Thanks for checking this out! Ragnarok is indeed listed as a vibes influence. :)
As of this reply, my priority is working on another game (Wayfarer) with what little time I have outside of work/family responsibilities.
That said, Metal & Magic is my preferred way to play d20-style games, even above my other releases like Ventureborn. M&M is similar enough to its many inspirations (e.g. Mork Borg, Synthetic Dream Machine/SEACAT, Songbirds) that it can be swapped in quickly, and I've used it to play some DIY fantasy stuff, so it mostly works for me? I can potentially see myself coming back to work on M&M when I'm done futzing with statless games and d6 dice pools, so never say never! (Reading your comment, then re-reading my own writing, reinvigorated some of my own interest!)