On November 28 and 29, 2022, in Lisbon, Portugal, will take place the two-day Polkadot Developer Conference. Web3 Foundations is in charge of planning the event. Layer-1 blockchains, dapps, smart contracts, infrastructure, tools, cross-chain interoperability solutions, and other components make up the Polkadot technology stack. The sub0 conference is for programmers working at all stages of the Polkadot tech stack.