Devlog

Devlog

Short technical notes from building Port42: what broke, why, and the workaround. Each one names the commit.

September 2026

On macOS, asking a TCP socket who is connected can tell you it's root

LOCAL_PEERCRED on a TCP socket returns success and writes nothing. Zero the struct first and both sanity checks pass on uid 0.

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September 2026

A one-word answer from Claude Code cost 56 times more on default settings than with tools off

We measured claude -p before using it from a script. Default flags load the whole agent harness, about 23,000 tokens, for the word OK.

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September 2026

We tried compiling Port42's core on Linux and Windows. The same 30 of 57 files built on both

CI built the kernel on both platforms, dropping any file that failed. Windows didn't lose a single file that Linux kept.

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