docs: add Mountify meta module (CONFIG_OVERLAY_FS=y, CONFIG_TMPFS_XATTR=y)

README.md

@@ -37,6 +37,7 @@ By flashing this kernel, **YOU** are choosing to make these modifications. If so
 - [KernelSU-Next](docs/kernelsu-next.md) / [KernelSU (Classic)](docs/kernelsu-classic.md) / [ReSukiSU](docs/resukisu.md) - root implementations
 - [SUSFS](docs/susfs.md) - root hiding
 - [NoMount](docs/nomount.md) - mount metamodule
+- [Mountify](docs/mountify.md) - OverlayFS global mounts (`CONFIG_OVERLAY_FS=y`, `CONFIG_TMPFS_XATTR=y`)
 - [Baseband Guard](docs/bbg.md) - partition protection
 - [Networking](docs/networking.md) - WireGuard, BBR, IPSet, CIFS
 - [TMPFS](docs/tmpfs.md) - xattr / POSIX ACLs

docs/index.md

@@ -23,6 +23,7 @@ Per-feature documentation for the GKI2 kernels built from this repository.
 | Module | Description | Source |
 |--------|-------------|--------|
 | NoMount | Metamodule providing mount-related functionality alongside root implementations. | [maxsteeel/nomount](https://github.com/maxsteeel/nomount) |
+| Mountify | Globally mounted modules via OverlayFS - `CONFIG_OVERLAY_FS=y` required, `CONFIG_TMPFS_XATTR=y` highly encouraged. | [backslashxx/mountify](https://github.com/backslashxx/mountify) |
 
 ## Security
 

docs/mountify.md

@@ -0,0 +1,25 @@
+# Mountify
+
+Globally mounted modules via OverlayFS - metamodule enabling `CONFIG_OVERLAY_FS=y` is required.
+
+## Source
+
+- **Upstream:** [backslashxx/mountify](https://github.com/backslashxx/mountify)
+
+## Description
+
+Mountify is a metamodule that globally mounts modules via OverlayFS. It acts as a KernelSU metamodule and also works on APatch and Magisk.
+
+- `CONFIG_OVERLAY_FS=y` is **required**
+- `CONFIG_TMPFS_XATTR=y` is **highly encouraged** (in the source / available in kernel config)
+
+It overlays `/mnt/vendor/fake_folder_name/system/bin` to `/system/bin` and other folders, mimicking an OEM mount.
+
+## Build Integration
+
+Mountify is documented as a meta module. Kernel config requirements are noted above - ensure `CONFIG_OVERLAY_FS=y` and `CONFIG_TMPFS_XATTR=y` are enabled in the kernel source.
+
+## Related
+
+- [nomount.md](nomount.md) - mount metamodule
+- [index.md](index.md) - full feature index