Today I Learned

XcodeBuildMCP v2.0 was recently released, and it adds two optional skills you can install into supported CLIs (Codex, Claude, and Cursor).
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CodexMonitor recently developed an iOS app for connecting to your projects running on your desktop over Tailscale. Until there's a TestFlight / AppStore build you will need to build this yourself if you want to use it. Here's what I did to get it working.
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Today I learned that a single weird Unicode line separator (U+2028) can make Codex.app skip loading session history. I quit and restarted the app and all my sessions vanished, which was alarming. Here's how I fixed it.
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Up until recently, getting Claude to collaborate with other agents was…functional, but clunky. Recently, I started using a skill that allows me to just call OpenAI /codex from Claude.
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After upgrading from n8n v1 to v2, my workflow that uploads binary files to GitHub suddenly broke. The fix was adding an Extract from File node between the binary source and the GitHub node to manually convert the binary data to Base64.
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