0age: Seaport, and protocol development with OpenSea

<p>0age is the Head of Protocol Development at <a href="https://twitter.com/opensea">OpenSea</a>, and this was a conversation about <a href="https://github.com/ProjectOpenSea/seaport">Seaport</a>, the new marketplace protocol for buying and selling NFTs.</p><p>0age takes us through a tour of the Seaport protocol, talking about how it's architected; how conduits and zones work; and we even get into the low level gas optimization work they've done on the contracts. I hope this can be a helpful resource for anyone looking to understand the Seaport protocol or anyone who's building with NFTs more broadly. I also consider 0age to be a true veteran of the space, and hearing him talk through the design of the protocol can be an educational experience in its own rights.</p><p>Timestamps:</p><p><strong>1:42</strong> why build Seaport</p><p><strong>10:20</strong> the Seaport architecture</p><p><strong>12:44</strong> EIP712 signatures</p><p><strong>14:17</strong> the global concept of a nonce</p><p><strong>16:02</strong> EIP1271 and bulk listings</p><p><strong>17:18</strong> the Executor and conduits</p><p><strong>25:08</strong> zones, additional rules that can be applied on top of an order</p><p><strong>29:47</strong> implementing English auctions via zones</p><p><strong>32:17</strong> layers of the stack</p><p><strong>36:05</strong> fulfillment</p><p><strong>40:42</strong> gas optimizations and understanding the low-level behavior of the EVM</p><p><strong>58:40</strong> the interaction between OpenSea the product and Seaport the protocol</p><p><strong>01:07:06</strong> criteria based items, and partial fills</p><p><strong>01:17:50</strong> ideas to build on top of Seaport</p>