diff --git a/patchbay-runner/src/sim/runner.rs b/patchbay-runner/src/sim/runner.rs
index c922f2a..56497e0 100644
--- a/patchbay-runner/src/sim/runner.rs
+++ b/patchbay-runner/src/sim/runner.rs
@@ -1580,17 +1580,50 @@ fn rewrite_counted_bare_ref(s: &str, idx: usize, counts: &HashMap<String, usize>
     s.to_string()
 }
 
+/// Rewrite capture keys in `StepResults` for counted devices.
+///
+/// Results keys like `"fetcher.size"` (set during template expansion) need to become
+/// `"fetcher-0.size"` when the step is expanded for a counted device.
+fn rewrite_results_counted_refs(
+    results: &mut StepResults,
+    idx: usize,
+    counts: &HashMap<String, usize>,
+) {
+    let rewrite = |opt: &mut Option<String>| {
+        if let Some(ref mut key) = opt {
+            *key = rewrite_counted_bare_ref(key, idx, counts);
+        }
+    };
+    rewrite(&mut results.duration);
+    rewrite(&mut results.up_bytes);
+    rewrite(&mut results.down_bytes);
+    rewrite(&mut results.latency_ms);
+}
+
 fn rewrite_step_counted_refs(step: &mut Step, idx: usize, counts: &HashMap<String, usize>) {
     match step {
-        Step::Run { cmd, requires, .. } => {
+        Step::Run {
+            cmd,
+            requires,
+            results,
+            ..
+        } => {
             for part in cmd.iter_mut() {
                 *part = rewrite_counted_refs(part, idx, counts);
             }
             for req in requires.iter_mut() {
                 *req = rewrite_counted_bare_ref(req, idx, counts);
             }
+            if let Some(res) = results {
+                rewrite_results_counted_refs(res, idx, counts);
+            }
         }
-        Step::Spawn { cmd, requires, .. } => {
+        Step::Spawn {
+            cmd,
+            requires,
+            results,
+            ..
+        } => {
             if let Some(cmd) = cmd {
                 for part in cmd.iter_mut() {
                     *part = rewrite_counted_refs(part, idx, counts);
@@ -1599,6 +1632,10 @@ fn rewrite_step_counted_refs(step: &mut Step, idx: usize, counts: &HashMap<Strin
             for req in requires.iter_mut() {
                 *req = rewrite_counted_bare_ref(req, idx, counts);
             }
+            // Rewrite results capture keys (e.g. "fetcher.size" → "fetcher-0.size")
+            if let Some(res) = results {
+                rewrite_results_counted_refs(res, idx, counts);
+            }
         }
         Step::GenFile { content, .. } => {
             *content = rewrite_counted_refs(content, idx, counts);
diff --git a/patchbay/src/netns.rs b/patchbay/src/netns.rs
index c995c47..ee39e77 100644
--- a/patchbay/src/netns.rs
+++ b/patchbay/src/netns.rs
@@ -272,9 +272,8 @@ impl Worker {
                     let mut builder = tokio::runtime::Builder::new_current_thread();
                     builder.enable_all();
                     let overlay_for_threads = thread_opts.dns_overlay.clone();
-                    builder.on_thread_start(move || {
-                        apply_mount_overlay(overlay_for_threads.as_ref())
-                    });
+                    builder
+                        .on_thread_start(move || apply_mount_overlay(overlay_for_threads.as_ref()));
                     let rt = builder.build().context("build tokio runtime")?;
                     Ok((ns_fd, rt))
                 })();
diff --git a/patchbay/src/tests/route.rs b/patchbay/src/tests/route.rs
index c28d5fd..5e9eea6 100644
--- a/patchbay/src/tests/route.rs
+++ b/patchbay/src/tests/route.rs
@@ -237,9 +237,8 @@ async fn proc_net_route_shows_namespace_routes() -> Result<()> {
         .build()
         .await?;
 
