Blog with news, tutorials, resources and other interesting content related to web development, design and technology.https://heroweb.devencontact@heroweb.dev (Hector Romero)contact@heroweb.dev (Hector Romero)https://heroweb.dev/en/en/how-to-buy-ai-sales-systemhttps://heroweb.dev/en/en/how-to-buy-ai-sales-systemDemos are the vendor's best case; what you're buying is the Tuesday-afternoon case. This final post is the checklist for seeing it before you pay: five contract-level questions, the red flags, a fair pilot design — and, since I sell these systems, the scenario where the honest answer is don't buy from me.Sun, 02 Aug 2026 00:00:00 GMTcontact@heroweb.dev (Hector Romero)AI for Saleshttps://heroweb.dev/en/en/speed-to-lead-aihttps://heroweb.dev/en/en/speed-to-lead-aiYou can't verify most AI sales claims without buying first. Speed to lead is the exception: how long a new lead waits for a real answer is a number, and you can measure yours this week with a stopwatch. I build these systems for a living, and this is the one part of my pitch you don't have to take on trust.Sat, 01 Aug 2026 00:00:00 GMTcontact@heroweb.dev (Hector Romero)AI for Saleshttps://heroweb.dev/en/en/what-an-ai-receptionist-actually-doeshttps://heroweb.dev/en/en/what-an-ai-receptionist-actually-doesVendors sell the term 'AI receptionist' on warmth. Here's the shift log instead: what one actually handles in a day for a clinic or a contractor, what a good handoff to a human looks like, and the four places where it breaks. I build these systems, so the failure modes come first.Fri, 31 Jul 2026 00:00:00 GMTcontact@heroweb.dev (Hector Romero)AI for Saleshttps://heroweb.dev/en/en/will-ai-replace-salespeoplehttps://heroweb.dev/en/en/will-ai-replace-salespeopleI build AI sales systems for a living, so read my answer with the suspicion it deserves: no, AI will not replace salespeople. It's already replacing something else — the part of sales that was never selling. Knowing which part is which is worth real money if you run a business.Thu, 30 Jul 2026 00:00:00 GMTcontact@heroweb.dev (Hector Romero)AI for Saleshttps://heroweb.dev/en/en/context-engineering-is-just-plumbinghttps://heroweb.dev/en/en/context-engineering-is-just-plumbingEveryone is selling context engineering as the new discipline. On my machine it's plumbing: four boring pipes that feed the agent, one drain that keeps junk out, and a valve that decides which pipe answers which question.Tue, 14 Jul 2026 00:00:00 GMTcontact@heroweb.dev (Hector Romero)https://heroweb.dev/en/en/cut-homepage-image-weight-astro-sharp-webphttps://heroweb.dev/en/en/cut-homepage-image-weight-astro-sharp-webpA static Astro site with 15KB of JavaScript was shipping 3.4MB of images. Here are the three failure modes that got past the image pipeline — the fallback-always-ships rule, the screenshot the optimizer never touched, and the boilerplate nobody referenced — and the 15 lines of Sharp that fixed all of it.Sun, 12 Jul 2026 00:00:00 GMTcontact@heroweb.dev (Hector Romero)https://heroweb.dev/en/en/git-no-merged-lies-squash-merged-brancheshttps://heroweb.dev/en/en/git-no-merged-lies-squash-merged-branchesMy cleanup list said eight branches were unmerged. Every single one had already shipped to production. The problem wasn't the branches. It was the question I was asking git.Sun, 12 Jul 2026 00:00:00 GMTcontact@heroweb.dev (Hector Romero)https://heroweb.dev/en/en/security-headers-static-sitehttps://heroweb.dev/en/en/security-headers-static-siteNo server does not mean nothing to configure. These are the four response headers I added to my static site, what each one blocks, and the one I left out on purpose.Sun, 12 Jul 2026 00:00:00 GMTcontact@heroweb.dev (Hector Romero)https://heroweb.dev/en/en/two-ai-agents-one-repo-git-worktreeshttps://heroweb.dev/en/en/two-ai-agents-one-repo-git-worktreesToday