Show HN: Briefer – Multiplayer notebooks with schedules, SQL, and built-in LLMs

Hi HN! We're Lucas and Lucas from Briefer and we're building better notebooks. Our notebooks are kind of a mix between Notion and Jupyter with extra features, like the ability to schedule notebooks, turn them into dashboards and apps, and write SQL queries whose results turn into data frames automatically. We're building better notebooks because we think they're a great idea poorly executed - for three reasons. The first problem with notebooks is that they're difficult to share. Non-technical people don't want to download docker containers and install Python libraries to see what the data team is doing. Then, the data team takes screenshots of their work and pastes them somewhere else. The issue with this approach is that the data gets stale, and the output is not interactive, so it's difficult to get feedback and iterate. The second problem with notebooks is that they get too messy too quickly. One morning you have 10 blocks, and by the end of the da