The recording of the talk I gave at ElixirConf US 2026 a few days ago is already live. It shows the local-first data layer I built for Hologram, starting with a trip planner that keeps working offline and syncs between browsers, then how it works. The data layer isn’t released yet, it’s still on a branch, but the demo app’s code is public on GitHub as bartblast/hologram_offgrid. Watch it here: https://www.youtube.com/watch?v=jdg_UrLp0bU