インフラ、クラウド、SRE、自動化、AI、プログラミングなどに関する学びや実践を記録する個人のテックブログです。実際の構築手順やトラブルシューティング、ツールの使い方、実験ログなどをわかりやすく共有しています。 https://hiroe-tech-notes.aomaro.com/en ja Wed, 23 Sep 2026 02:08:19 +0000 Trying to implement real-time editing and diff display with Emacs, using WezTerm for screen splitting and CUI environment for agent commands. Tue, 22 Sep 2026 14:09:48 +0000 https://hiroe-tech-notes.aomaro.com/en/posts/emacs-real-time-diff-highlight https://hiroe-tech-notes.aomaro.com/en/posts/emacs-real-time-diff-highlight AI開発 Making the home PC accessible from outside securely with OpenCode and Cloudflare, enabling progress checks and instructions. Sun, 20 Sep 2026 14:41:09 +0000 https://hiroe-tech-notes.aomaro.com/en/posts/remote-access-opencode-cloudflare https://hiroe-tech-notes.aomaro.com/en/posts/remote-access-opencode-cloudflare AI開発 Muse Spark 1.3 is cheap and high-performance but requires privacy considerations. Sun, 06 Sep 2026 08:40:01 +0000 https://hiroe-tech-notes.aomaro.com/en/posts/muse-spark-1-3-open-code-deepseek-v4-comparison https://hiroe-tech-notes.aomaro.com/en/posts/muse-spark-1-3-open-code-deepseek-v4-comparison インフラ Confirmed ChatGPT's sandbox environment and Docker existence through command execution. Verified its authenticity through hash checks. Wed, 26 Aug 2026 15:47:40 +0000 https://hiroe-tech-notes.aomaro.com/en/posts/chatgpt-container-sandbox-experiments https://hiroe-tech-notes.aomaro.com/en/posts/chatgpt-container-sandbox-experiments インフラ To install Ruby in Docker Sandboxes, install libraries with rbenv and set environment variables. Sat, 22 Aug 2026 13:12:49 +0000 https://hiroe-tech-notes.aomaro.com/en/posts/docker-sandbox-ruby-setup https://hiroe-tech-notes.aomaro.com/en/posts/docker-sandbox-ruby-setup インフラ When running AI tools with Docker Sandboxes, you can specify CPU and memory. Default is 50% of host memory and all CPUs. Example: 'sbx run ... -m 20g -cpus 10'. Thu, 20 Aug 2026 12:22:52 +0000 https://hiroe-tech-notes.aomaro.com/en/posts/docker-sandboxes-allocate-cpu-memory https://hiroe-tech-notes.aomaro.com/en/posts/docker-sandboxes-allocate-cpu-memory インフラ Tried OpenCode with Docker Sandboxes. Needed network permissions and troubleshooting to confirm operation. Wed, 19 Aug 2026 13:15:41 +0000 https://hiroe-tech-notes.aomaro.com/en/posts/docker-sandboxes-opencode-setup https://hiroe-tech-notes.aomaro.com/en/posts/docker-sandboxes-opencode-setup インフラ Solved the sub-agent automatic call issue with manual specification, improving implementation efficiency and cost reduction. Sun, 26 Jul 2026 13:15:21 +0000 https://hiroe-tech-notes.aomaro.com/en/posts/opencode-subagent-auto-call-issue https://hiroe-tech-notes.aomaro.com/en/posts/opencode-subagent-auto-call-issue AI開発 Enable AI agents to confirm browser displays in WSL and OpenCode environments. Automate UI verification using Playwright's headless browser. Tue, 21 Jul 2026 13:52:56 +0000 https://hiroe-tech-notes.aomaro.com/en/posts/wsl-opencode-ai-browser-check https://hiroe-tech-notes.aomaro.com/en/posts/wsl-opencode-ai-browser-check AI開発 This article explains how to define sub-agents in Codex and assign roles. It covers setting up agents for bug fixes and security reviews, model selection, and git management considerations. Mon, 20 Jul 2026 03:25:37 +0000 https://hiroe-tech-notes.aomaro.com/en/posts/define-codex-sub-agent-roles https://hiroe-tech-notes.aomaro.com/en/posts/define-codex-sub-agent-roles