Since discord announced that they would be scanning ID a lot of alternatives have sprung up, chatto and Armada are both looking promising as alternatives, plus the chatto vibed marketing materials on their Dev chat gave me a laugh the other week!

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Scaled a day ago | parent [-]

I can recommend both Matrix and Discourse forum as excellent open source selfhostable alternatives.

	▲	sellmesoap a day ago \| parent [-]
		I like matrix, its like the new IRC for almost real time developer chat, I also do this via Discord but I'd prefer an open alternative. If you have experience running a matrix server do you find the data storage an issue? It sounded like if you federate and join the bigger channels you can balloon your storage pretty fast.