diff --git a/.gitignore b/.gitignore
index 7e71a9864..ecf01c18a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -53,3 +53,6 @@ signing.properties
 References/
 *.hprof
 android_sysvshm/build64/
+
+# local build artifacts (FEX/Proton wcp)
+dist/
diff --git a/UNIXLIBS_README.md b/UNIXLIBS_README.md
new file mode 100644
index 000000000..c43c0045c
--- /dev/null
+++ b/UNIXLIBS_README.md
@@ -0,0 +1,96 @@
+# FEX UnixLibs for WinNative — What It Is & How It Works
+
+A short guide to the new **UnixLibs** feature: what changed, what gets installed,
+and how the new `.so` files get loaded.
+
+---
+
+## The one-paragraph version
+
+FEX (the x86→ARM translator used by ARM64EC containers) always ran as **Windows
+DLLs living inside the container's C: drive**. Those DLLs are "boxed" inside
+Wine's Windows world, so they can't talk to the Android kernel directly.
+**UnixLibs** adds a small **native `.so`** that runs on the *Android side* and
+gives FEX a direct line to the kernel — unlocking hardware-assisted x86 memory
+ordering (TSO) and other speedups. Nothing about how you use containers changes;
+it just runs faster where the hardware supports it.
+
+---
+
+## How it works (simple)
+
+1. The FEX DLLs (`libwow64fex.dll` / `libarm64ecfex.dll`) stay in `system32` —
+   they're still the entry point Wine loads.
+2. On launch, each FEX DLL asks Wine: *"load my native helper by name."*
+3. Wine finds the matching **`.so`** (`libwow64fex.so` / `libarm64ecfex.so`) in
+   the running Wine/Proton's Unix library folder and loads it.
+4. FEX now has a bridge from the boxed Windows side out to the Android kernel and
+   uses it for the fast paths (see performance note at the bottom).
+
+The DLL and the `.so` are a **pair** — the DLL loads the `.so`; they work
+*together*, the `.so` does not replace the DLL.
+
+---
+
+## What's different from the old setup
+
+| Piece | Old | New (UnixLibs) |
+|---|---|---|
+| **Proton** | Wine couldn't load a `.so` helper by name, so FEX silently fell back to the slower in-DLL path. | Proton's `ntdll` now supports **load-unixlib-by-name**, so it can find and load the `.so`. |
+| **FEX version** | The FEX `.wcp` shipped **only** the two PE `.dll` files. | The FEX `.wcp` ships the `.dll` files **plus** the matching native **`.so`** files (built for Android/Bionic). |
+| **WinNative APK** | Only copied the FEX `.dll` into `system32`. | Adds a **"Use UnixLibs" toggle** and, when on, copies the `.so` into the active Proton's Unix lib folder so Wine can find it. |
+
+---
+
+## What gets installed now
+
+Three matching pieces are needed (all ARM64EC only):
+
+1. **New Proton** — e.g. `Proton-11-B5-Arm64EC-Steam-UnixLibs` (its `ntdll`
+   knows how to load the `.so`).
+2. **New FEX component** — e.g. `FEX-2607-UnixLibs`, which contains:
+   - `libwow64fex.dll`, `libarm64ecfex.dll` → copied into `system32` (as before)
+   - `libwow64fex.so`, `libarm64ecfex.so` → the new native helpers
+3. **New WinNative APK** — with the **Use UnixLibs** toggle and the wiring that
+   places the `.so` where Wine looks for it.
+
+Install the Proton and FEX components from **Components** like normal, pick them
+in the container/shortcut, and make sure **Use UnixLibs** is on (it turns on
+automatically when the selected FEX version includes `.so` files).
+
+---
+
+## How the `.so` files get loaded
+
+- When you launch a container, WinNative copies the FEX `.so` files into the
+  **active Proton's** `lib/wine/aarch64-unix/` folder (the exact place Wine
+  searches). This happens per-launch, so it follows whichever Proton you pick.
+- Wine's `ntdll` then loads the `.so` by name when FEX asks for it.
+- Turning the toggle **off** removes the `.so` again, so FEX goes back to the
+  plain DLL path.
+
+**How to confirm it worked:** enable FEX/emulator logs, launch a game, and look
+in the FEX log for:
+
+```
+FEX: Loaded FEXUnixLib
+```
+
+If you see that (once for each backend), the native helper is active. If it's
+missing, FEX is running the old DLL-only path.
+
+---
+
+## What you might feel (performance)
+
+FEX already translated x86 to native ARM either way — UnixLibs doesn't make
+translation "native," it gives FEX **kernel access**. The main win is
+**hardware TSO memory ordering**: FEX can drop the expensive software memory
+barriers it normally needs for correct x86 behavior and let the CPU enforce it
+instead — *fast and correct at the same time* (the same trick Apple's Rosetta
+uses). Expect the biggest gains in memory- and multithread-heavy games, plus
+smoother frame pacing.
+
+Caveat: this is **hardware/kernel dependent**. On chips/kernels that expose the
+memory-model toggle you'll feel it; on ones that don't, the `.so` still loads but
+that speedup isn't available — no gain, but no regression either.
diff --git a/app/src/main/feature/library/GameSettings.kt b/app/src/main/feature/library/GameSettings.kt
index 85aae8e63..73152df97 100644
--- a/app/src/main/feature/library/GameSettings.kt
+++ b/app/src/main/feature/library/GameSettings.kt
@@ -507,6 +507,8 @@ class GameSettingsStateHolder {
     val selectedFexcoreVersion = mutableIntStateOf(0)
     val fexcorePresetEntries = mutableStateOf<List<String>>(emptyList())
     val selectedFexcorePreset = mutableIntStateOf(0)
+    val fexcoreUnixLibsFlags = mutableStateOf<List<Boolean>>(emptyList())
+    val useUnixLibs = mutableStateOf(true)
 
