Merge State Visualizer

Simon Willison’s Weblog Subscribe Sponsored by: WorkOS — The infrastructure fast-growing B2B companies use to sell to Enterprise. TOOL Merge State Visualizer — # CRDT Merge State Visualizer Bram Cohen wrote about his coherent vision for the future of version control using CRDTs, illustrated by 470 lines of Python. I fed that Python (minus comments) into Claude and asked for an explanation, then had it use Pyodide to build me an interactive UI for seeing how the algorithms work. Posted 22nd March 2026 at 6:57 pm Recent articles Experimenting with Starlette 1.0 with Claude skills - 22nd March 2026 Profiling Hacker News users based on their comments - 21st March 2026 Thoughts on OpenAI acquiring Astral and uv/ruff/ty - 19th March 2026 This is a beat by Simon Willison, posted on 22nd March 2026. vcs 2 pyodide 25 bram-cohen 3 crdt 8 Monthly briefing Sponsor me for $10/month and get a curated email digest of the month's most important LLM developments. Pay me to send you less! Sponsor & subscribe Disclosures Colophon © 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026