Spring Boot works very well in production, but its defaults do not always fit PaaS constraints, tight memory, and real observability. These are the points worth reviewing before trusting the initial setup.
434 points on HN argue that Async Rust is still a glorified MVP. I replicated every concrete criticism against reproducible example code: executor leaks, cancellation safety, Pin hell. My conclusion is more uncomfortable than the original post.
489 + 506 points on HN. Bun ports to Rust and everyone has a take. I ran the benchmarks on my real stack before opening my mouth. The uncomfortable result: the underlying language matters less than the hype suggests.
I built a public lab with reproducible benchmarks to measure TypeScript 7 native preview against TypeScript 6 on real repos. The results are interesting, but the more useful story isn't the speedup: it's understanding when it matters, what breaks during migration, and how to test it without exposing private code.
I've burned myself with Rust and spent posts deep in TypeScript patterns. I'm the worst possible person to be objective here. I read every line anyway — and found three design decisions I think are wrong, and one that's genuinely brilliant.
Brutal diagnosis, concrete changes, and real metrics. Here's how I took a Next.js app from embarrassingly slow to 300ms FCP — no magic, no excuses, just actual work.
32 years in the dev trenches. Here I write what I learned, what I broke, and what nobody tells you in the tutorials.
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