     // Advanced - System
     val startupSelectionEntries = mutableStateOf<List<String>>(emptyList())
@@ -3554,6 +3556,18 @@ private fun AdvancedSection(
 
     // FEXCore — hidden when FEXCore isn't explicitly in either slot.
     if (state.showFexcoreFrame.value) {
+        val fexUnixCapable = state.fexcoreUnixLibsFlags.value
+            .getOrNull(state.selectedFexcoreVersion.intValue) ?: false
+        SettingGroup {
+            SettingSwitch(
+                label = stringResource(R.string.use_unix_libs),
+                checked = state.useUnixLibs.value && fexUnixCapable,
+                onCheckedChange = { state.useUnixLibs.value = it },
+                enabled = fexUnixCapable
+            )
+        }
+        Spacer(Modifier.height(SettingSectionGap))
+
         val fexcoreUsage = emulatorUsageLabel(state, setOf("fexcore"))
         EmulatorSectionHeader(stringResource(R.string.container_fexcore_config), fexcoreUsage)
         Spacer(Modifier.height(8.dp))
diff --git a/app/src/main/feature/settings/containers/ContainerSettingsComposeDialog.kt b/app/src/main/feature/settings/containers/ContainerSettingsComposeDialog.kt
index c6757926b..0192754bc 100644
--- a/app/src/main/feature/settings/containers/ContainerSettingsComposeDialog.kt
+++ b/app/src/main/feature/settings/containers/ContainerSettingsComposeDialog.kt
@@ -422,6 +422,7 @@ class ContainerSettingsComposeDialog @JvmOverloads constructor(
         }
 
         state.fullscreenStretched.value = c?.isFullscreenStretched() ?: false
+        state.useUnixLibs.value = c?.isUseUnixLibs() ?: true
 
