Wrote a quick post about where @rari.build's streaming is at now. TTFB is 1ms vs Next.js at 12ms. First content, last byte, and throughput all still tie 🏁
rari's Streaming TTFB is Now 11x Faster Than Next.js. First Content Still Ties.
I ran the /stream bench after official Fizz and an immediate HTML shell flush. The result: 1ms TTFB versus Next.js at 12ms, with first content and throughput still tied.
rari.build
rari 0.15 is out: the alignment release. The runtime now speaks React's Flight (RSC + actions) and Fizz (HTML/SSR) on Rust + V8, instead of an "RSC-shaped" stack.
rari 0.15: React Flight and Fizz on Rust + V8
rari 0.15 is the alignment release: official React Flight for RSC and server actions, Fizz for HTML SSR and streaming, hosted on Rust with embedded V8. Experimental use cache ships as a follow-on.
rari.build
Huge thank you to @namespacelabs.com for sponsoring @rari.build as part of their OSS program. Can't overstate how much we're going to benefit from faster GitHub Actions runners
I wrote a technical deep dive on getting @rari.build's throughput to 67x that of Next.js with response caching in Rust, while letting V8 stay idle. The blog post runs on rari itself, with @shiki.style, MDX and Mermaid charts.
Building rari with rari: Dogfooding to 67x Faster Performance
I built rari.build using rari itself. The result: 0.12ms server-side processing, sub-500MB memory, and a server that handled the Hacker News front page without scaling up.
rari.build
1000 stars! Couldn't be more proud of @rari.build, and thrilled at the reception it's been getting lately
GitHub - rari-build/rari: rari: High-performance React Server Components framework powered by a Rust runtime, delivering 9.1x faster response times (0.43ms vs 3.92ms) and 46.5x higher throughput (74,6...
rari: High-performance React Server Components framework powered by a Rust runtime, delivering 9.1x faster response times (0.43ms vs 3.92ms) and 46.5x higher throughput (74,662 vs 1,605 req/sec) th...
github.com
Excited to share that I'll be speaking at @reactsummit.gitnation.org in Amsterdam this June! I'll be talking about rari and the technical decisions behind achieving 46.5x throughput and 9.1x faster response times than Next.js. Register for free via my badge to watch the stream live #ReactSummit
Check out my badge & claim your free React Summit 2026 remote ticket!
Join 10k engineers worldwide at React Summit 2026 and meet 50 top speakers at June 11 - 15, 2026
gitnation.com
GitHub Sponsors is live for rari — React Server Components on a Rust runtime. 46.5x faster than Next.js. 74K req/sec. Sub-ms latency. 53% smaller bundles. Survived HN front page at ~400MB memory. I want to go full-time on this. Help me prove open source doesn't need a corporate budget to win.
Sponsor @skiniks on GitHub Sponsors
Creator of rari, a Rust-powered React Server Components framework delivering 46.5x higher throughput and 9.1x faster response times than Next.js. Building the future of high-performance web develop...
github.com
Huge thanks to @neon.com for sponsoring @rari.build! Looking forward to what we can cook up with supercharged React Server Components and Serverless Postgres.
rari hit the front page of Hacker News!
Show HN: rari, the rust-powered react framework | Hacker News
news.ycombinator.com
POV: You told developers they had to choose between performance and @react.dev. We said no. 0ms Total Blocking Time. On mobile Slow 4G. With React Server Components.
