Shoestring budget Mastering online:
https://www.landr.com/en
I've used it for demos -free runs, and I can hear it work the dynamics (mostly loudness). I might use it for small budget releases, why not. As good as any DIY 'preset' mastering software. Of course, skilled humanoids will provide better results. Offer to do gardening in exchange for real mastering [emoji28]
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