Some time ago, in this forum, the user Admin explained how to clean NT7 DLLs (back then, NT8 didn't exist yet). After some study, I managed to learn how to do it, but without his help, I would never have succeeded on my own. Wanting to return the favor, I cleaned many DLLs myself.
Today, however, NT8 DLL protections are much more serious. I also sought help, but I couldn't find anyone willing to point me in the right direction. Unfortunately, as I'm no longer young and tire easily from being at the PC, I didn't continue trying to figure out how to solve the problem.
It's a bit like going mushroom hunting. There are many books and videos that explain how to do it, but when you go into the woods, you can't find a single one. And those who do find them never reveal their secret.
update:
I think it's important to point out that many of the indicators for NT are junk. So, there's no point wasting time on reversal engineering to clean them up. A demonstrably superior method is to use the free tier of the TradingView platform and leverage artificial intelligence for script development; the result will be a significantly more robust and professional tool. I encourage you to test this approach and see the difference in quality.
Don't forget that AI can create you an indicator or strategy for NT8 too