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Four separate newsletters, one per vertical. Follow whichever ones you want more of.

Business & Tech

UndSonntag

Systems, execution, and decision-making at the intersection of product and engineering.

Wisdom & Tradition

Torah, ethics, and close reading: notes written for clarity, not noise.

Worldview & Analysis

World systems, institutions, and incentives: analysis that names what is usually left implicit.

Craft & Living

Photography, culinary notes, and downloadable posters: quiet craft and tangible excellence.

How it works

Each publication is separate. If you want more than one, follow each publication individually.