Why I keep a build journal

Writing down why a decision was made is the cheapest possible insurance against making it again badly.

The note that saves the day

Not the one explaining what the code does — the code says that. The one explaining the option you rejected, and what went wrong when you tried it.

It doubles as a portfolio

A case study is much easier to write when the reasoning was recorded while it was still fresh. Reconstructed after the fact, it always sounds tidier than the work actually was.

Keep it short

A paragraph per decision. A journal you do not maintain is worse than none, because you will trust it.

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