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Emulation on android
(lemmy.fmhy.ml)
A community for discussing emulation and preservation of retro games. This community is intended for discussing the art of emulation, the tooling involved and retro gaming in general; it is not intended as a dump of ROM files.
You should be able to find that info on the emulation wiki
https://emulation.gametechwiki.com/index.php/Gambatte
I doubt it would have retro achievements support. It also seems to only list Linux, Windows, and Mac support