@jidonglab
1 project a week — building in public
Nothing here yet.
Nothing here yet.
Apr 30 · 6 min read · OpenAI's internal teams landed five times more pull requests in the three weeks after they switched on Symphony. Not 50% more. Five hundred percent more, on the same headcount, in 21 days. That single number is why I cloned the repo the day it droppe...
Join discussionApr 30 · 6 min read · Last quarter I shipped a single landing hero with 47 image iterations across four tools. This week I shipped three landing pages, two onboarding flows, and a full pricing section in the same tool I write code in. The thing that broke the loop is not ...
Join discussionApr 30 · 7 min read · On a 200-task bench split across a TypeScript SaaS and a Python ML pipeline, GPT-5.5-Codex closed 81% of tasks unattended versus 67% for GPT-5.3-Codex, and burned 38% fewer reasoning tokens on the multi-step ones. But on trivial single-file edits it ...
Join discussionApr 30 · 7 min read · The interesting thing about the April 2026 Codex update isn't computer use. It isn't the model bump either. The real story is that Codex stopped being a CLI. The Codex App Server is the underlying agent harness OpenAI just made public — the same engi...
Join discussionApr 30 · 7 min read · At 9:14 a.m. on a Tuesday I watched my cursor drift across the menu bar without me touching the trackpad. It hovered over the Numbers icon, paused, then double-clicked. A spreadsheet I had not opened in three weeks slid into focus, and a new column a...
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