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scrollback โ€” sunday june 14

Sunday, June 14, 2026 ยท 5 new bookmarks in the last 24 hours

Coming in OpenCode Desktop v2 10x faster performance (measured) Iโ€™m not kidding! I used a 30x cpu slowdown for my baseline at 4fps on an already weak machine, getting to approximately 45fps. - Migrated to tanstack virtual - Removed flicker, scroll (unintentional) jumping and lag while scrolling - Updated to the latest Pierre diffs version and shiki versions for free gains - Offloaded Shiki to a worker thread (off UI thread!!) - A number of performance tricks based on the hot path append only assumptions - Generic performance trace cpu time optimisations

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Mastering Codex (Mobile) for Engineering

How to turn your phone into a Codex control center?? At first glance, it looks like a way to check on a Codex task from your phone. That is useful, but it misses the bigger idea. The power of Codex

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Building recursive agent systems

At Cursor, we run thousands of agents to help us train the next version of Composer. We give them research tasks, and if they aren't succeeding or run into issues, they DM us on Slack or page us via

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Why does it matter if sandboxes start up in 0.0001 nanoseconds if I then spend the next 20s downloading the git repo?

Did I just unlock claude-fable-5-lite? ๐Ÿ˜‚ Since Fable 5 got pulled (US export control order, Anthropic is contesting it), I wanted to see how much of its character lives in the system prompt vs. the model itself. I ran the leaked Fable 5 prompt on Opus 4.8 head-to-head against stock 4.8.