Hey,
in lieu of a better place on the internet, I just wanted to document that the i2s overlay found here: https://gist.github.com/zuigon/65bfb73bb8a3f971774f80d3e2954adb works flawlessly with Armbian 23.08.0-trunk Bookworm with bleeding edge Linux 6.4.2-sunxi.
after executing the script my PCM 5102 DAC works like a charm.