         // Steam fields are shortcut-only in the UI; leave any existing steam
         // state on the container untouched — saveSettings() skips them.
@@ -799,6 +800,7 @@ class ContainerSettingsComposeDialog @JvmOverloads constructor(
             c.setWinComponents(wincomponents)
             c.setDrives(drivesString)
             c.setFullscreenStretched(state.fullscreenStretched.value)
+            c.setUseUnixLibs(state.useUnixLibs.value)
             c.setInputType(finalInputType)
             c.setExclusiveXInput(state.containerExclusiveInput.value)
             c.setStartupSelection(startupSelection)
@@ -839,6 +841,7 @@ class ContainerSettingsComposeDialog @JvmOverloads constructor(
                 data.put("wincomponents", wincomponents)
                 data.put("drives", drivesString)
                 data.put("fullscreenStretched", state.fullscreenStretched.value)
+                data.put("useUnixLibs", state.useUnixLibs.value)
                 data.put("inputType", finalInputType)
                 data.put("exclusiveXInput", state.containerExclusiveInput.value)
                 data.put("startupSelection", startupSelection.toInt())
@@ -989,6 +992,7 @@ class ContainerSettingsComposeDialog @JvmOverloads constructor(
             if (firstDash >= 0) items.add(entryName.substring(firstDash + 1))
         }
         state.fexcoreVersionEntries.value = items
+        state.fexcoreUnixLibsFlags.value = items.map { contentsManager.fexcoreVersionHasUnixLibs(it) }
         val saved = container?.getFEXCoreVersion() ?: ""
         selectByValue(items, saved, state.selectedFexcoreVersion)
     }
diff --git a/app/src/main/feature/shortcuts/ShortcutSettingsComposeDialog.kt b/app/src/main/feature/shortcuts/ShortcutSettingsComposeDialog.kt
index 0fa0f52ba..d685cf306 100644
--- a/app/src/main/feature/shortcuts/ShortcutSettingsComposeDialog.kt
+++ b/app/src/main/feature/shortcuts/ShortcutSettingsComposeDialog.kt
@@ -414,6 +414,10 @@ class ShortcutSettingsComposeDialog private constructor(
             if (container.isFullscreenStretched) "1" else "0"
         )
         state.fullscreenStretched.value = fullscreenStretched == "1"
+        state.useUnixLibs.value = getShortcutSetting(
+            "useUnixLibs",
+            if (container.isUseUnixLibs) "1" else "0"
+        ) == "1"
 
         // LC_ALL
         state.lcAll.value = getShortcutSetting("lc_all", container.getLC_ALL())
@@ -824,6 +828,7 @@ class ShortcutSettingsComposeDialog private constructor(
         }
 
         state.fexcoreVersionEntries.value = items
+        state.fexcoreUnixLibsFlags.value = items.map { contentsManager.fexcoreVersionHasUnixLibs(it) }
         val savedVersion = if (shouldUseShortcutOverrides(container))
             getShortcutSetting("fexcoreVersion", container.getFEXCoreVersion())
         else
@@ -1071,6 +1076,13 @@ class ShortcutSettingsComposeDialog private constructor(
                 if (container.isFullscreenStretched) "1" else "0"
             )
 
+            // Use UnixLibs
+            hasContainerOverride = hasContainerOverride or saveOverride(
+                "useUnixLibs",
+                if (state.useUnixLibs.value) "1" else "0",
+                if (container.isUseUnixLibs) "1" else "0"
+            )
+
             // Win components
             val wincomponents = buildWinComponentsString()
             hasContainerOverride =
@@ -2160,6 +2172,7 @@ class ShortcutSettingsComposeDialog private constructor(
 
         state.lcAll.value = container.getLC_ALL()
         state.fullscreenStretched.value = container.isFullscreenStretched
+        state.useUnixLibs.value = container.isUseUnixLibs
 
         val startupEntries = state.startupSelectionEntries.value
         state.selectedStartupSelection.intValue = container.getStartupSelection().toInt()
diff --git a/app/src/main/res/values-da/strings.xml b/app/src/main/res/values-da/strings.xml
index 232fde91a..4f146e6a8 100644
--- a/app/src/main/res/values-da/strings.xml
+++ b/app/src/main/res/values-da/strings.xml
@@ -505,6 +505,7 @@
     <string name="container_fexcore_config">FEXCore</string>
     <string name="container_fexcore_preset">FEXCore-forudindstilling</string>
     <string name="container_fexcore_version">FEXCore-version</string>
+    <string name="use_unix_libs">Brug UnixLibs</string>
 
