I am not the creator, funnily that is/was one of the Lemmy creators: Nutomic :)
I am a syncthing co-maintainer that kept the android app on life support since a while.

Oh don’t worry to much, mine too: If there wasn’t an alternative for syncthing on android, I might have kept it on lifesupport :)

Technically that wasn’t the initial entrypoint, paraphrasing from https://mastodon.social/@AndresFreundTec/112180406142695845 :

It started with ssh using unreasonably much cpu which interfered with benchmarks. Then profiling showed that cpu time being spent in lzma, without being attributable to anything. And he remembered earlier valgrind issues. These valgrind issues only came up because he set some build flag he doesn’t even remember anymore why it is set. On top he ran all of this on debian unstable to catch (unrelated) issues early. Any of these factors missing, he wouldn’t have caught it. All of this is so nuts.