diff --git a/code/__DEFINES/_auxtools.dm b/code/__DEFINES/_auxtools.dm
new file mode 100644
index 0000000000..ab07becbd9
--- /dev/null
+++ b/code/__DEFINES/_auxtools.dm
@@ -0,0 +1,9 @@
+#define AUXMOS (world.system_type == MS_WINDOWS ? "auxmos.dll" : __detect_auxmos())
+
+/proc/__detect_auxmos()
+	if (fexists("./libauxmos.so"))
+		return "./libauxmos.so"
+	else if (fexists("[world.GetConfig("env", "HOME")]/.byond/bin/libauxmos.so"))
+		return "[world.GetConfig("env", "HOME")]/.byond/bin/libauxmos.so"
+	else
+		CRASH("Could not find libauxmos.so")
diff --git a/code/__DEFINES/_extools.dm b/code/__DEFINES/_extools.dm
deleted file mode 100644
index 281eabf374..0000000000
--- a/code/__DEFINES/_extools.dm
+++ /dev/null
@@ -1,2 +0,0 @@
-#define EXTOOLS (world.system_type == MS_WINDOWS ? "byond-extools.dll" : "libbyond-extools.so")
-#define AUXMOS (world.system_type == MS_WINDOWS ? "auxmos.dll" : "libauxmos.so")