     <!-- Container > Graphics Driver -->
     <string name="container_graphics_driver">Grafikdriver</string>
diff --git a/app/src/main/res/values-de/strings.xml b/app/src/main/res/values-de/strings.xml
index 54ef2714d..3db58b93d 100644
--- a/app/src/main/res/values-de/strings.xml
+++ b/app/src/main/res/values-de/strings.xml
@@ -505,6 +505,7 @@
     <string name="container_fexcore_config">FEXCore</string>
     <string name="container_fexcore_preset">FEXCore-Voreinstellung</string>
     <string name="container_fexcore_version">FEXCore-Version</string>
+    <string name="use_unix_libs">UnixLibs verwenden</string>
 
     <!-- Container > Graphics Driver -->
     <string name="container_graphics_driver">Grafiktreiber</string>
diff --git a/app/src/main/res/values-es/strings.xml b/app/src/main/res/values-es/strings.xml
index d5c56ec06..f173826f6 100644
--- a/app/src/main/res/values-es/strings.xml
+++ b/app/src/main/res/values-es/strings.xml
@@ -505,6 +505,7 @@
     <string name="container_fexcore_config">FEXCore</string>
     <string name="container_fexcore_preset">Preset de FEXCore</string>
     <string name="container_fexcore_version">Versión de FEXCore</string>
+    <string name="use_unix_libs">Usar UnixLibs</string>
 
     <!-- Container > Graphics Driver -->
     <string name="container_graphics_driver">Controlador gráfico</string>
diff --git a/app/src/main/res/values-fr/strings.xml b/app/src/main/res/values-fr/strings.xml
index 52d81280e..15d7a9801 100644
--- a/app/src/main/res/values-fr/strings.xml
+++ b/app/src/main/res/values-fr/strings.xml
@@ -505,6 +505,7 @@
     <string name="container_fexcore_config">FEXCore</string>
     <string name="container_fexcore_preset">Préréglage FEXCore</string>
     <string name="container_fexcore_version">Version de FEXCore</string>
+    <string name="use_unix_libs">Utiliser les UnixLibs</string>
 
     <!-- Container > Graphics Driver -->
     <string name="container_graphics_driver">Pilote graphique</string>
diff --git a/app/src/main/res/values-hi/strings.xml b/app/src/main/res/values-hi/strings.xml
index a285325bb..73340af82 100644
--- a/app/src/main/res/values-hi/strings.xml
+++ b/app/src/main/res/values-hi/strings.xml
@@ -559,6 +559,7 @@
     <string name="container_fexcore_config">FEXCore</string>
     <string name="container_fexcore_preset">FEXCore प्रीसेट</string>
     <string name="container_fexcore_version">FEXCore संस्करण</string>
+    <string name="use_unix_libs">UnixLibs का उपयोग करें</string>
     <string name="container_graphics_driver">ग्राफ़िक्स ड्राइवर</string>
     <string name="container_graphics_configuration">ग्राफ़िक्स ड्राइवर कॉन्फ़िगरेशन</string>
     <string name="container_graphics_version">ग्राफ़िक्स ड्राइवर संस्करण</string>
diff --git a/app/src/main/res/values-it/strings.xml b/app/src/main/res/values-it/strings.xml
index 21d6b2bc9..8ce77f6ba 100644
--- a/app/src/main/res/values-it/strings.xml
+++ b/app/src/main/res/values-it/strings.xml
@@ -505,6 +505,7 @@
     <string name="container_fexcore_config">FEXCore</string>
     <string name="container_fexcore_preset">Preset FEXCore</string>
     <string name="container_fexcore_version">Versione FEXCore</string>
+    <string name="use_unix_libs">Usa UnixLibs</string>
 
     <!-- Container > Graphics Driver -->
     <string name="container_graphics_driver">Driver grafico</string>
diff --git a/app/src/main/res/values-ko/strings.xml b/app/src/main/res/values-ko/strings.xml
index 1d82ebedf..d3e12a025 100644
--- a/app/src/main/res/values-ko/strings.xml
+++ b/app/src/main/res/values-ko/strings.xml
@@ -505,6 +505,7 @@
     <string name="container_fexcore_config">FEXCore</string>
     <string name="container_fexcore_preset">FEXCore 프리셋</string>
     <string name="container_fexcore_version">FEXCore 버전</string>
+    <string name="use_unix_libs">UnixLibs 사용</string>
 
