∴ Posts
Notes on independent building, AI tools, product thinking and investing, translated from the original Chinese posts.
In the Hotel Lobby AI rap trend, RapVideo AI is one of the tools that turned the whole pipeline into a single web form: upload photos, pick a stage, type a topic, and it generates lyrics, beat, vocals and lip sync together. This walkthrough covers the actual interface, the modes, how pricing works and what to check before you use it.
Google is allowing candidates to use Gemini in select software engineering interviews, shifting the evaluation benchmark to "AI fluency": how you craft prompts, how you verify AI output, how you debug code, and whether you can take responsibility for the final result. This post unpacks the framework and what it means for anyone building with AI.
A line-by-line breakdown of the mobile Top 50 in a16z's seventh Gen AI consumer-app ranking: 20 photo/video editors, 16 chat assistants, five from ByteDance, four from Meitu, plus Meituan and browsers. Then compare the new paid ranking to see what independent developers should and should not learn from the MAU list.
What high achievers and programmers care about is often different from the big things actually moving in the market. Starting with ByteDance's playbook, this article explains why interest should not choose the market, where to look for topics, why behavior matters more than narratives, and where the real incremental opportunity lies in the AI era.
AI is highly capable at execution, but when money is involved its judgment often runs against business common sense: it tells you to avoid crowded markets, says a trend has passed, and treats piggybacking on keywords or traffic as unethical. This article unpacks those familiar warnings and separates risk aversion from genuine red lines.
After reaching $100 million in ARR, Meshy founder Hu Yuanming reflects on Founder mode, team management, AI and humans, strategy and execution, and personal principles.
AEO is not stuffing keywords into models. It is filling product information around real long-tail questions, leaving citable evidence off-site, and using fixed question sets and controlled experiments to distinguish mentions, citations, recommendations, and business conversion.
Asking everyone, buying courses, and chasing other people’s summaries all amount to eating food someone else has already chewed. In the AI era, get as close as possible to first-hand information, understand fundamentals yourself, let AI execute, protect your attention, and correct direction through real feedback.
A continuation of the Shishuo Xinyu story of seven-year-old Wang Rong identifying bitter plums, told through seven scenes: roadside bitter plums, sweet suburban plums, newly ripe sweet plums, sweet plums on high branches, sweet plums in a risky place, official orchards and wild plums, and plums everyone calls sweet. The same untouched plum tree yields a different answer each year.
A repost of a long post by Tang Jie, Tsinghua professor and founder of Zhipu AI: why technology now carries unprecedented weight in the AI era, how vision sets the ceiling, and why cognition matters more than either.
AppToVid generates advertising videos in bulk for apps. Behind it is a turn from a failed project and an acquisition playbook worth copying: make promotional videos in advance for the top 200 apps in each ranking, use on-page SEO to capture app-name searches, and let target customers find you.
A same-day review after hearing a founder speak: two traits shared by successful people, how to remove social distractions, a 70/20/10 time split, lessons from an unmanaged subscription and cash planning, and three recent insights.
A complete edited transcript of DeepSeek founder Liang Wenfeng’s investor meeting on vision-driven organization, open source and commercialization, and the philosophy of restraint.
A complete guide to X operations from zero: profile setup, content strategy, cold-start tactics, analytics, and monetization.
A detailed guide to the full process, required documents, and precautions for mainland residents applying for a Hong Kong bank account.
People often ask how to use SOTA models. AMP's model-selection strategy shows the answer: max out every stage to approach the real ceiling of AI programming.