Merchants can run it as a custodial setup simply by installing lightning.pub and connecting it as backend for ShockWallet.app.
A correction here. When you run it as a Lightning Pub, is in fact a full LND node in neutrino mode on your OWN hardware ! Can be whatever PC, now available on Umbrel and Start9 as standalone node software. That means self-custodial.
ShockWallet, on the other side, yes, it can be used custodial (using the bootstrap node from ShockNetwork) or connecting to your own LN Pub, or both. So if you want only to test it as a merchant, you do not need to run Lightning Pub, just using ShockWallet is enough.
A correction here.
When you run it as a Lightning Pub, is in fact a full LND node in neutrino mode on your OWN hardware ! Can be whatever PC, now available on Umbrel and Start9 as standalone node software. That means self-custodial.
ShockWallet, on the other side, yes, it can be used custodial (using the bootstrap node from ShockNetwork) or connecting to your own LN Pub, or both.
So if you want only to test it as a merchant, you do not need to run Lightning Pub, just using ShockWallet is enough.