     <!-- Container > Graphics Driver -->
     <string name="container_graphics_driver">그래픽 드라이버</string>
diff --git a/app/src/main/res/values-pl/strings.xml b/app/src/main/res/values-pl/strings.xml
index cb133e128..98613951f 100644
--- a/app/src/main/res/values-pl/strings.xml
+++ b/app/src/main/res/values-pl/strings.xml
@@ -509,6 +509,7 @@
     <string name="container_fexcore_config">FEXCore</string>
     <string name="container_fexcore_preset">Preset FEXCore</string>
     <string name="container_fexcore_version">Wersja FEXCore</string>
+    <string name="use_unix_libs">Użyj UnixLibs</string>
 
     <!-- Container > Graphics Driver -->
     <string name="container_graphics_driver">Sterownik grafiki</string>
diff --git a/app/src/main/res/values-pt-rBR/strings.xml b/app/src/main/res/values-pt-rBR/strings.xml
index 996104f88..7bd36eee2 100644
--- a/app/src/main/res/values-pt-rBR/strings.xml
+++ b/app/src/main/res/values-pt-rBR/strings.xml
@@ -505,6 +505,7 @@
     <string name="container_fexcore_config">FEXCore</string>
     <string name="container_fexcore_preset">Predefinicao FEXCore</string>
     <string name="container_fexcore_version">Versao do FEXCore</string>
+    <string name="use_unix_libs">Usar UnixLibs</string>
 
     <!-- Container > Graphics Driver -->
     <string name="container_graphics_driver">Driver Grafico</string>
diff --git a/app/src/main/res/values-ro/strings.xml b/app/src/main/res/values-ro/strings.xml
index 0ec0c94c8..8411c5bc1 100644
--- a/app/src/main/res/values-ro/strings.xml
+++ b/app/src/main/res/values-ro/strings.xml
@@ -505,6 +505,7 @@
     <string name="container_fexcore_config">FEXCore</string>
     <string name="container_fexcore_preset">Preset FEXCore</string>
     <string name="container_fexcore_version">Versiune FEXCore</string>
+    <string name="use_unix_libs">Folosește UnixLibs</string>
 
     <!-- Container > Graphics Driver -->
     <string name="container_graphics_driver">Driver grafic</string>
diff --git a/app/src/main/res/values-ru/strings.xml b/app/src/main/res/values-ru/strings.xml
index f64eb6a8a..392f3549a 100644
--- a/app/src/main/res/values-ru/strings.xml
+++ b/app/src/main/res/values-ru/strings.xml
@@ -513,6 +513,7 @@
     <string name="container_fexcore_config">FEXCore</string>
     <string name="container_fexcore_preset">Пресет FEXCore</string>
     <string name="container_fexcore_version">Версия FEXCore</string>
+    <string name="use_unix_libs">Использовать UnixLibs</string>
     <!-- Container > Graphics Driver -->
     <string name="container_graphics_driver">Графический драйвер</string>
     <string name="container_graphics_configuration">Конфигурация графического драйвера</string>
diff --git a/app/src/main/res/values-uk/strings.xml b/app/src/main/res/values-uk/strings.xml
index 281acaeb0..45c92c010 100644
--- a/app/src/main/res/values-uk/strings.xml
+++ b/app/src/main/res/values-uk/strings.xml
@@ -509,6 +509,7 @@
     <string name="container_fexcore_config">FEXCore</string>
     <string name="container_fexcore_preset">Пресет FEXCore</string>
     <string name="container_fexcore_version">Версія FEXCore</string>
+    <string name="use_unix_libs">Використовувати UnixLibs</string>
 
     <!-- Container > Graphics Driver -->
     <string name="container_graphics_driver">Графічний драйвер</string>
diff --git a/app/src/main/res/values-zh-rCN/strings.xml b/app/src/main/res/values-zh-rCN/strings.xml
index 682ac8177..20e4aec3e 100644
--- a/app/src/main/res/values-zh-rCN/strings.xml
+++ b/app/src/main/res/values-zh-rCN/strings.xml
@@ -505,6 +505,7 @@
     <string name="container_fexcore_config">FEXCore</string>
     <string name="container_fexcore_preset">FEXCore 预设</string>
     <string name="container_fexcore_version">FEXCore 版本</string>
+    <string name="use_unix_libs">使用 UnixLibs</string>
 
