HarmonyOS · ArkTS · local tools · open source
I am 码头哥. What lives here is what I write, package and maintain myself — one HarmonyOS reading app, two cross-platform players, a few local tools, a government-disclosure archiving toolchain and a server rework that runs on its own. Each one spells out how it is made, and where it falls short.
The entity this site is filed under, and the work I am most comfortable showing.
01 · Video & readingA native HarmonyOS reading app: photograph a textbook and OCR it on-device with no network access. Covers the unified Chinese syllabus for grades 1-9 and 215 graded classical poems, with AI read-along scoring, virtual-classroom chorus reading and a focus study room.
See how it is built02 · Video & readingA pure native HarmonyOS smart player — one codebase adapts to phones, tablets and smart TVs. Published on Huawei AppGallery, with online playback and local caching.
See how it is built03 · DocumentsThe Chinese edition of WordCraft: the full upstream Rust source plus a standards layer for official documents, theses and legal papers. Word counts by character, correct East Asian fonts and language tags in DOCX. Offline, cross-platform, drivable by CLI and MCP.
See how it is built04 · Productivity toolsA Windows cleanup tool that finds what is genuinely safe to delete. Ten kinds of evidence drive the scan, files are backed up for seven days and can be rolled back, the registry is exported before it is touched, and every decision states its reason.
See how it is built
05 · Productivity toolsA local audio converter that reads its own output back to verify it. The source file is never modified, every result is checked with ffprobe, and you get 7 target formats, 6 themes and a Chinese/English interface.
See how it is built
06 · AI & automationFocused on collecting, extracting and archiving Chinese government disclosure. 155 sources are double-verified, there are 21 top-level and 105 second-level categories, and summaries are assembled only from labelled facts in the source text — no generated conclusions.
See how it is builtGrouped by field. Every row opens onto how it was made.
