Notes on code, systems and artificial intelligence. Questions, experiments and things learned along the way.https://blog.oranhe.com/enhttps://blog.oranhe.com/en/posts/local-small-models/https://blog.oranhe.com/en/posts/local-small-models/Running small models on my own computer, with notes on environment setup, model selection, and inference practice.Sat, 14 Feb 2026 16:00:00 GMThttps://blog.oranhe.com/en/posts/backdoor-indicator/https://blog.oranhe.com/en/posts/backdoor-indicator/Reading BackdoorIndicator: using out-of-distribution data to proactively detect backdoor attacks in federated learning.Fri, 13 Feb 2026 16:00:00 GMThttps://blog.oranhe.com/en/posts/golist/https://blog.oranhe.com/en/posts/golist/Building a task-list backend with Go and Kratos: service design and development notes.Thu, 12 Feb 2026 16:00:00 GMThttps://blog.oranhe.com/en/posts/inversion-of-control/https://blog.oranhe.com/en/posts/inversion-of-control/Understanding inversion of control and dependency injection, and their role in Go projects.Thu, 12 Feb 2026 16:00:00 GMThttps://blog.oranhe.com/en/posts/kratos/https://blog.oranhe.com/en/posts/kratos/Learning Kratos's project structure, service definitions, and microservice development workflow.Mon, 09 Feb 2026 16:00:00 GMThttps://blog.oranhe.com/en/posts/golink/https://blog.oranhe.com/en/posts/golink/The design and implementation of a short-link project: generation strategy, database, cache, and redirection.Tue, 03 Feb 2026 16:00:00 GMThttps://blog.oranhe.com/en/posts/go-zero-api/https://blog.oranhe.com/en/posts/go-zero-api/Notes on the syntax of the go-zero API description language and how code is generated from it.Sat, 24 Jan 2026 16:00:00 GMThttps://blog.oranhe.com/en/posts/go-zero-service-demo/https://blog.oranhe.com/en/posts/go-zero-service-demo/Practicing go-zero API, database, and microservice development through a service example.Sat, 24 Jan 2026 16:00:00 GMThttps://blog.oranhe.com/en/posts/protobuf/https://blog.oranhe.com/en/posts/protobuf/Notes on Protocol Buffers syntax, message definitions, and usage.Thu, 22 Jan 2026 16:00:00 GMThttps://blog.oranhe.com/en/posts/quarto-blog-template/https://blog.oranhe.com/en/posts/quarto-blog-template/A Quarto blog template centered on writing in Markdown, documenting how content is organized and published.Thu, 22 Jan 2026 16:00:00 GMThttps://blog.oranhe.com/en/posts/go-zero/https://blog.oranhe.com/en/posts/go-zero/Learning go-zero's framework structure and service development process.Tue, 20 Jan 2026 16:00:00 GMThttps://blog.oranhe.com/en/posts/consul/https://blog.oranhe.com/en/posts/consul/Notes on service discovery, health checks, and basic Consul usage.Mon, 19 Jan 2026 16:00:00 GMThttps://blog.oranhe.com/en/posts/deepseek-papers/https://blog.oranhe.com/en/posts/deepseek-papers/A reading guide to DeepSeek V2, V3, R1, VL2, and OCR, separating architecture, training, and deployment.Mon, 19 Jan 2026 16:00:00 GMThttps://blog.oranhe.com/en/posts/go-infrastructure/https://blog.oranhe.com/en/posts/go-infrastructure/An overview of the infrastructure and common components involved in developing Go services.Mon, 19 Jan 2026 16:00:00 GMThttps://blog.oranhe.com/en/posts/hot100-acm/https://blog.oranhe.com/en/posts/hot100-acm/Rewriting Two Sum, Group Anagrams, and Longest Consecutive Sequence as standalone Go programs, and explaining the input, output, and edge cases.Mon, 19 Jan 2026 16:00:00 GMThttps://blog.oranhe.com/en/posts/desktop-shortcuts/https://blog.oranhe.com/en/posts/desktop-shortcuts/Useful Windows, macOS, and Linux shortcuts and command-line reminders.Sat, 17 Jan 2026 