diff --git a/hbrt/vm.go b/hbrt/vm.go
index 01b32b8..b4ac4dc 100644
--- a/hbrt/vm.go
+++ b/hbrt/vm.go
@@ -60,6 +60,23 @@ func RegisterDynamicFunc(name string, fn func(*Thread)) {
 	libRegistryMu.Unlock()
 }
 
+// LibRegistrySnapshotAndDrain returns the registered lib modules and dynamic
+// functions and clears the global registry. Use to install the SAME symbol set
+// into multiple VMs (a VM pool): snapshot once, then RegisterModule /
+// RegisterSymbol into each VM. Modules hold only function pointers + metadata
+// (per-VM mutable state — statics/threads/memvars — lives on the VM), so the
+// same *Module is safe to share across VMs. Draining prevents VM.Run from
+// re-registering libModules into whichever VM happens to run first.
+func LibRegistrySnapshotAndDrain() ([]*Module, []Symbol) {
+	libRegistryMu.Lock()
+	defer libRegistryMu.Unlock()
+	mods := libModules
+	dyns := dynamicFuncs
+	libModules = nil
+	dynamicFuncs = nil
+	return mods, dyns
+}
+
 // RegisterLibModules registers any pending lib modules and dynamic functions.
 func (vm *VM) RegisterLibModules() {
 	libRegistryMu.Lock()