Co-founder of Santara. I build software that takes the busywork off people’s plates. Writing on product, applied AI and backend architecture.https://phamphutai.com/https://phamphutai.com/2026/10/07/boring-businesses-make-the-best-businesses/https://phamphutai.com/2026/10/07/boring-businesses-make-the-best-businesses/Payroll, invoices, cleaning schedules. Nobody dreams about them, but everybody has to do them — and people gladly pay to make them go away. Why unglamorous problems are often the best place to build.Wed, 07 Oct 2026 00:00:00 GMTBusinessStartupsSmall BusinessEntrepreneurshipProducthttps://phamphutai.com/2026/10/07/read-every-word-you-sign-term-sheets-for-first-time-founders/https://phamphutai.com/2026/10/07/read-every-word-you-sign-term-sheets-for-first-time-founders/Valuation, dilution, liquidation preference, board seats, vesting. The words in a term sheet decide who controls your company and who gets paid. A plain-language guide for first-time founders.Wed, 07 Oct 2026 00:00:00 GMTStartupsInvestorsFundraisingEntrepreneurshipBusinesshttps://phamphutai.com/2026/10/06/people-pay-to-do-less/https://phamphutai.com/2026/10/06/people-pay-to-do-less/Most founders sell what their product can do. Customers buy what they no longer have to do. A short essay on the most underrated idea in business: removing work.Tue, 06 Oct 2026 00:00:00 GMTBusinessStartupsProductSmall BusinessEntrepreneurshiphttps://phamphutai.com/2026/10/06/your-real-competitor-is-a-spreadsheet/https://phamphutai.com/2026/10/06/your-real-competitor-is-a-spreadsheet/Most software doesn't lose to another startup. It loses to Excel, Google Sheets and a paper notebook. Why that happens, and how to win anyway.Tue, 06 Oct 2026 00:00:00 GMTBusinessStartupsProductSmall BusinessSaaShttps://phamphutai.com/2026/10/05/my-first-business-teacher-william-christopher-skelley/https://phamphutai.com/2026/10/05/my-first-business-teacher-william-christopher-skelley/He taught me how startups really work: the light side, the dark side, and why every founder ends up working for the investors. Then his own story taught me the hardest lesson of all.Mon, 05 Oct 2026 00:00:00 GMTMentorshipEntrepreneurshipStartupsInvestorsPersonalhttps://phamphutai.com/2026/03/14/clean-architecture-in-practice-how-to-structure-large-backend-systems/https://phamphutai.com/2026/03/14/clean-architecture-in-practice-how-to-structure-large-backend-systems/As backend systems grow, codebases often become harder to maintain. Business logic gets mixed with frameworks, database logic spreads across services, and…Sat, 14 Mar 2026 00:00:00 GMTBackendArchitecturehttps://phamphutai.com/2026/03/14/writing-better-code-with-solid-principles/https://phamphutai.com/2026/03/14/writing-better-code-with-solid-principles/Modern software systems grow quickly. Without good design practices, codebases become difficult to maintain, extend, and debug. One of the most influential…Sat, 14 Mar 2026 00:00:00 GMTSystem Designhttps://phamphutai.com/2025/06/29/recommendation-system-how-important-is-it/https://phamphutai.com/2025/06/29/recommendation-system-how-important-is-it/We have been fascinated by social media platforms like TikTok, YouTube, and Facebook. Have you ever wondered how these platforms seem to predict our…Sun, 29 Jun 2025 00:00:00 GMTRecommendation SystemTechnologycollaborative filteringcontent-based filteringhybrid recommendation modelhttps://phamphutai.com/2025/06/14/generative-ai-large-language-model-i-fine-tunning-gpt-model/https://phamphutai.com/2025/06/14/generative-ai-large-language-model-i-fine-tunning-gpt-model/You’ve probaly heard people talk about LLMs – short for Large Language Model – especially since tools like ChatGPT have become popular. But what exactly is…Sat, 14 Jun 2025 00:00:00 GMTGenAITechnologyhttps://phamphutai.com/2025/06/10/generative-ai-chapter-1-what-is-gen-ai/https://phamphutai.com/2025/06/10/generative-ai-chapter-1-what-is-gen-ai/Lately, everyone’s talking about Generative AI. You hear about it everywhere – at the coffee shop, in the office, even from your family. It’s changing how…Tue, 10 Jun 2025 00:00:00 GMTGenAITechnology