     <!-- Container > Graphics Driver -->
     <string name="container_graphics_driver">图形驱动</string>
diff --git a/app/src/main/res/values-zh-rTW/strings.xml b/app/src/main/res/values-zh-rTW/strings.xml
index 1dc93cd8f..90001b4e8 100644
--- a/app/src/main/res/values-zh-rTW/strings.xml
+++ b/app/src/main/res/values-zh-rTW/strings.xml
@@ -505,6 +505,7 @@
     <string name="container_fexcore_config">FEXCore</string>
     <string name="container_fexcore_preset">FEXCore 預設</string>
     <string name="container_fexcore_version">FEXCore 版本</string>
+    <string name="use_unix_libs">使用 UnixLibs</string>
 
     <!-- Container > Graphics Driver -->
     <string name="container_graphics_driver">圖形驅動程式</string>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 540cc9451..bf004118b 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -585,6 +585,7 @@
     <string name="container_fexcore_config">FEXCore</string>
     <string name="container_fexcore_preset">FEXCore Preset</string>
     <string name="container_fexcore_version">FEXCore Version</string>
+    <string name="use_unix_libs">Use UnixLibs</string>
 
     <!-- Container > Graphics Driver -->
     <string name="container_graphics_driver">Graphics Driver</string>
diff --git a/app/src/main/runtime/container/Container.java b/app/src/main/runtime/container/Container.java
index 96e6812b1..8f259419a 100644
--- a/app/src/main/runtime/container/Container.java
+++ b/app/src/main/runtime/container/Container.java
@@ -51,6 +51,7 @@ public class Container {
     private String drives = DEFAULT_DRIVES;
     private String wineVersion = WineInfo.MAIN_WINE_VERSION.identifier();
     private boolean fullscreenStretched;
+    private boolean useUnixLibs = true;
     private byte startupSelection = STARTUP_SELECTION_ESSENTIAL;
     private String cpuList;
     private String cpuListWoW64;
@@ -207,6 +208,10 @@ public void setLC_ALL(String lc_all) {
 
     public void setFullscreenStretched(boolean fullscreenStretched) { this.fullscreenStretched = fullscreenStretched; }
 
+    public boolean isUseUnixLibs() { return useUnixLibs; }
+
+    public void setUseUnixLibs(boolean useUnixLibs) { this.useUnixLibs = useUnixLibs; }
+
     public byte getStartupSelection() {
         return startupSelection;
     }
@@ -424,6 +429,7 @@ public void saveData() {
             data.put("wincomponents", wincomponents);
             data.put("drives", drives);
             data.put("fullscreenStretched", fullscreenStretched);
+            data.put("useUnixLibs", useUnixLibs);
             data.put("inputType", inputType);
             data.put("exclusiveXInput", exclusiveXInput);
             data.put("startupSelection", startupSelection);
@@ -508,6 +514,9 @@ public void loadData(JSONObject data) throws JSONException {
                 case "fullscreenStretched" :
                     setFullscreenStretched(data.getBoolean(key));
                     break;
+                case "useUnixLibs" :
+                    setUseUnixLibs(data.getBoolean(key));
+                    break;
                 case "inputType" :
                     setInputType(data.getInt(key));
                     break;
diff --git a/app/src/main/runtime/content/ContentsManager.java b/app/src/main/runtime/content/ContentsManager.java
index 2c85adea3..c9d22b057 100644
--- a/app/src/main/runtime/content/ContentsManager.java
+++ b/app/src/main/runtime/content/ContentsManager.java
@@ -17,6 +17,7 @@
 import java.util.LinkedHashMap;
 import java.util.LinkedList;
 import java.util.List;
+import java.util.Locale;
 import java.util.Map;
 import org.json.JSONArray;
 import org.json.JSONException;
@@ -750,6 +751,69 @@ public ContentProfile getProfileByEntryName(String entryName) {
     return null;
   }
 
