This has been covered a few times. It is often the adjusting of the spider's tabs with a big wrench that can make the corrections. However, these days, I find it easier to embrace the non-indexing feature of my front derailleurs and trim when necessary.
But...I am curious, how many millimeters out of plane do folks tolerate? As much as I might want to remove that annoying 1mm runout, it is a lot of-- remove, adjust, reassemble, test, remove,...
A hammer/mallet? I might give it a try.
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I don't do: disks, tubeless, e-shifting, or bead head nymphs.