Essays on product management, organizational dynamics and workplace culture, written from long experience in cross-functional product development. Each issue examines a concept such as feature factories, causal reasoning or what workplaces can promise, and offers reflective, practical framing.

Build Mode is PostHog's newsletter on building software products, especially AI features, with practical lessons from their own experience. Readers get concrete tactics on AI product strategy, multiplayer collaboration tools, and how engineering roles change as AI writes more code.

Ryan Singer, author of Shape Up, shares practical guidance on defining software before hiring developers, separating framing (choosing work and getting buy-in) from shaping (specifying mechanics for building). Issues include a primer on documenting business logic and a real-world end-to-end Shape Up case study.

Practical essays from a fractional CPO/CGO on product management topics such as OKRs, AI product management and consulting engagements, grounded in first-hand cases from companies like BetterLesson and Arkadium. Readers get definitions, frameworks and concrete lessons on setting goals, scoping work and building quality checks.