Deep DiveWICHI
AI Search Engine Comparison: ChatGPT Search, Perplexity, AI Overviews
Comparative analysis of ChatGPT Search, Perplexity, and Google AI Overviews on accuracy, speed, and cost, with optimal engine recommendations for each query type.
Build, Document, Share
A developer's quiet notebook — practical notes from experiment to production
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AI Search Engine Comparison: ChatGPT Search, Perplexity, AI Overviews
A data-driven comparison of ChatGPT Search, Perplexity, and Google AI Overviews — examining search mechanisms, citation formats, and brand exposure patterns.
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Deep DiveWICHI
GEO Definition and Structural Differences from SEO
Definition of GEO and its six structural differences from SEO. Proposes a new framework for brand visibility in an environment where AI search provides answers instead of link clicks.
LabWICHI
LLM-as-Judge — Evaluating AI Responses with AI
Analysis of the LLM-as-Judge pattern for evaluating AI response quality, featuring multidimensional metric design, reliability verification, and strategies for position and verbosity bias.
Deep DiveWICHI
Lemon Squeezy vs Stripe — A Korean Solo SaaS Builder's Comparison
Comparative analysis of Lemon Squeezy (MoR) and Stripe for Korean solo SaaS builders, providing a practical guide on global tax compliance, fees, and business registration.
BuildWICHI
After Hackathon Rejection — Pivoting to Independent SaaS
Recording the 24-hour pivot of WICHI to an independent SaaS after a hackathon rejection, covering i18n implementation, SEO setup, and monetization roadmap restructuring.
BuildWICHI
Lovable to Vercel — Frontend Migration Record
Migration from Lovable ($25/mo) to Vercel ($0) including build pipeline reconfiguration, documenting the frontend hosting transition process.
Deep DiveMMU
n8n's Fair-code Experiment — Neither Open Source Nor Proprietary
Analyzing n8n's Fair-code license strategy as a defense against AWS risk in open source monetization, and how licensing defines the boundaries of viable business models.
Deep DiveMMU
Open Source License Selection Guide — MIT vs Apache vs Fair-code vs Additional Clauses
Comparison of open source licenses (MIT, Apache 2.0, BSL, etc.) and a decision framework based on project scale and revenue model, including MMU's choice of MIT.
BuildMMU
Solo SaaS Security — The Minimum You Must Do
Essential security checklist for solo SaaS builders. Defense against five critical OWASP Top 10 vulnerabilities and real-world security configuration cases improved for WICHI.
Build
Build, Document, Share
Personal execution notes from a non-tech builder who started with AI FOMO and is now navigating the messy reality of production beyond the initial 'one-click' hype.