Evan Armstrong writes about profit and power in technology. He spent four years as lead writer at Every, where his column Napkin Math turned finance terms like revenue, COGS, and net income into deeply reported, deeply funny explainers for an audience of more than 100,000. In April 2026 he walked away to launch The Leverage, a solo publication promising rigorous, actionable, beautiful analysis of tech markets for founders, investors, and senior operators. He had never been paid to write before joining Every, and went on to publish almost 500,000 words there.

Luca Rossi is an Italian software engineer, entrepreneur, and writer based in Rome who turned a side project into one of the world's most-read engineering leadership newsletters. After co-founding and scaling travel startup Wanderio to 25M+ customers over eight years, he launched Refactoring in 2020 - a newsletter covering engineering management, software teams, and tech leadership. It now reaches 172,000+ subscribers, ranks in the top 10 Substack business newsletters, and generates approximately $300K/year in revenue, all operated solo. He also hosts the Refactoring Podcast, featuring guests like DHH, Kent Beck, and Camille Fournier, and in 2025 released Tolaria, a free open-source macOS knowledge base app built entirely with AI coding tools.