We got a great tools for client JS and for backend. But between them we have old AJAX-REST. It works great for our tasks in past, but web applications become more complicated. Andrey Sitnik, creator of PostCSS and Autoprefixer, will overview new ideas in client-server communications and announce start his new open source project. How we could take Relay and Swarm.js ideas and goes further? What operation log synchronization could reduce code lines and bring out-of-box live updates and offline editing?