https://startupui.com/journal notes on building startups in the age of AI: how we design and build AI and health products, the tools we use, our process, and what we learn shipping. by joseph zakher, startup ui in tokyo. en Wed, 21 Oct 2026 09:00:00 +0900 https://startupui.com/journal/building-a-startup-in-the-age-of-ai https://startupui.com/journal/building-a-startup-in-the-age-of-ai Wed, 21 Oct 2026 09:00:00 +0900 joseph zakher the distance between an idea and a real product has never been this short. here's what that changes for founders, and what still decides who wins. startups AI https://startupui.com/journal/how-we-design-and-build-with-ai https://startupui.com/journal/how-we-design-and-build-with-ai Wed, 21 Oct 2026 09:00:00 +0900 joseph zakher the real workflow behind our client work and our own apps: claude code, figma and mobbin through MCP, swiftui, cloudflare, and a mac mini that never sleeps. tools AI process https://startupui.com/journal/what-an-mvp-costs https://startupui.com/journal/what-an-mvp-costs Wed, 21 Oct 2026 09:00:00 +0900 joseph zakher our real prices for a landing page, a brand, a website, a web app, and a full startup launch, what moves the number, and how the payments work. startups pricing MVP https://startupui.com/journal/startup-launch-week-by-week https://startupui.com/journal/startup-launch-week-by-week Wed, 21 Oct 2026 09:00:00 +0900 joseph zakher our target for a full startup launch is 5 to 7 weeks, with a working preview early. here's what happens each week, and what we need from you. process startups https://startupui.com/journal/designing-ai-agents-people-trust https://startupui.com/journal/designing-ai-agents-people-trust Wed, 21 Oct 2026 09:00:00 +0900 joseph zakher people trust AI they can follow. here's how we design agents that show their work, ask before they act, and keep people in charge, from our work on zaki AI. design AI agents https://startupui.com/journal/designing-health-apps-people-trust https://startupui.com/journal/designing-health-apps-people-trust Wed, 21 Oct 2026 09:00:00 +0900 joseph zakher people trust health apps with their sleep and their daily habits. here's how we design wellness products that feel calm, honest, and kind, from kenko AI and haku health. design health tech AI