AI開発 Resend's free email service is easy to use with HTTP API and official libraries. Simplifies email sending in cloud environments. Suitable for personal use with free quotas. Wed, 15 Jul 2026 13:06:50 +0000 https://hiroe-tech-notes.aomaro.com/en/posts/resend-free-email-api https://hiroe-tech-notes.aomaro.com/en/posts/resend-free-email-api プログラミング Startup IT Infrastructure: Cloudflare + Akamai for cost-effective Rails + PostgreSQL setup. Ensuring scalability for under 10,000 yen monthly. Mon, 13 Jul 2026 15:07:55 +0000 https://hiroe-tech-notes.aomaro.com/en/posts/startup-cloudflare-akamai-infrastructure https://hiroe-tech-notes.aomaro.com/en/posts/startup-cloudflare-akamai-infrastructure インフラ The web in the AI era is evolving toward agent computing. MCP and Generative UI drive protocol changes, with WebMCP and local AI becoming crucial. Sat, 11 Jul 2026 06:38:04 +0000 https://hiroe-tech-notes.aomaro.com/en/posts/ai-era-web-evolution https://hiroe-tech-notes.aomaro.com/en/posts/ai-era-web-evolution AI開発 Implemented a blog translation feature with GPT-5.6 Sol. Slower than DeepSeekV4 but faster than 5.5, implemented with Cloudflare and Rails. Fri, 10 Jul 2026 15:20:55 +0000 https://hiroe-tech-notes.aomaro.com/en/posts/gpt-5-6-coding-experiment https://hiroe-tech-notes.aomaro.com/en/posts/gpt-5-6-coding-experiment インフラ Completed upgrading from Ruby 3.4 to 4.0.5 using OpenCode skills in 10 minutes. Automated the process from research to testing, and created a Rails skill as well. Wed, 08 Jul 2026 06:58:03 +0000 https://hiroe-tech-notes.aomaro.com/en/posts/opencode-ruby-4-0-5-upgrade https://hiroe-tech-notes.aomaro.com/en/posts/opencode-ruby-4-0-5-upgrade プログラミング The minimum server configuration for a personal blog costs ¥916/month using ConoHa VPS and Cloudflare. Development tools cost ¥4600/month, with AI usage being the main expense. Cost verification for stable operations. Tue, 07 Jul 2026 13:18:22 +0000 https://hiroe-tech-notes.aomaro.com/en/posts/minimal-blog-server-configuration https://hiroe-tech-notes.aomaro.com/en/posts/minimal-blog-server-configuration インフラ Utilize OpenCode's skills by saving SKILL.md in project or home directories. Describe name and description in YAML to enable automatic security checks before git commit. Easy to adjust rules in Japanese. Sun, 05 Jul 2026 04:38:51 +0000 https://hiroe-tech-notes.aomaro.com/en/posts/opencode-skills https://hiroe-tech-notes.aomaro.com/en/posts/opencode-skills AI開発 Switching from Codex to OpenCode Go, currently testing multiple models with a $10 monthly plan. Planning to switch between GLM-5.2 and DeepSeek V4 Flash based on difficulty. Sat, 04 Jul 2026 15:03:43 +0000 https://hiroe-tech-notes.aomaro.com/en/posts/opencode-go https://hiroe-tech-notes.aomaro.com/en/posts/opencode-go AI開発 Cloudflare's DNS protects servers by hiding the origin server's IP address and relaying traffic through edge locations via the proxy function to block cyber attacks. Fri, 03 Jul 2026 14:32:33 +0000 https://hiroe-tech-notes.aomaro.com/en/posts/cloudflare-dns https://hiroe-tech-notes.aomaro.com/en/posts/cloudflare-dns セキュリティ Kamal is a deployment tool for Ruby on Rails that automates Docker image generation and server deployment, suitable for small-scale systems. Thu, 02 Jul 2026 13:39:57 +0000 https://hiroe-tech-notes.aomaro.com/en/posts/ruby-kamal https://hiroe-tech-notes.aomaro.com/en/posts/ruby-kamal インフラ