+  public boolean profileHasUnixLibs(ContentProfile profile) {
+    if (profile == null) return false;
+    return dirContainsSharedObject(getInstallDir(context, profile));
+  }
+
+  public boolean fexcoreVersionHasUnixLibs(String fexcoreVersion) {
+    if (fexcoreVersion == null || fexcoreVersion.isEmpty()) return false;
+    return profileHasUnixLibs(getProfileByEntryName("fexcore-" + fexcoreVersion));
+  }
+
+  private static boolean dirContainsSharedObject(File dir) {
+    if (dir == null) return false;
+    File[] files = dir.listFiles();
+    if (files == null) return false;
+    for (File file : files) {
+      if (file.isDirectory()) {
+        if (dirContainsSharedObject(file)) return true;
+      } else if (isSharedObject(file.getName())) {
+        return true;
+      }
+    }
+    return false;
+  }
+
+  private static boolean isSharedObject(String name) {
+    String lower = name.toLowerCase(Locale.ROOT);
+    return lower.endsWith(".so") || lower.contains(".so.");
+  }
+
+  public void removeAppliedUnixLibs(ContentProfile profile) {
+    if (profile == null || profile.fileList == null) return;
+    for (ContentProfile.ContentFile contentFile : profile.fileList) {
+      if (!isSharedObject(new File(contentFile.target).getName())) continue;
+      File targetFile = new File(getPathFromTemplate(contentFile.target));
+      if (targetFile.exists() && targetFile.delete()) {
+        Log.i("ContentsManager", "UnixLibs: removed " + targetFile.getName());
+      }
+    }
+  }
+
+  public void copyUnixLibsToDir(ContentProfile profile, File destDir) {
+    if (profile == null || profile.fileList == null) return;
+    for (ContentProfile.ContentFile contentFile : profile.fileList) {
+      String name = new File(contentFile.target).getName();
+      if (!isSharedObject(name)) continue;
+      File sourceFile = new File(getInstallDir(context, profile), contentFile.source);
+      if (!sourceFile.exists()) continue;
+      File destFile = new File(destDir, name);
+      FileUtils.copy(sourceFile, destFile);
+      FileUtils.chmod(destFile, 0771);
+    }
+  }
+
+  public void deleteUnixLibsFromDir(ContentProfile profile, File destDir) {
+    if (profile == null || profile.fileList == null) return;
+    for (ContentProfile.ContentFile contentFile : profile.fileList) {
+      String name = new File(contentFile.target).getName();
+      if (!isSharedObject(name)) continue;
+      File destFile = new File(destDir, name);
+      if (destFile.exists()) destFile.delete();
+    }
+  }
+
   public boolean applyContent(ContentProfile profile) {
     if (profile.type != ContentProfile.ContentType.CONTENT_TYPE_WINE
         && profile.type != ContentProfile.ContentType.CONTENT_TYPE_PROTON) {
@@ -760,7 +824,8 @@ public boolean applyContent(ContentProfile profile) {
         targetFile.delete();
         FileUtils.copy(sourceFile, targetFile);
 
-        if (profile.type == ContentProfile.ContentType.CONTENT_TYPE_BOX64) {
+        if (profile.type == ContentProfile.ContentType.CONTENT_TYPE_BOX64
+            || isSharedObject(targetFile.getName())) {
           FileUtils.chmod(targetFile, 0771);
         }
       }
diff --git a/app/src/main/runtime/display/environment/components/GuestProgramLauncherComponent.java b/app/src/main/runtime/display/environment/components/GuestProgramLauncherComponent.java
index 58ac5f6ae..9a79fffe9 100644
--- a/app/src/main/runtime/display/environment/components/GuestProgramLauncherComponent.java
+++ b/app/src/main/runtime/display/environment/components/GuestProgramLauncherComponent.java
@@ -55,6 +55,7 @@ public class GuestProgramLauncherComponent extends EnvironmentComponent {
   private final Shortcut shortcut;
   private File workingDir;
   private Runnable preUnpackCallback;
+  private boolean fexUnixLibsActive = false;
 
   public static File ensureImageFsNativeLibrary(
       Context context, ImageFs imageFs, String libraryName) {
@@ -371,11 +372,13 @@ private void extractEmulatorsDlls() {
     if (wowbox64Version == null) wowbox64Version = "";
     if (fexcoreVersion == null) fexcoreVersion = "";
 