-    let route_content = dev.run_sync(|| {
-        std::fs::read_to_string("/proc/net/route").context("read /proc/net/route")
-    })?;
+    let route_content = dev
+        .run_sync(|| std::fs::read_to_string("/proc/net/route").context("read /proc/net/route"))?;
 
     // The namespace must contain eth0 with a default route.
     assert!(
diff --git a/ui/package-lock.json b/ui/package-lock.json
index db76d9b..7cd4a4b 100644
--- a/ui/package-lock.json
+++ b/ui/package-lock.json
@@ -57,7 +57,6 @@
       "integrity": "sha512-CGOfOJqWjg2qW/Mb6zNsDm+u5vFQ8DxXfbM09z69p5Z6+mE1ikP2jUXw+j42Pf1XTYED2Rni5f95npYeuwMDQA==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@babel/code-frame": "^7.29.0",
         "@babel/generator": "^7.29.0",
@@ -1236,7 +1235,6 @@
       "integrity": "sha512-4K3bqJpXpqfg2XKGK9bpDTc6xO/xoUP/RBWS7AtRMug6zZFaRekiLzjVtAoZMquxoAbzBvy5nxQ7veS5eYzf8A==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "undici-types": "~7.18.0"
       }
@@ -1254,7 +1252,6 @@
       "integrity": "sha512-z9VXpC7MWrhfWipitjNdgCauoMLRdIILQsAEV+ZesIzBq/oUlxk0m3ApZuMFCXdnS4U7KrI+l3WRUEGQ8K1QKw==",
       "devOptional": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@types/prop-types": "*",
         "csstype": "^3.2.2"
@@ -1369,7 +1366,6 @@
         }
       ],
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "baseline-browser-mapping": "^2.9.0",
         "caniuse-lite": "^1.0.30001759",
@@ -1495,7 +1491,6 @@
       "resolved": "https://registry.npmjs.org/d3-selection/-/d3-selection-3.0.0.tgz",
       "integrity": "sha512-fmTRWbNMmsmWq6xJV8D19U/gw/bwrHfNXxrIN+HfZgnzqTHp9jOmKMhsTUjXOJnZOdZY9Q28y4yebKzqDKlxlQ==",
       "license": "ISC",
-      "peer": true,
       "engines": {
         "node": ">=12"
       }
@@ -1893,7 +1888,6 @@
       "resolved": "https://registry.npmjs.org/react/-/react-18.3.1.tgz",
       "integrity": "sha512-wS+hAgJShR0KhEvPJArfuPVN1+Hz1t0Y6n5jLrGQbkb4urgPE/0Rve+1kMB1v/oWgHgm4WIcV+i7F2pTVj+2iQ==",
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "loose-envify": "^1.1.0"
       },
@@ -1906,7 +1900,6 @@
       "resolved": "https://registry.npmjs.org/react-dom/-/react-dom-18.3.1.tgz",
       "integrity": "sha512-5m4nQKp+rZRb09LNH59GM4BxTh9251/ylbKIbpe7TpGxfJ+9kv6BLkLBXIjjspbgbnIBNqlI23tRnTWT0snUIw==",
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "loose-envify": "^1.1.0",
         "scheduler": "^0.23.2"
@@ -1969,7 +1962,6 @@
       "integrity": "sha512-wbT0mBmWbIvvq8NeEYWWvevvxnOyhKChir47S66WCxw1SXqhw7ssIYejnQEVt7XYQpsj2y8F9PM+Cr3SNEa0gw==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@types/estree": "1.0.8"
       },
@@ -2124,7 +2116,6 @@
       "integrity": "sha512-o5a9xKjbtuhY6Bi5S3+HvbRERmouabWbyUcpXXUA1u+GNUKoROi9byOJ8M0nHbHYHkYICiMlqxkg1KkYmm25Sw==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "esbuild": "^0.21.3",
         "postcss": "^8.4.43",