Holders are paid in SOL by default and do nothing to receive it. A holder who wants native XMR instead signs one message with a Monero subaddress.
After a harvest unlocks, the holders' half is posted as one XMR to SOL intent. The SOL that comes back is dropped to every worker of that rental by share, in one transaction per hundred workers, with the drop signatures receipted. There is nothing to claim and nothing to register.
This is the rail every worker is on unless they choose the other one. The worker roll shows which rail each worker is on by a single word.
A holder who prefers native Monero connects a wallet below and signs a plain text message containing a Monero subaddress. Nothing is sent, no transaction, no fee. From the next harvest on, that worker's share is paid native XMR from the tunnel wallet straight to the subaddress, and it never touches Solana.
The site stores only the hash of the subaddress in its public table. The subaddress itself is held in a private table the public cannot read. The worker roll shows the word stealth and nothing else.