Lightning is what Bitcoin should have been for small payments.
Bitcoin's base layer was not designed for $5 payments. The network produces one block every ten minutes, the block has a finite capacity, and the fee market routes transactions by who pays the most per byte. For a $500 top-up that is acceptable; for a $5 top-up the fee can be 5% of the principal during a busy mempool.
Lightning is a payment layer on top of Bitcoin that settles instantly off-chain and only periodically anchors back to the base layer. Two parties open a channel by locking BTC in a 2-of-2 multisig output on-chain; afterwards they can move BTC between themselves arbitrarily many times without writing to the chain. Channels route payments through other channels — a single hop is enough for direct partners; multi-hop routing finds a path across the wider network.
For a customer paying NordBastion: open a channel with any well-connected Lightning service provider (LSP), keep some outbound liquidity, and you can top up arbitrarily many times for arbitrarily small amounts at arbitrarily fast speed. The whole exercise costs a few sats per payment plus the one-time channel-open on-chain fee.
