Start refactor how qemu-system commands are built

utils/int.go

@@ -0,0 +1,15 @@
+package utils
+
+import (
+	"strconv"
+
+	"golang.org/x/exp/constraints"
+)
+
+func IntToStr[T constraints.Signed](v T) string {
+	return strconv.FormatInt(int64(v), 10)
+}
+
+func UintToStr[T constraints.Unsigned](v T) string {
+	return strconv.FormatUint(uint64(v), 10)
+}