1 nPalm is 1 billionth of 1 Palm token (0.000000001 Palm), the network asset of the Palm Blockchain. At current network usage rates, you consume 2 - 3 nPalm per mint on Palm.
The Palm network is optimised for creators, and soon, all creators will be minting NFTs. The Palm network uses IBFT 2.0 proof of authority (PoA) consensus, with network validators being run by key stakeholders. IBFT 2.0 offers fast transaction speed and nanoscale minting. On the Palm network, it costs around 2 nPalm to mint an NFT, essentially free minting!