I did this a few years ago and got pretty far with a prototype. My idea was to get it to the point of being useful enough to call, text and allow me to leave my iPhone behind when I’m out doing stuff. Then I moved to Asia and we use LINE extensively for everything and there’s no (legit) way to use their APIs.

NooneAtAll3 2 days ago | parent [-]

what's LINE?

	▲	ProtoAES256 2 days ago \| parent \| next [-]
		LINE is a communication software that is predominantly used in Japan, Taiwan, Indonesia(maybe others? South Korea?). It is clunky, buggy, files expire fast, can't upload for a lot of extensions, only login-able on 1+1 devices (phone+computer). And people still use it, also there is no avoiding it if you want to get anything official done around these parts. I do see youngsters using Instagram and Threads, and a bit of Telegram sprinkled here and there but that's it. You want to get the job done, you use LINE. It's THE communication app.
	▲	quakeguy 2 days ago \| parent \| prev [-]
		An App i suppose. https://www.line.me/en/