--- Makefile.orig	2021-12-21 14:46:27 UTC
+++ Makefile
@@ -61,7 +61,7 @@ lint:
 
 ## Binaries
 
-LUA_VERSION=5.4.3
+LUA_VERSION ?= 5.4.3
 LUA_DIR ?= $(PWD)/lua-$(LUA_VERSION)
 NATIVE_LUA_LIB ?= $(LUA_DIR)/src/liblua-native.a
 LUA_INCLUDE_DIR ?= $(LUA_DIR)/src
