Forgot the actual interface from previous commits, here it is

include/astaroth_fortran.h

@@ -0,0 +1,24 @@
+#pragma once
+#include "astaroth.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * Utils
+ */
+void acupdatebuiltinparams_(AcMeshInfo* info);
+
+/**
+ * Device
+ */
+void acdevicecreate_(const int* id, const AcMeshInfo* info, Device* handle);
+
+void acdevicedestroy_(Device* device);
+
+void acdeviceprintinfo_(const Device* device);
+
+#ifdef __cplusplus
+} // extern "C"
+#endif