I am not a BTCPay customer today, and I anticipate a feature request that may benefit BTCPay customers by reducing the custodial risk nostr:npub1j8y6tcdfw3q3f3h794s6un0gyc5742s0k5h5s2yqj0r70cpklqeqjavrvg :

If custodial account reaches (a user set, non trivial amount of) X sats, automagically transfer from my custodial to my non-custodial wallet.