') + ')', 'gi'); if (regex.test(text)) { found = true; var frag = document.createDocumentFragment(); var parts = text.split(regex); parts.forEach(function(part, i) { if (i % 2 === 0) { frag.appendChild(document.createTextNode(part)); } else { var span = document.createElement('span'); span.className = 'userscript-highlight'; span.textContent = part; frag.appendChild(span); } }); node.parentNode.replaceChild(frag, node); } }); } else if (node.nodeType === 1 && node.childNodes) { // element var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT']; if (!skipTags.includes(node.tagName)) { Array.from(node.childNodes).forEach(highlight); } } } highlight(document.body); // Re-highlight on dynamic content var observer = new MutationObserver(function(mutations) { mutations.forEach(function(m) { m.addedNodes.forEach(function(node) { if (node.nodeType === 1 || node.nodeType === 3) highlight(node); }); }); }); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + ', 'i'); if (__m === '*' || __re.test(location.href)) { // Strip utm_, fbclid, gclid, etc. from all links on page (function() { var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content', 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid', 'ref', 'ref_src', 'source', 'medium', 'campaign']; function cleanUrl(url) { try { var u = new URL(url, window.location.origin); var changed = false; trackingParams.forEach(function(p) { if (u.searchParams.has(p)) { u.searchParams.delete(p); changed = true; } }); return changed ? u.toString() : url; } catch (e) { return url; } } function cleanLinks() { document.querySelectorAll('a[href]').forEach(function(a) { var clean = cleanUrl(a.href); if (clean !== a.href) a.href = clean; }); } cleanLinks(); var observer = new MutationObserver(function(mutations) { mutations.forEach(function(m) { m.addedNodes.forEach(function(node) { if (node.nodeType === 1) { if (node.tagName === 'A') cleanLinks(); node.querySelectorAll('a[href]').forEach(function(a) { var clean = cleanUrl(a.href); if (clean !== a.href) a.href = clean; }); } }); }); }); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); } })(); (function(){ try { var __m = "youtube.com"; var __re = new RegExp('^' + "youtube\\.com" + ', 'i'); if (__m === '*' || __re.test(location.href)) { // Auto-enable theater mode on YouTube (function() { function tryTheater() { var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]'); if (btn && !btn.classList.contains('activated')) { btn.click(); } } // Try immediately tryTheater(); // Try after navigation (SPA) var lastUrl = location.href; setInterval(function() { if (location.href !== lastUrl) { lastUrl = location.href; setTimeout(tryTheater, 500); } }, 1000); // Also try on player load var observer = new MutationObserver(tryTheater); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + ', 'i'); if (__m === '*' || __re.test(location.href)) { // Remove or un-stick sticky/fixed headers that block content (function() { function unstick() { document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) { if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') { el.style.position = 'static'; el.style.top = 'auto'; el.style.zIndex = 'auto'; } }); } unstick(); var observer = new MutationObserver(unstick); observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] }); })(); } } catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); } })(); })(); AmatsuZero (Daubert Jiang) · GitHub
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AmatsuZero/README.md

Hi there 👋 I'm Jiang Zhenhua (Sam)

Senior iOS / Client-side Engineer · iOS dev since 2015 · Beijing

I build client-side products for live streaming, sports content, interaction and audio/video scenarios — driving complex features from prototyping to production. Solid iOS fundamentals with cross-platform reach (KMM/Compose, Cocos, Electron/Node.js, React Native, HarmonyOS ArkTS), strong in performance optimization and stability, and fluent with AI tooling across the dev workflow.

📄 Resume: amatsuzero.github.io/AmatsuZero · 📝 Blog: LastStand · 💡 Zhihu: @姜振华

🔧 Tech & Tools

iOS / Client

SwiftObjective-CSwiftUIUIKitMultithreadingPerformanceStability

Cross-platform / Desktop

KMMComposeCocos CreatorElectronNode.jsReact NativeArkTS

Audio/Video · Graphics · Interaction

TRTCMetalSceneKitFFMPEGSDLJSBridge

Engineering / AI

CI/CDToolchainAICoding

💼 Experience

  • Tencent · iOS / Client Engineer (Tencent Sports) · 2021.05 - present
  • Baidu · Senior iOS Engineer · 2018.05 - 2021.04
  • Beijing Modao Keshí Tech · Client Engineer · 2017.04 - 2018.05
  • Beijing Sixiang Lianchuang Tech · iOS Engineer · 2016.04 - 2017.03
  • Ada Logistics Tech · iOS Engineer · 2015.09 - 2016.04

🚀 Highlight Projects

  • 3D Stadium / 3D Live Match — Cocos Creator 3D on iOS with route-based scene switching; stable 60FPS, package increment < 500KB.
  • PC Streaming Assistant / Watch-Party — Electron + Vue + OBS Node; cross-process same-layer rendering brings local preview latency < 5ms, CPU < 10%.
  • Match Interaction & Client Perf — Danmaku 2.0, WebView pre-rendering (first-screen ~87% faster), HarmonyOS build.

🔗 Connect

GitHubZhihuBlogEmail

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  1. EshopHelperEshopHelperPublic

    Eshop商品浏览器

    Swift 1