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Blog
Notes on money and software
Plain-language writing on budgeting, planning, and how Preso is built. No advice, no hype.
August 2026
The Roth conversion math, without the hand-waving
When converting to a Roth genuinely helps, when it genuinely doesn’t, and the one identity that makes most of the argument disappear — with the arithmetic shown.
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Why Preso never tells you what to do with your money
Preso shows you the math and labels every assumption — but it will never tell you what’s "optimal." That line is deliberate. Here’s why it makes the product more useful, not less.
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