1Connect your wallet
MetaMask, Rabby, Coinbase Wallet or any browser wallet. It pays and approves every step; this app never sees a key. The page asks the wallet to switch to the right network (and adds it if the wallet doesn't know it yet).
2Deploy the collection contract
One contract holds the whole collection: its name, the max supply (the number of pieces, fixed forever), the links and the royalty. The connected wallet becomes its owner.
3Mint the pieces
Each batch is one wallet approval. The contract numbers the pieces itself and refuses a batch that's already minted, so closing the page or pressing twice can never mint extra: press Mint again and it carries on from where the chain is.
4Manage
Re-point after you stored an edited version (step 4 on the main page): one transaction moves every piece to the new links and tells marketplaces to refresh. Royalty can be changed any time. Freeze makes the links permanent.
π Freeze forever
After freezing, nobody (you included) can change a link again. Do it only when everything is final. Type FREEZE to enable the button.