+    boolean unixLibsPref = container.isUseUnixLibs();
     if (shortcut != null) {
       emulator = shortcut.getSettingExtra("emulator", emulator);
       emulator64 = shortcut.getSettingExtra("emulator64", emulator64);
       wowbox64Version = shortcut.getSettingExtra("box64Version", wowbox64Version);
       fexcoreVersion = shortcut.getSettingExtra("fexcoreVersion", fexcoreVersion);
+      unixLibsPref = "1".equals(shortcut.getSettingExtra("useUnixLibs", unixLibsPref ? "1" : "0"));
     }
 
     boolean usesWowbox64 = emulator.equalsIgnoreCase("wowbox64");
@@ -384,6 +387,9 @@ private void extractEmulatorsDlls() {
             || emulator64.equalsIgnoreCase("fexcore")
             || !usesWowbox64;
 
+    fexUnixLibsActive =
+        usesFexcore && unixLibsPref && contentsManager.fexcoreVersionHasUnixLibs(fexcoreVersion);
+
     Log.i(
         "GuestProgramLauncherComponent",
         "Launch runtime selected: emulator="
@@ -439,30 +445,44 @@ private void extractEmulatorsDlls() {
           "WowBox64 already loaded for launch: version=" + wowbox64Version);
     }
 
-    if (usesFexcore
-        && (fexcoreDllsMissing || !fexcoreVersion.equals(container.getExtra("fexcoreVersion")))) {
-      if (fexcoreVersion.isEmpty()) {
-        Log.w("GuestProgramLauncherComponent", "No FEXCore version selected; skipping content extraction");
-      } else {
-        ContentProfile profile = contentsManager.getProfileByEntryName("fexcore-" + fexcoreVersion);
-        if (profile != null) {
+    if (usesFexcore) {
+      ContentProfile profile =
+          fexcoreVersion.isEmpty() ? null : contentsManager.getProfileByEntryName("fexcore-" + fexcoreVersion);
+      String wantMode = fexUnixLibsActive ? "unixlibs" : "dll";
+      boolean modeChanged = !wantMode.equals(container.getExtra("fexcoreMode"));
+      boolean versionChanged = !fexcoreVersion.equals(container.getExtra("fexcoreVersion"));
+      boolean needsExtraction =
+          versionChanged || modeChanged || (!fexUnixLibsActive && fexcoreDllsMissing);
+
+      if (needsExtraction) {
+        if (fexcoreVersion.isEmpty()) {
+          Log.w("GuestProgramLauncherComponent", "No FEXCore version selected; skipping content extraction");
+        } else if (profile != null) {
           Log.i(
               "GuestProgramLauncherComponent",
-              "Loading FEXCore content profile: version=" + fexcoreVersion);
+              "Loading FEXCore content profile: version=" + fexcoreVersion + " mode=" + wantMode);
           contentsManager.applyContent(profile);
+          if (!fexUnixLibsActive) contentsManager.removeAppliedUnixLibs(profile);
         } else {
           Log.w(
               "GuestProgramLauncherComponent",
               "FEXCore content profile not installed; no bundled FEXCore archive will be loaded: version="
                   + fexcoreVersion);
         }
+        container.putExtra("fexcoreVersion", fexcoreVersion);
+        container.putExtra("fexcoreMode", wantMode);
+        containerDataChanged = true;
+      } else {
+        Log.i(
+            "GuestProgramLauncherComponent",
+            "FEXCore already loaded for launch: version=" + fexcoreVersion + " mode=" + wantMode);
+      }
+
+      if (profile != null) {
+        File wineUnixDir = new File(environment.getImageFs().getWinePath(), "lib/wine/aarch64-unix");
+        if (fexUnixLibsActive) contentsManager.copyUnixLibsToDir(profile, wineUnixDir);
+        else contentsManager.deleteUnixLibsFromDir(profile, wineUnixDir);
       }
-      container.putExtra("fexcoreVersion", fexcoreVersion);
-      containerDataChanged = true;
-    } else if (usesFexcore) {
-      Log.i(
-          "GuestProgramLauncherComponent",
-          "FEXCore already loaded for launch: version=" + fexcoreVersion);
     }
     if (containerDataChanged) container.saveData();
   }