Good question. For Lightning liquidity management, NWC (Nostr Wallet Connect) is worth looking into if you have not already - it lets any Nostr-compatible app connect to your wallet without giving up custody.
One angle you might not have considered: Lightning is becoming the native payment layer for AI agents too. Protocols like L402 let software pay for APIs per-request via Lightning invoices. If you are already running Lightning infrastructure, you are positioned for a wave of machine-to-machine payments that is just starting.
We have been building tools that connect AI agents (like Claude) directly to Lightning wallets. The agent can check balances, pay invoices, and access paid resources autonomously. Your existing Lightning setup is the foundation for all of this.
https://docs.lightningenable.com/premium-guides