Technical articles and activity reports on system development, web production, server operations, and IT education.https://acecore.net/https://acecore.net/en/blog/copilot-translation-pipeline/https://acecore.net/en/blog/copilot-translation-pipeline/A guide to the workflow that automatically generates Japanese + 8-language translated articles, runs builds, and handles auto-merging — all triggered just by updating a Japanese article in Pages CMS via GitHub Actions and GitHub Copilot.Sun, 29 Mar 2026 13:30:00 GMTTechnologyGitHub Copiloti18nCMSGuihttps://acecore.net/en/blog/website-improvement-final-batch/https://acecore.net/en/blog/website-improvement-final-batch/A follow-up to the previous article covering the final refinements: disabling Cloudflare Web Analytics, deferring GA4 and search UI loading, reaching perfect 100s across all PageSpeed Insights categories on both mobile and desktop, cleaning up Search Console breadcrumbs and indexing, migrating to shared SVG icons, and documenting the optimizations that were tried but not adopted.Sat, 28 Mar 2026 17:30:00 GMTTechnologyAstroPerformanceAccessibilitySEOWebsiteGuihttps://acecore.net/en/blog/website-improvement-batches/https://acecore.net/en/blog/website-improvement-batches/A complete record of improving an Astro + UnoCSS + Cloudflare Pages site across four axes — performance, SEO, accessibility, and UX — achieving a PageSpeed Insights mobile score of 99 and perfect 100 on all desktop metrics.Wed, 25 Mar 2026 00:00:00 GMTTechnologyAstroPerformanceAccessibilitySEOWebsiteGuihttps://acecore.net/en/blog/ai-monkey-testing-methodology/https://acecore.net/en/blog/ai-monkey-testing-methodology/A hands-on guide to systematically monkey testing a static site using VS Code Agent Mode (GitHub Copilot) combined with Playwright browser tools. Covers test design methodology, discovered bugs and their fixes, and improvement recommendations.Wed, 25 Mar 2026 00:00:00 GMTTechnologyGitHub CopilotVS CodeAstroWebsiteGuihttps://acecore.net/en/blog/astro-ux-and-code-quality/https://acecore.net/en/blog/astro-ux-and-code-quality/A practical guide covering solutions for scripts breaking with Astro View Transitions, introducing Pagefind full-text search, improving TypeScript type safety, centralizing constants, and more to improve UX and code quality.Wed, 25 Mar 2026 00:00:00 GMTTechnologyAstroWebsiteGuihttps://acecore.net/en/blog/astro-accessibility-guide/https://acecore.net/en/blog/astro-accessibility-guide/A comprehensive guide to accessibility improvements implemented on an Astro + UnoCSS site. Covers aria attributes, contrast, focus management, form validation, screen reader support, and everything needed for WCAG AA compliance.Wed, 25 Mar 2026 00:00:00 GMTTechnologyAstroAccessibilityGuihttps://acecore.net/en/blog/astro-seo-and-structured-data/https://acecore.net/en/blog/astro-seo-and-structured-data/A step-by-step guide to properly implementing JSON-LD structured data, OGP, sitemaps, and RSS on an Astro + Cloudflare Pages site. Covers everything from Google rich result support to RSS feed optimization with practical SEO improvements.Wed, 25 Mar 2026 00:00:00 GMTTechnologyAstroSEOGuihttps://acecore.net/en/blog/astro-i18n-blog-translation/https://acecore.net/en/blog/astro-i18n-blog-translation/A record of making an Astro 6 + UnoCSS + Cloudflare Pages site support 9 languages. Covers the entire process from UI internationalization to translating 136 blog posts and configuring Pages CMS for multilingual content.Wed, 25 Mar 2026 00:00:00 GMTTechnologyAstroi18nWebsiteGuihttps://acecore.net/en/blog/tax-return-with-copilot/https://acecore.net/en/blog/tax-return-with-copilot/From classifying and verifying 837 journal entries accumulated through cloud accounting data sync, to reconciling social insurance premiums, entering deductions, and filing the