Disappointing tbh. Basically necessitates a fork right off the get go. Self custody option + silent payments at a minimum

hard to do easy lightning ux privately, and lightning is well suited for this use case

Shoulda integrated with phoenix or something, spark is 👎👎

That's an understatement if there ever was one. Spark logs IP addresses and can freeze user funds for any reason whatsoever. Their claims of unilateral exit are a lie.