The Problem
Most retail investors lose money not because they lack knowledge, but because they lack discipline. I studied this problem for months and found that the greatest investors all share similar principles — but this wisdom is scattered across hundreds of books, interviews, and annual letters.
What I Built
KeepRule is a free, open platform that organizes investment principles from 26 legendary investors including Warren Buffett, Charlie Munger, Benjamin Graham, Ray Dalio, and Howard Marks.
Key Features
- 1,377 Investment Principles organized by master and topic
- AI Analysis Prompts — copy-paste prompts styled after each master's analytical framework
- Investment Psychology Test — discover your investor personality type among 8 archetypes
- Interactive Scenarios — "What would Buffett do?" decision-making exercises
- 5 Languages — EN, ZH, ES, FR, AR
Tech Stack
- Frontend: Nuxt 3 (SSR) + Vue 3 + TypeScript + Pinia
- Backend: Go-Zero (Go microservices framework)
- Database: MySQL + Redis (12h TTL caching)
- AI: Claude Sonnet for analysis generation
- Deployment: PM2 + Nginx on cloud server
- SEO: 4,756 indexed pages, programmatic SEO for quote topic pages
What I Learned
- SSR is essential for SEO — Client-side rendering killed our Google indexing initially
- Programmatic SEO works — Auto-generating pages from structured data scaled to 2,000+ pages
- Content depth > content volume — One detailed principle page outperforms 10 thin ones
- Multi-language is a competitive moat — No competitor offers investing wisdom in 5 languages
Try It
Check it out at keeprule.com — completely free, no signup required.
The investment psychology test is especially popular: Take the test
What investment principles guide your decisions? I'd love to hear in the comments.
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