Archives

From paraxial ideals and Seidel aberrations to classic lens groups like the Cooke Triplet, Double Gauss, telephoto and retrofocus, then on to aspherics, special glass, MTF and computational optics — a beginner's course that threads photographic lens design into one coherent picture.

Facing Claude and ChatGPT's OAuth-only restriction, I built MCP-Key2OAuth — a lightweight Cloudflare Workers proxy that lets any API-key-authenticated MCP server connect to major AI clients without touching the backend.

A travel log from late 2025 with a friend, going from Taipei south through Taichung, Tainan, and Kaohsiung, then returning home via a Hong Kong layover.

A practical guide and troubleshooting record on using an idle OpenWrt/ImmortalWrt router to build a low-latency AirPlay 2 receiver for the Xiaomi Smart Speaker Pro.

A practical project demonstrating how to build a personalized news recommendation system using LLMs.

Transform a dust-gathering Kindle Oasis 2 into an elegant desktop E-Ink secondary display.

Countdown to Tebi.io Shutdown. A log of the emergency migration of my image host to Cloudflare R2. Encountering pitfalls with KV storage high-frequency write limits, I solved the index reconstruction challenge at a low cost by using a Python script to modify backup metadata and switching to the D1 database.

When the requirement shifts from a "public resume" to "long-term writing," the tech stack should also switch to something lighter and handier.

Gemini 3 Pro SOTA Model Capability Test

Engraving memories with computing power.

Existence precedes perfection.

Scenery has no fixed bounds; it is revealed by the mind’s illumination.

All content is generated by LLM, please exercise discretion.

All content herein was generated by an LLM and compiled into this document to facilitate sharing with family and friends.

How to set up ImmortalWrt on the Cudy TR3000 router.

Data is invaluable.

Pro tip: This guide has been seasoned with DeepSeek V3's special humor sauce.

Incus CPU usage bug

Grok 2 IG in Open WebUI.

Good cheap domains

Play more games on Steam Deck.

How my homelab evolved.