,7 @@ jobs:
       - uses: astral-sh/setup-uv@v6
 
       - name: Type-check master config
-        run: |
-          uv sync
-          uv run --package master ty check --error-on-warning master/master.cfg master/custom_steps.py
+        run: uv run --package master ty check --error-on-warning master/master.cfg master/custom_steps.py
 
   bandit:
     runs-on: ubuntu-slim
diff --git a/master/master.cfg b/master/master.cfg
index 42c06ac..ab2738e 100644
--- a/master/master.cfg
+++ b/master/master.cfg
@@ -580,16 +580,16 @@ def add_vcpkg_step(factory, builder_type):
     )
 
     if builder_type.os == "windows":
-        disable_metrics_cmd = Interpolate('type nul > "%(prop:builddir)s\\vcpkg\\vcpkg.disable-metrics"')
+        bootstrap_cmd = Interpolate('"%(prop:builddir)s\\vcpkg\\bootstrap-vcpkg.bat" -disableMetrics')
     else:
-        disable_metrics_cmd = Interpolate('touch "%(prop:builddir)s/vcpkg/vcpkg.disable-metrics"')
+        bootstrap_cmd = Interpolate('"%(prop:builddir)s/vcpkg/bootstrap-vcpkg.sh" -disableMetrics')
 
     factory.addStep(
         ShellCommand(
-            name="Disable vcpkg metrics",
+            name="Bootstrap vcpkg",
             locks=[performance_lock.access("counting")],
-            haltOnFailure=False,
-            command=disable_metrics_cmd,
+            haltOnFailure=True,
+            command=bootstrap_cmd,
         )
     )
 
diff --git a/master/pyproject.toml b/master/pyproject.toml
index 9caa7f8..eb6a417 100644
--- a/master/pyproject.toml
+++ b/master/pyproject.toml
@@ -10,3 +10,8 @@ dependencies = [
     "twisted>=23.10",
     "zstandard>=0.22", # log chunk compression (c['logCompressionMethod'])
 ]
+
+[dependency-groups]
+dev = [
+    "ty~=0.0.16",
+]
diff --git a/pyproject.toml b/pyproject.toml
index db00d3c..2ffe232 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -6,7 +6,6 @@ requires-python = ">=3.12"
 [dependency-groups]
 dev = [
     "ruff~=0.15.0",
-    "ty~=0.0.16",
     "pre-commit~=4.2",
 ]
 
diff --git a/uv.lock b/uv.lock
index bf088c7..1c9bd8f 100644
--- a/uv.lock
+++ b/uv.lock
@@ -448,7 +448,6 @@ source = { virtual = "." }
 dev = [
     { name = "pre-commit" },
     { name = "ruff" },
-    { name = "ty" },
 ]
 
 [package.metadata]
@@ -457,7 +456,6 @@ dev = [
 dev = [
     { name = "pre-commit", specifier = "~=4.2" },
     { name = "ruff", specifier = "~=0.15.0" },
-    { name = "ty", specifier = "~=0.0.16" },
 ]
 
 [[package]]
@@ -602,6 +600,11 @@ dependencies = [
     { name = "zstandard" },
 ]
 
+[package.dev-dependencies]
+dev = [
+    { name = "ty" },
+]
+
 [package.metadata]
 requires-dist = [
     { name = "buildbot", specifier = "~=4.0" },
@@ -612,6 +615,9 @@ requires-dist = [
     { name = "zstandard", specifier = ">=0.22" },
 ]
 
+[package.metadata.requires-dev]
+dev = [{ name = "ty", specifier = "~=0.0.16" }]
+
 [[package]]
 name = "msgpack"
 version = "1.2.1"