diff --git a/packages/media/cpp/.gitignore b/packages/media/cpp/.gitignore
index a17fb600..772991b9 100644
--- a/packages/media/cpp/.gitignore
+++ b/packages/media/cpp/.gitignore
@@ -3,7 +3,7 @@ build/
 CMakeUserPresets.json
 .vs/
 *.user
-
+cache
 # Windows libvips SDK (see scripts/fetch-vips-windows.ps1)
 third_party/vips-dev-*/
 third_party/vips-dev-x64-all*.zip
diff --git a/packages/media/cpp/build-linux.sh b/packages/media/cpp/build-linux.sh
index 4fb0f9c0..c878ec2d 100644
--- a/packages/media/cpp/build-linux.sh
+++ b/packages/media/cpp/build-linux.sh
@@ -1,6 +1,14 @@
 #!/usr/bin/env bash
-#rm -rf /tmp/polymech-build
-mkdir -p /tmp/polymech-build
+set -euo pipefail
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+mkdir -p /tmp/polymech-media-build
 export PATH="/snap/bin:$PATH"
-cmake -S ./ -B /tmp/polymech-build -DCMAKE_BUILD_TYPE=Release
-cmake --build /tmp/polymech-build
+cmake -S "$SCRIPT_DIR" -B /tmp/polymech-media-build -DCMAKE_BUILD_TYPE=Release
+cmake --build /tmp/polymech-media-build
+echo ""
+echo "Built binary (CMake RUNTIME_OUTPUT_DIRECTORY): ${SCRIPT_DIR}/dist/media-img"
+if [[ -f "${SCRIPT_DIR}/dist/media-img" ]]; then
+  ls -la "${SCRIPT_DIR}/dist/media-img"
+else
+  echo "Warning: ${SCRIPT_DIR}/dist/media-img not found; see CMake build log above." >&2
+fi
diff --git a/packages/media/cpp/dist/media-img b/packages/media/cpp/dist/media-img
new file mode 100644
index 00000000..ec6eb0cc
Binary files /dev/null and b/packages/media/cpp/dist/media-img differ
diff --git a/packages/media/cpp/install-lnx.sh b/packages/media/cpp/install-lnx.sh
index c54a8682..1253090e 100644
--- a/packages/media/cpp/install-lnx.sh
+++ b/packages/media/cpp/install-lnx.sh
@@ -5,7 +5,7 @@
 # Tested on: Ubuntu 20.04+ / Debian 11+
 # Usage:     sudo bash install-lnx.sh
 # ─────────────────────────────────────────────────────────────────────────────
-set -euo pipefail
+#set -euo pipefail
 
 echo "── media-img (C++) Linux dependency installer ──"
 
diff --git a/packages/media/cpp/package.json b/packages/media/cpp/package.json
index 86906346..03298b05 100644
--- a/packages/media/cpp/package.json
+++ b/packages/media/cpp/package.json
@@ -21,11 +21,11 @@
     "test:media:rest": "node orchestrator/test-media.mjs --rest-only",
     "test:media:ipc": "node orchestrator/test-media.mjs --ipc-only",
     "test:media:url": "node orchestrator/test-media.mjs --url-only",
-    "run": ".\\dist\\media-img.exe --help",
-    "resize": ".\\dist\\media-img.exe resize",
-    "serve": ".\\dist\\media-img.exe serve --help",
-    "ipc": ".\\dist\\media-img.exe ipc --help",
-    "kbot": ".\\dist\\media-img.exe kbot --help"
+    "run": "node scripts/invoke-media-img.mjs --help",
+    "resize": "node scripts/invoke-media-img.mjs resize",
+    "serve": "node scripts/invoke-media-img.mjs serve --help",
+    "ipc": "node scripts/invoke-media-img.mjs ipc --help",
+    "kbot": "node scripts/invoke-media-img.mjs kbot --help"
   },
   "keywords": [],
   "author": "",
diff --git a/packages/media/cpp/scripts/invoke-media-img.mjs b/packages/media/cpp/scripts/invoke-media-img.mjs
new file mode 100644
index 00000000..63b4c48c
--- /dev/null
+++ b/packages/media/cpp/scripts/invoke-media-img.mjs
@@ -0,0 +1,15 @@
+#!/usr/bin/env node
+/**
+ * Cross-platform launcher: runs dist/media-img or dist/media-img.exe from package root.
+ * Used by package.json convenience scripts on Linux, macOS, and Windows.
+ */
+import { spawnSync } from 'node:child_process';
+import { resolve, dirname } from 'node:path';
+import { fileURLToPath } from 'node:url';
+
+const root = resolve(dirname(fileURLToPath(import.meta.url)), '..');
+const exe = process.platform === 'win32' ? 'media-img.exe' : 'media-img';
+const bin = resolve(root, 'dist', exe);
+const args = process.argv.slice(2);
+const r = spawnSync(bin, args, { stdio: 'inherit' });
+process.exit(r.status ?? 1);