[zdunn]

The repos they linked are just for the clients. I think the server software would be way more interesting, but it's also their secret sauce so it unlikely they'll open source that.

I'm with you that allowing the clients to connect to a different sync server (gpodder, etc) would be a great feature. Though, again, I don't see that happening because it would cut into their subscription service.

[mellosouls]

Hmmm, if that's the case, then except for those who don't mind being locked in, its not clear what the motivation is to contribute.

Though I suppose if there is enough benefit to the free product (I'm not that familiar with it) - and confidence it will remain free - that might be a draw.

Perhaps there is also potential for it to be forked for a genuinely open service - I'm just a bit sceptical about "open source" that doesn't keep the implied convention to be fully independent, but perhaps that's unfair or unrealistic here.