Skip to content
>sdcb.ai
中文
ZHOU Jie

About

ZHOU Jie

Serving dotNET, constructing brilliance

Microsoft MVP · 2023 – presentAuthor of “.NET骚操作”.NET Conf China speaker

Hi, I’m ZHOU Jie, better known as sdcb — short for “Serving dotNET, constructing brilliance”. I’ve been a Microsoft MVP every year since 2023, focused on C# and .NET.

I wrote my first blog post, about Direct2D, in 2013; the “.NET骚操作” blog and WeChat account followed. What I do boils down to one line:building the things people think .NET can’t do — in .NET. OCR, object detection, video, RAW photos, an LLM gateway, and now an inference engine written entirely in C#.

Libraries I maintain — PaddleSharp, OpenVINO.NET, Sdcb.FFmpeg and more — run in production at many companies; Sdcb Chats is my open-source LLM gateway. These days most of my time goes into SimdPaddleOCR, which drops native inference runtimes entirely — 2.0 ships with Vulkan / Metal GPU support.

GitHub stars
5.1k
NuGet downloads
3.24M
Docker pulls
228.5k
Blog reads
402.5k
NuGet packages
217

Principles

How I build in the open

If it can be C#, it is C#

Inference engines, SIMD kernels, ONNX interpreters — “.NET can’t do that” usually means nobody has tried yet.

Measure, don’t guess

Every performance claim comes with a benchmark — in CI, across platforms, whenever possible.

Open and reproducible

Code, benchmarks, samples and the LINQPad scripts behind every post are public and runnable.

Explain it well

A release usually comes with a post that explains the why and the how.

Timeline

A decade and more, one thread

  1. 2013

    First posts on cnblogs

    Direct2D, DWrite, shared_ptr — starting out with C++ and Windows graphics.

    Link
  2. 2016

    sdmap: a dynamic SQL template engine

    My first widely used .NET library — 100k+ NuGet downloads to date.

    Link
  3. 2019

    The “.NET骚操作” blog & WeChat account

    Blog and WeChat account launch: live-stream danmaku, face detection, RAW decoding, 2048 — doing things people didn’t think .NET could do.

    Link
  4. 2021

    PaddleSharp, and .NET Conf China

    Bringing Baidu Paddle to .NET — soon one of the most popular OCR stacks in .NET. Talk at .NET Conf China 2021 on computer vision with OpenCV.

    Link
  5. 2022

    Sdcb.FFmpeg

    A complete FFmpeg API for .NET generated with CppSharp, presented at .NET Conf China 2022.

    Link
  6. 2023

    First Microsoft MVP award

    Renewed every year since. Also a prolific year: OpenVINO.NET, Sdcb.Arithmetic (GMP/MPFR arbitrary precision), Sdcb.LibRaw (camera RAW) and a batch of LLM SDKs.

    Link
  7. 2024

    Sdcb Chats goes open source

    An LLM front-end and AI gateway for self-hosting, followed by 17 minor releases at a relentless pace.

    Link
  8. 2025

    MCP, C# Runner and code interpreters

    A hand-rolled MCP server, the open-source csharp-runner, and ChatGPT-style data analysis inside Chats.

    Link
  9. 2026

    SimdPaddleOCR: inference in pure C#

    No native inference runtime at all — hand-written SIMD kernels and a managed ONNX interpreter, 1.0 → 1.4 in a month; 2.0 landed in October with Vulkan / Metal GPU backends, 15× faster on an RTX 3080 Ti. HyMT2Sharp, a pure-C# translation LLM runtime, shipped in September and reached the GPU with 2.0 in October.

    Link
  10. Next

    Sdcb Chats 2.0: toward an agent platform

    Persistent Docker workspaces, one-sentence website publishing, an agent that asks and listens, stateful files and resumable streams.

    Link

Talks

Conference talks

Contact

Find me

GitHub@sdcbcnblogs.NET骚操作NuGetsdflyshaDocker HubsdcbQQ / WeChatCommunityMicrosoft MVPProfile

For project questions, opening an issue on the repo is the fastest route.