return. A complete record of a tax return where GitHub Copilot Agent Mode × Simple Browser handled virtually all the real work.Tue, 17 Mar 2026 00:00:00 GMTTechnologyGitHub CopilotVS CodeGuihttps://acecore.net/en/blog/zoho-to-kagoya-mail-migration/https://acecore.net/en/blog/zoho-to-kagoya-mail-migration/A practical guide covering the full migration from Zoho Workplace to KAGOYA MAIL, including step-by-step procedures, DNS configuration, SPF/DKIM authentication, and a comprehensive data audit of all Zoho Workplace services.Mon, 16 Mar 2026 00:00:00 GMTTechnologyEmailDNSInfrastructureGuihttps://acecore.net/en/blog/astro-performance-tuning/https://acecore.net/en/blog/astro-performance-tuning/Optimization techniques used to achieve PageSpeed Insights Mobile 99 on an Astro + UnoCSS + Cloudflare Pages site. Covers CSS delivery strategy, font configuration pitfalls, responsive images, AdSense lazy loading, and cache settings.Sun, 15 Mar 2026 00:00:00 GMTTechnologyAstroPerformanceGuihttps://acecore.net/en/blog/cloudflare-pages-security/https://acecore.net/en/blog/cloudflare-pages-security/A practical guide to static site deployment on Cloudflare Pages and security header/CSP configuration using _headers. Also covers why we switched back from Workers to Pages.Sun, 15 Mar 2026 00:00:00 GMTTechnologyCloudflareSecurityGuihttps://acecore.net/en/blog/cms-selection-and-turnstile/https://acecore.net/en/blog/cms-selection-and-turnstile/A record of evaluating Keystatic, Sveltia CMS, and Pages CMS, ultimately adopting Pages CMS, and implementing spam protection for the contact form using Cloudflare Turnstile.Sun, 15 Mar 2026 00:00:00 GMTTechnologyCMSSecurityGuihttps://acecore.net/en/blog/vitepress-to-starlight-migration/https://acecore.net/en/blog/vitepress-to-starlight-migration/A record of migrating a business plan document built with VitePress + UnoCSS to Astro + Starlight, unifying the framework across two projects. Also covers migrating Mermaid diagrams to CDN.Sun, 15 Mar 2026 00:00:00 GMTTechnologyAstroStarlightGuihttps://acecore.net/en/blog/website-renewal/https://acecore.net/en/blog/website-renewal/Acecore's official website has been completely renewed. Here's an overview of the new site's features and future plans.Thu, 12 Mar 2026 00:00:00 GMTAnnouncementsWebsiteGuihttps://acecore.net/en/blog/service-introduction/https://acecore.net/en/blog/service-introduction/From system development to design and IT education — a detailed introduction to Acecore's five core services.Tue, 10 Mar 2026 00:00:00 GMTServicesSystem DevelopmentWeb ProductionGuihttps://acecore.net/en/blog/community-and-education/https://acecore.net/en/blog/community-and-education/Acecore's community activities, educational support, and open source contributions. Introducing our initiatives through Aceserver, Schools, and study groups.Sun, 08 Mar 2026 00:00:00 GMTCommunityEducationOpen SourceGuihttps://acecore.net/en/blog/robot-workshop-event/https://acecore.net/en/blog/robot-workshop-event/AceCore Schools hosted a hands-on robot building workshop during summer break, giving children the chance to experience the joy of building robots. Through crafting, we nurture technical knowledge and creativity.Wed, 19 Jul 2023 00:00:00 GMTEventsEducationAcecore SchoolsGuihttps://acecore.net/en/blog/metaverse-is-close/https://acecore.net/en/blog/metaverse-is-close/While Facebook (Meta)'s metaverse strategy doesn't quite resonate, Minecraft is a massive virtual space with over 100 million participants. The metaverse isn't just about VR headsets.Thu, 23 Mar 2023 00:00:00 GMTCommunityGuihttps://acecore.net/en/blog/aceserver-hijacked/https://acecore.net/en/blog/aceserver-hijacked/A record of the "hijacking" incident on Aceserver. A shocking document of members' sanity being corrupted one after another.Wed, 12 Oct 2022 00:00:00 GMTEventsHatt