a second AI agent started up in a directory where another session was mid-work on a dirty branch. It was one git switch away from committing onto the wrong branch. Here's the boring, native fix.Sun, 12 Jul 2026 00:00:00 GMTcontact@heroweb.dev (Hector Romero)https://heroweb.dev/en/en/ai-coding-agent-overnighthttps://heroweb.dev/en/en/ai-coding-agent-overnightThe honest version of overnight AI development: the agent opens pull requests, a human merges. What ships by morning is reviewable drafts and done-when-green fixes — never an autonomous push to prod. Here's the setup that makes it real leverage instead of a liability.Sat, 11 Jul 2026 00:00:00 GMTcontact@heroweb.dev (Hector Romero)https://heroweb.dev/en/en/astro-5-to-6-migration-breaking-changeshttps://heroweb.dev/en/en/astro-5-to-6-migration-breaking-changesThe Astro 5 to 6 migration looked like a ten-minute security bump. Instead I hit three build failures back to back — every one of them in vendored theme code I never wrote. Here are the exact errors, the fixes, and why a themed site breaks where your own code doesn't.Sat, 11 Jul 2026 00:00:00 GMTcontact@heroweb.dev (Hector Romero)https://heroweb.dev/en/en/astro-seo-setup-most-portfolios-skiphttps://heroweb.dev/en/en/astro-seo-setup-most-portfolios-skipA title tag and a meta description aren't an SEO setup — they're the part every template already gives you. The plumbing that compounds (JSON-LD, canonicals that don't 404, hreflang that doesn't backfire, a clean sitemap) is what portfolios skip. Here's my full Astro SEO setup, real code included.Sat, 11 Jul 2026 00:00:00 GMTcontact@heroweb.dev (Hector Romero)https://heroweb.dev/en/en/claude-code-gbrain-contexthttps://heroweb.dev/en/en/claude-code-gbrain-contextEvery new session with an AI coding assistant starts blind — it can't remember why you rejected that approach three weeks ago. The fix isn't a bigger context window, it's persistent memory across sessions, layered. Here's the pattern: native memory for the live thread, a file index for durable facts, and a semantic second brain for everything older.Sat, 11 Jul 2026 00:00:00 GMTcontact@heroweb.dev (Hector Romero)https://heroweb.dev/en/en/validate-astro-blog-post-before-publishinghttps://heroweb.dev/en/en/validate-astro-blog-post-before-publishingPublishing a static Astro post is one merge away from live — which is exactly why the silent bugs are dangerous. A wrong lang, a canonical that 404s, a leaked cross-language link: none of them show up in your editor, only in the built HTML. Here's the checklist I run on dist/ before every post, scripts included.Sat, 11 Jul 2026 00:00:00 GMTcontact@heroweb.dev (Hector Romero)https://heroweb.dev/en/en/google-analytics-partytown-astrohttps://heroweb.dev/en/en/google-analytics-partytown-astroMy Google Analytics was installed, verified, and collecting absolutely nothing — with zero errors to warn me. The culprit was a Partytown default in my Astro theme that emits GA as a script the browser never runs. Here's the trap, and the one-line fix.Fri, 10 Jul 2026 00:00:00 GMTcontact@heroweb.dev (Hector Romero)https://heroweb.dev/en/en/ai-for-educatorshttps://heroweb.dev/en/en/ai-for-educatorsStop treating AI as a threat and start using it as your teaching copilot. A beginner-friendly guide to the strategies and tools that fold AI into your day-to-day work as an educator.Sat, 07 Jun 2025 00:00:00 GMTcontact@heroweb.dev (Hector Romero)https://heroweb.dev/en/en/best-ways-to-learn-to-codehttps://heroweb.dev/en/en/best-ways-to-learn-to-codeFrom online courses and bootcamps to YouTube channels and open-source code on GitHub: the main ways to learn programming, what each one is good for, and where you need to be careful.Fri, 06 Jun 2025 00:00:00 GMTcontact@heroweb.dev (Hector Romero)