diff --git a/strawApp/build.gradle.kts b/strawApp/build.gradle.kts
index d1c4b0dd2..0a4c50df7 100644
--- a/strawApp/build.gradle.kts
+++ b/strawApp/build.gradle.kts
@@ -142,6 +142,11 @@ val cargoBin: String = "$cargoHome/bin/cargo"
 val ndkHome: String = System.getenv("ANDROID_NDK_HOME")
     ?: System.getenv("ANDROID_NDK_ROOT")
     ?: "/caches/android-sdk/ndk/27.2.12479018"
+// Honor CARGO_TARGET_DIR if set (we redirect it to /caches on crafting-table
+// because the container's writable rootfs hits 100% before the cross-compile
+// for 4 ABIs finishes). Falls back to the default `<workspace>/target`.
+val cargoTargetDir: String = System.getenv("CARGO_TARGET_DIR")
+    ?: "$rustRoot/target"
 
 val cargoBuild by tasks.registering(Exec::class) {
     group = "rust"
@@ -181,7 +186,7 @@ val uniffiBindgen by tasks.registering(Exec::class) {
     commandLine = listOf(
         cargoBin, "run", "--quiet", "--bin", "uniffi-bindgen", "--",
         "generate",
-        "--library", "target/debug/libstrawcore.so",
+        "--library", "$cargoTargetDir/debug/libstrawcore.so",
         "--crate", "strawcore",
         "--language", "kotlin",
         "--no-format",