--- a/util/startup.lua	Wed Oct 19 16:25:05 2022 +0200
+++ b/util/startup.lua	Thu Oct 20 16:50:12 2022 +0200
@@ -280,16 +280,7 @@
 
 	-- COMPAT Lua < 5.3
 	if not math.type then
-		-- luacheck: ignore 122/math
-		function math.type(n)
-			if type(n) == "number" then
-				if n % 1 == 0 and (n + 1 ~= n and n - 1 ~= n) then
-					return "integer"
-				else
-					return "float"
-				end
-			end
-		end
+		require "util.mathcompat"
 	end
 end