16:00:00 GMThttps://blog.oranhe.com/en/posts/git-guide/https://blog.oranhe.com/en/posts/git-guide/A reference for everyday Git commands, commits, branches, and remote collaboration.Sat, 17 Jan 2026 16:00:00 GMThttps://blog.oranhe.com/en/posts/go-kit/https://blog.oranhe.com/en/posts/go-kit/Learning Go-Kit's layering approach and microservice components.Sat, 17 Jan 2026 16:00:00 GMThttps://blog.oranhe.com/en/posts/go-microservices/https://blog.oranhe.com/en/posts/go-microservices/Notes on organizing services and choosing a Go microservice framework.Sat, 17 Jan 2026 16:00:00 GMThttps://blog.oranhe.com/en/posts/hot100-go/https://blog.oranhe.com/en/posts/hot100-go/Notes on the approach, complexity, and Go tests for Two Sum, Group Anagrams, and Longest Consecutive Sequence, plus the effect of map ordering.https://blog.oranhe.com/en/posts/prompt-context-skills/https://blog.oranhe.com/en/posts/prompt-context-skills/From prompts to context to tools and agents: a record of how AI interaction has changed.https://blog.oranhe.com/en/posts/rag-overview/https://blog.oranhe.com/en/posts/rag-overview/Starting from the basic retrieval and generation pipeline, this article covers RAG's architecture, multimodal extensions, and the problems encountered in practice.https://blog.oranhe.com/en/posts/vlm-overview/https://blog.oranhe.com/en/posts/vlm-overview/A guide to the basic concepts, training methods, and typical architectures of vision-language models, and how images enter a language model.https://blog.oranhe.com/en/posts/ssh-transfer/https://blog.oranhe.com/en/posts/ssh-transfer/Diagnosing slow file transfers to a local server, and recording workable ways to improve them.Wed, 10 Dec 2025 16:00:00 GMThttps://blog.oranhe.com/en/posts/daily-log-maker/https://blog.oranhe.com/en/posts/daily-log-maker/A small web tool that turns daily notes into a long, high-resolution image.Sat, 22 Nov 2025 16:00:00 GMThttps://blog.oranhe.com/en/posts/gesture-fireworks/https://blog.oranhe.com/en/posts/gesture-fireworks/Combines gesture recognition with front-end visuals so the fireworks on screen follow your fingers.Sat, 15 Nov 2025 16:00:00 GMThttps://blog.oranhe.com/en/posts/sliding-window-variable/https://blog.oranhe.com/en/posts/sliding-window-variable/Follow-along practice with the variable-length sliding window, discussing the validity condition and how to find the shortest window.Sat, 15 Nov 2025 16:00:00 GMThttps://blog.oranhe.com/en/posts/sliding-window-fixed/https://blog.oranhe.com/en/posts/sliding-window-fixed/A follow-along on fixed-length sliding windows, using basic problems to understand window movement and state updates.Sat, 08 Nov 2025 16:00:00 GMThttps://blog.oranhe.com/en/posts/jekyll-macos/https://blog.oranhe.com/en/posts/jekyll-macos/Set up Ruby, install Jekyll, and run a local blog on macOS.Thu, 23 Oct 2025 16:00:00 GMThttps://blog.oranhe.com/en/posts/jekyll-windows/https://blog.oranhe.com/en/posts/jekyll-windows/Install Ruby and Jekyll on Windows and prepare a local blog environment.Thu, 23 Oct 2025 16:00:00 GMThttps://blog.oranhe.com/en/posts/bm25-rag/https://blog.oranhe.com/en/posts/bm25-rag/From BM25 retrieval to document QA, recording the environment setup, dependency problems, and practical results.Mon, 10 Mar 2025 16:00:00 GMThttps://blog.oranhe.com/en/posts/deepseek-r1-32b/https://blog.oranhe.com/en/posts/deepseek-r1-32b/A record of the deployment environment, run steps, and test results for DeepSeek-R1-32B.Fri, 24 Jan 2025 16:00:00 GMThttps://blog.oranhe.com/en/posts/go-version-manager/https://blog.oranhe.com/en/posts/go-version-manager/Install g and