Okay, I'm new to all this so please bear with me.. I'm setting up the explorer-backend in support of my project. The reason I believe I need it is to take snapshots for airdrops to NFT holders. Problem is now that I've got chain-grabber syncing I'm not sure where I go from here. Do I need to install the explorer-frontend as well? Would anyone be able to explain how to actually take a snapshot of the chain and how I can isolate the wallets that hold NFTs from a specific project?