https://xyanrch1024.github.io/Recent content on xyanrch's BlogHugoenSat, 18 Jul 2026 12:00:00 +0800https://xyanrch1024.github.io/posts/overplus-getting-started/Sat, 18 Jul 2026 12:00:00 +0800https://xyanrch1024.github.io/posts/overplus-getting-started/Step-by-step guide to set up your own proxy server with Overplus. One-click install script + Windows GUI client, up and running in 5 minutes.https://xyanrch1024.github.io/posts/overplus-optimization/Fri, 17 Jul 2026 15:00:00 +0800https://xyanrch1024.github.io/posts/overplus-optimization/Full-stack performance optimization for Overplus (a C++17 proxy server): global TCP DNS cache, SSL session reuse, buffer tuning, and log level demotion — 146 concurrent connections at just 25MB memory.https://xyanrch1024.github.io/posts/fan-qiu-zhu-ji/Wed, 15 Jul 2026 20:00:00 +0800https://xyanrch1024.github.io/posts/fan-qiu-zhu-ji/<p>When nothing goes right, the instinct is to avoid — but avoidance changes nothing.</p> <p>When you hit a wall, look within. Turn inward — that&rsquo;s where the way out begins.</p>https://xyanrch1024.github.io/posts/random-thoughts/Sat, 11 Jul 2026 12:00:00 +0800https://xyanrch1024.github.io/posts/random-thoughts/十年尘埃十年雪，百年树木仍长青。曾记年少青云志，不负韶光不负卿。https://xyanrch1024.github.io/posts/repl-design/Thu, 09 Jul 2026 16:00:00 +0800https://xyanrch1024.github.io/posts/repl-design/Designing an interactive Read-Eval-Print Loop for the kai scripting language — multi-line input, expression auto-printing, state persistence, and graceful error recovery.https://xyanrch1024.github.io/posts/kai-lang-frontend/Mon, 06 Jul 2026 15:00:00 +0800https://xyanrch1024.github.io/posts/kai-lang-frontend/From lexer and parser to bytecode compiler — building a Lua-like language frontend for a stack-based VM.https://xyanrch1024.github.io/posts/stack-vm-design/Mon, 06 Jul 2026 14:00:00 +0800https://xyanrch1024.github.io/posts/stack-vm-design/A deep dive into the design of a stack-based virtual machine, covering architecture, instruction set, execution model, and memory management.https://xyanrch1024.github.io/about/Mon, 06 Jul 2026 12:10:00 +0800https://xyanrch1024.github.io/about/<p>I&rsquo;m a programmer who loves coding.</p> <ul> <li><a href="https://xyanrch1024.github.io/resume/">Resume</a> — full CV</li> </ul> <h2 id="github">GitHub</h2> <ul> <li><a href="https://github.com/xyanrch">xyanrch</a> — previous account (inaccessible, 2FA lost)</li> <li><a href="https://github.com/xyanrch1024">xyanrch1024</a> — currently active account</li> </ul>https://xyanrch1024.github.io/resume/Mon, 06 Jul 2026 12:10:00 +0800https://xyanrch1024.github.io/resume/<p>yanrong cheng — <a href="mailto:yan********@gmail.com">yan********@gmail.com</a> — 150****3410</p> <h2 id="profile">Profile</h2> <ul> <li>Over nine years of C/C++ development experience. Proficient in STL, C++11/C++17, and modern C++ practices. Also experienced with scripting languages (Linux Shell, Python, Node.js).</li> <li>In-depth understanding and research of compiler frontend and backend, as well as virtual machine implementation. Also possess deep knowledge of operating system internals.</li> <li>Creator of <strong>overplus</strong> (170+ stars on GitHub), a widely adopted high-performance proxy server. Also actively building compilers, virtual machines, and infrastructure software as open-source projects.</li> <li>Passionate about open source; contributed patches to SerenityOS&rsquo;s JavaScript engine.</li> </ul> <h2 id="education">Education</h2> <h3 id="donghua-university-20139---20163"><strong>Donghua University</strong> <code>2013.9 - 2016.3</code></h3> <p>Shanghai</p>https://xyanrch1024.github.io/posts/deploy-hugo-blog-to-github-pages/Mon, 06 Jul 2026 11:30:00 +0800https://xyanrch1024.github.io/posts/deploy-hugo-blog-to-github-pages/A step-by-step guide to setting up a Hugo blog with automatic deployment to GitHub Pages using GitHub Actions.https://xyanrch1024.github.io/posts/hangzhou-travel-guide/Sat, 06 Sep 2025 12:30:00 +0800https://xyanrch1024.github.io/posts/hangzhou-travel-guide/A travel guide to Hangzhou, covering West Lake, Lingyin Temple, and local cuisine.https://xyanrch1024.github.io/posts/my-first-post/Sun, 06 Jul 2025 11:26:47 +0800https://xyanrch1024.github.io/posts/my-first-post/My first blog post powered by Hugo and GitHub Pages.https://xyanrch1024.github.io/404/Mon, 01 Jan 0001 00:00:00 +0000https://xyanrch1024.github.io/404/<h2 id="page-not-found">Page Not Found</h2> <p><a href="https://xyanrch1024.github.io/">Back to Home</a></p> <script src="https://volunteer.cdn-go.cn/404/latest/404.js"></script>