https://buttondown.com/stvpj/archive/stop-installing-product-operating-models-ai-just/2026-07-11monthlyhttps://buttondown.com/stvpj/archive/product-friction-and-the-comfort-crisis/2026-05-31monthlyhttps://buttondown.com/stvpj/archive/governance-is-a-differentiator-safety-regulation/2026-05-18monthlyhttps://buttondown.com/stvpj/archive/triage-the-diagnostic-discipline-that-separates/2026-05-10monthlyhttps://buttondown.com/stvpj/archive/context-engineering-what-comes-after-prompt/2026-05-04monthlyhttps://buttondown.com/stvpj/archive/the-eval-gap-why-most-ai-products-ship-blind/2026-04-26monthlyhttps://buttondown.com/stvpj/archive/what-product-managers-actually-need-to-know-about/2026-04-18monthlyhttps://buttondown.com/stvpj/archive/the-four-layer-model-a-pms-framework-for-ai/2026-04-13monthlyhttps://buttondown.com/stvpj2026-04-13monthlyhttps://buttondown.com/stvpj/archive/2026-04-13monthly