switch between Go versions.Wed, 15 Jan 2025 16:00:00 GMThttps://blog.oranhe.com/en/posts/open-source-licenses/https://blog.oranhe.com/en/posts/open-source-licenses/A summary of common open source licenses and their differences, and an overview of the conventions for using and releasing code.Fri, 10 Jan 2025 16:00:00 GMThttps://blog.oranhe.com/en/posts/remote-desktop/https://blog.oranhe.com/en/posts/remote-desktop/Combining Sunshine, Moonlight, and a virtual display to build a remote desktop streaming solution.Fri, 10 Jan 2025 16:00:00 GMThttps://blog.oranhe.com/en/posts/go-basics-10/https://blog.oranhe.com/en/posts/go-basics-10/Part 10 of my Go fundamentals notes: pointers, initialization, swapping values, and nil.Sat, 19 Oct 2024 16:00:00 GMThttps://blog.oranhe.com/en/posts/go-basics-11/https://blog.oranhe.com/en/posts/go-basics-11/Part 11 of my Go fundamentals notes: syntax, examples, and lessons learned.Sat, 19 Oct 2024 16:00:00 GMThttps://blog.oranhe.com/en/posts/go-basics-12/https://blog.oranhe.com/en/posts/go-basics-12/Separate packages from modules and understand go.mod, go.sum, dependency commands, GOPROXY, and replace.Sat, 19 Oct 2024 16:00:00 GMThttps://blog.oranhe.com/en/posts/go-basics-13/https://blog.oranhe.com/en/posts/go-basics-13/Part 13 of my Go fundamentals notes: unit tests, table-driven tests, and benchmarks.Sat, 19 Oct 2024 16:00:00 GMThttps://blog.oranhe.com/en/posts/go-basics-09/https://blog.oranhe.com/en/posts/go-basics-09/Part 9 of my Go fundamentals notes: syntax, examples, and lessons learned.Fri, 18 Oct 2024 16:00:00 GMThttps://blog.oranhe.com/en/posts/go-basics-08/https://blog.oranhe.com/en/posts/go-basics-08/Part 8 of my Go fundamentals notes: syntax, examples, and lessons learned.Thu, 17 Oct 2024 16:00:00 GMThttps://blog.oranhe.com/en/posts/go-basics-07/https://blog.oranhe.com/en/posts/go-basics-07/Part 7 of my Go fundamentals notes: syntax, examples, and lessons learned.Wed, 16 Oct 2024 16:00:00 GMThttps://blog.oranhe.com/en/posts/go-basics-06/https://blog.oranhe.com/en/posts/go-basics-06/Part 6 of my Go fundamentals notes: syntax, examples, and lessons learned.Tue, 15 Oct 2024 16:00:00 GMThttps://blog.oranhe.com/en/posts/go-basics-05/https://blog.oranhe.com/en/posts/go-basics-05/Part 5 of my Go fundamentals notes: syntax, examples, and lessons learned.Sun, 13 Oct 2024 16:00:00 GMThttps://blog.oranhe.com/en/posts/go-basics-04/https://blog.oranhe.com/en/posts/go-basics-04/Part 4 of my Go fundamentals notes: syntax, examples, and lessons learned.Sat, 12 Oct 2024 16:00:00 GMThttps://blog.oranhe.com/en/posts/go-basics-03/https://blog.oranhe.com/en/posts/go-basics-03/Part 3 of my Go fundamentals notes: declarations, constants, iota, and scope.Sat, 28 Sep 2024 16:00:00 GMThttps://blog.oranhe.com/en/posts/go-basics-02/https://blog.oranhe.com/en/posts/go-basics-02/Part 2 of my Go fundamentals notes: syntax, examples, and lessons learned.Sun, 22 Sep 2024 16:00:00 GMThttps://blog.oranhe.com/en/posts/go-basics-01/https://blog.oranhe.com/en/posts/go-basics-01/Part 1 of my Go fundamentals notes: preparing a Windows development environment.Sun, 15 Sep 2024 16:00:00 GMThttps://blog.oranhe.com/en/posts/build-personal-site/https://blog.oranhe.com/en/posts/build-personal-site/Starting from GitHub and Jekyll, a complete record of building a personal website.Sat, 14 Sep 2024 16:00:00 GMThttps://blog.oranhe.com/en/posts/machine-learning-basics/https://blog.oranhe.com/en/posts/machine-learning-basics/Understand machine learning through concrete examples: loss functions, gradients, and model training.Sun, 25 Aug 2024 16:00:00 GMT