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Documents how my personal website evolved from scattered page scripts into a persistent site shell, and how it governs lifecycle and visual-continuity problems across overlays, navigation, first-frame state, font readiness, page enhancements, and Pagefind search.
Differentiate between Git commit identity, GitHub CLI accounts, remote authentication, and commit signatures, and establish verifiable configurations for single-account, multi-account, and multi-platform environments.
Documents the complete implementation of rotating scenic backgrounds for my personal website, from technology choices, the wallpaper pool, and client-side rotation to first-frame restoration, layer compositing, and the handoff to a persistent site shell.
梳理 Docker 与 Podman 在 rootful、rootless 和 API service 模式下由谁管理存储、数据落在哪里，以及 endpoint、context、sudo 和有效 UID 分别改变了什么。
A practical Git operations quick reference for real-world scenarios, helping you quickly find useful but hard-to-remember commands, and clarifying their usage conditions and execution impacts.
Examines why intent cannot be fully specified in advance when generative AI is used for open-ended tasks—how concrete outputs shape judgment, why local feedback cannot be promoted directly to global rules, and how exploration creates new problem dimensions, reorganizes intent, and can ultimately invalidate the overall framework—while also considering the same structure in human communication and joint activity.
从 GNOME 的重复 Dock 图标出发，完整记录 Obsidian 在原生 Wayland 下的身份排查、失败尝试、Electron desktopName 根因、NixOS 复现环境与后续上游修复。
An introduction to SSH public-key authentication, age file encryption, and SOPS structured-secret management, including common operations and methods for converting and verifying SSH keys and age identities.
An interactive timing diagram of the periods, phases, and delays among steering-feedback generation, upper-level decision updates, command transmission, and lower-level updates in autonomous lateral control, together with the simplifications this timing abstraction makes relative to a real steering system.
An interactive examination of how closely the oriented arc-length increment of a vehicle trajectory matches the reference-path arc-length increment under different vehicle states.
Defines the vehicle's Frenet state through the closest-point projection of the rear-axle center, derives a three-state time-domain model and a two-state reference-path-arc-length-domain model under the no-sideslip kinematic assumption, and explains arc-length conversion, the coordinate validity domain, and sign conventions for reversing.
Defines the unit tangent, left unit normal, and signed curvature of a planar reference path; derives the Frenet differential relations from both the orthonormal-frame and path-heading representations; and establishes consistent geometric and sign conventions for vehicle kinematics in Frenet coordinates.
A continuously updated index of self-hosted tools and related services, organized by purpose for exploration and evaluation.
An investigation into organizing and composing multi-module configurations in autonomous-driving systems, reproducing experiments, and selecting mature solutions for runtime configuration distribution.
A record of the technology upgrade from Jekyll to Astro, the principal technology choices, and the AI-assisted process of rebuilding my personal website.