The guest of this episode is Matthew Weidner, a computer science PhD student at Carnegie Mellon University focussing on distributed systems and local-first software. Matthew has recently published an extensive blog post about architectures for central server collaboration which is explored in depth in this conversation comparing different approaches such as CRDTs and event sourcing. Mentioned in podcast Matthew Weidner: x.com/MatthewWeidner3 / mattweidner.comArchitectures for Central Server CollaborationTRVE Data projectShapiro 2011 paperCarlos Baquero papersCRDT paper (the "very theoretical" one)Collabs: Docs / PaperJupiter collaboration system from the 90sBuilding on QuicksandImmutability Changes EverythingInk & Switch's Upwellinglist-positionsFractional indexingLinks:  Website: localfirst.fmX/Twitter: x.com/localfirstfmYouTube: youtube.com/@localfirstfmThank you to Expo and Rocicorp for supporting the podcast.