diff --git a/Cargo.lock b/Cargo.lock
index 5cc1222..c04dc24 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2448,6 +2448,8 @@
  "bevy",
  "bevy_egui",
  "crossbeam",
+ "memmap2",
+ "thiserror 2.0.18",
 ]
 
 [[package]]
diff --git a/engine-core/Cargo.toml b/engine-core/Cargo.toml
index 70e02da..29c8007 100644
--- a/engine-core/Cargo.toml
+++ b/engine-core/Cargo.toml
@@ -6,6 +6,8 @@
 [dependencies]
 bevy_egui = "0.39.1"
 crossbeam = { version = "0.8.4", features = ["crossbeam-channel"] }
+memmap2 = "0.9.10"
+thiserror = "2.0.18"
 
 [dependencies.bevy]
 version = "0.18.1"
diff --git a/engine-core/src/ephemeral_pool.rs b/engine-core/src/ephemeral_pool.rs
new file mode 100644
index 0000000..59d9000
--- /dev/null
+++ b/engine-core/src/ephemeral_pool.rs
@@ -0,0 +1,41 @@
+use std::{alloc::Allocator, io};
+
+use memmap2::{MmapMut, MmapRaw};
+use thiserror::Error;
+
+#[derive(Error, Debug)]
+enum Error {
+    #[error(transparent)]
+    Io(#[from] io::Error),
+}
+
+type Result<T, E = Error> = std::result::Result<T, E>;
+
+struct EphemralPoolAllocator {
+    raw_pool: memmap2::MmapRaw,
+}
+
+struct EphemralPoolAllocatorUnit {
+    dealloc_callback: Box<dyn FnOnce()>,
+}
+
+unsafe impl Allocator for EphemralPoolAllocatorUnit {
+    fn allocate(
+        &self,
+        layout: std::alloc::Layout,
+    ) -> Result<std::ptr::NonNull<[u8]>, std::alloc::AllocError> {
+        todo!()
+    }
+
+    unsafe fn deallocate(&self, ptr: std::ptr::NonNull<u8>, layout: std::alloc::Layout) {
+        todo!()
+    }
+}
+
+impl EphemralPoolAllocator {
+    fn new(size: usize) -> Result<Self> {
+        Ok(Self {
+            raw_pool: MmapMut::map_anon(size)?.into(),
+        })
+    }
+}
diff --git a/engine-core/src/ephemral_pool.rs b/engine-core/src/ephemral_pool.rs
deleted file mode 100644
index e69de29..0000000
--- a/engine-core/src/ephemral_pool.rs
+++ /dev/null
diff --git a/engine-core/src/lib.rs b/engine-core/src/lib.rs
index 5e02785..43665ca 100644
--- a/engine-core/src/lib.rs
+++ b/engine-core/src/lib.rs
@@ -22,6 +22,7 @@
 
 use crate::debug::{DebugLogLayer, DebugPlugin};
 pub mod debug;
+pub mod ephemeral_pool;
 
 pub static EXTERNAL_SYSTEMS_CMDS: OnceLock<
     crossbeam::channel::Sender<Box<dyn Send + Sync + FnOnce(Commands) -> Result>>,