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nobuo-miura/README.md

Hi, I'm Nobuo Miura 👋

Software Engineer — systems, cloud & application security, based in Hokkaido, Japan 🇯🇵

🔭 About Me

  • 🛠 10+ years building systems with C#/.NET, Python, Rust, and Go
  • ☁️ Cloud architecture & implementation on AWS / Azure / GCP
  • 🔐 Interested in security engineering, secure development, and applied AI
  • 💼 Freelance since 2020 — open to new contracts
  • ✍️ Sharing what I learn through technical articles and open-source projects

📊 GitHub Stats

Profile Details

Repositories per Language Most Used Commit Languages

📬 Contact

Portfolio DEV Community GitHub

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  1. github-ui-translator github-ui-translator Public

    A browser extension for Chrome, Edge, and Firefox that translates GitHub's UI into multiple languages using local dictionaries. No external APIs — all translation runs locally.

    JavaScript 8

  2. PolicyApprovalGate PolicyApprovalGate Public

    Deterministic, LLM-free PreToolUse guardrail for Claude Code and Codex CLI. Applies local policy to shell commands and supported file operations, with deny/ask decisions and audit logs.

    Go 1

  3. Porthole Porthole Public

    A lightweight, web-based connection testing tool that runs in Docker. Quickly verify reachability and authentication of databases, caches, message queues, and arbitrary TCP/UDP ports — all from you…

    Go

  4. SecretLens SecretLens Public

    Secret detection CLI for Git history, CI logs, env files & Docker layers — with entropy scoring, SARIF output, and GitHub Org audit mode

    Go

  5. mxguard mxguard Public

    CLI tool to audit and harden mail-related DNS records (MX/SPF/DMARC/DKIM) for Cloudflare-managed domains — lists their status and auto-protects unused domains against email spoofing.

    Rust

  6. ShieldScan ShieldScan Public

    Web security scanner for HTTP headers, CORS, JWT, SSL/TLS, and Cookies

    Go