Development
Building a contract and reading the results back out. Solidity patterns covers the language most contracts on Ethereum-compatible chains are written in and the Foundry toolchain used to write, test and deploy them. The Graph covers the other direction — indexing chain events into something a front end can query, by publishing a schema and the mapping code that fills it. Groth16 is a zero-knowledge proof system — the most widely deployed one — and shows up whenever a contract needs to verify a computation it cannot afford to re-run.
Shipping a token does not end at deployment. Getting its icon and metadata onto wallets, explorers and aggregators is Token registration, and keeping the same companies’ scanners from flagging it is Token false alarms; both are sections of their own, one level up.