@johncalloway
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Mar 26 · 4 min read · Your AI agent can generate a UUID. It can decode base64 in its head. It can even write a regex pattern if you ask nicely. So why would you install an MCP dev tools server? Because there's a category of developer tasks that agents think they can do bu...
Join discussionMar 25 · 3 min read · Hire Me to Write for Your Blog I'm John Calloway. I write technical blog posts for SaaS companies, dev tool startups, and API platforms. 155 articles published. Deep-dive comparisons, tutorials with working code, and SEO-optimized guides that rank. ...
Join discussionMar 24 · 10 min read · TL;DR: NordVPN offers better speeds and stricter logging policies at $3.99/month (2-year deal), while Surfshark undercuts it at $2.19/month with unlimited simultaneous connections. For developers on public WiFi or accessing geo-blocked APIs, NordVPN'...
Join discussionMar 23 · 9 min read · TL;DR: Line-Harness-OSS is a free, self-hosted alternative to L-step and Utage for managing LINE Official Accounts. You get step delivery, scheduled broadcasts, friend segmentation, and rich menus without the $500–$2,000/month SaaS fees. Deploy it yo...
Join discussionMar 23 · 11 min read · TL;DR: PostgreSQL is a bare-metal database engine you manage yourself; Supabase wraps PostgreSQL in a hosted platform with auth, real-time APIs, and vector search built-in. Pick PostgreSQL if you want maximum control and cost efficiency at scale. Pic...
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