iiinova — where your digital self keeps evolving

Ingvar Stepanyan @rreverser.com · 29/06/2025

Reposted by Roman Liutikov

Largest attack on Ukraine last night yet, but yeah, clearly Putin is open to peace and Trump will personally solve this in uh how long ago was that supposed to happen? www.france24.com/en/europe/20...

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Roman Liutikov @romanliutikov.com · 17/06/2025

drones drones multiple days in a row, funny how you get used to shots and explosions

Roman Liutikov @romanliutikov.com · 05/06/2025

Error boundaries have been supported in my implementation of server-side rendering almost from the beginning. Under the hood they are a try-catch, synchronously retrying the rendering with the captured error.

Roman Liutikov @romanliutikov.com · 05/06/2025

got React Context working across server and client components in my Clojure implementation of RSC while context is not supported in js implementations, in Clojure it aligns quite nicely with `binding` macro, so it would be a shame to not have this working across the boundary

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iirc Next also implements secure scope capturing, which is even more questionable, but at least the data is not exposed to the client. IMO all bound args should be stored on server, tied to user session.

How do you find the concept of partial application of server functions on the backend? I did implement it, but it fees like a huge footgun to me, given that bound values are exposed to a client.

Not great for perf, but probably negligible. EDN is a native wire format in Clojure, so developer experience here matters more than performance.

Interesting. In Clojure we use persistent data types to pass data around, and in my impl I’ve decided to embed the data (in EDN format) into RSC payload. This means double parsing Flight -> JSON -> embedded EDN -> Clojure types.

That’s what I do in Clojure impl as well. Both, client components and server functions have to be marked explicitly.

Roman Liutikov @romanliutikov.com · 01/06/2025

Nice! Any interesting observations on how RSC implementation in OCaml is different from JS?

Roman Liutikov @romanliutikov.com · 21/05/2025

rebuilt this React Router demo with my Clojure port of RSC, still wip but lots of stuff already working uix-rsc-movies.fly.dev

uix-rsc-movies.fly.dev

UIx RSC Demo

UIx RSC Demo page

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Roman Liutikov @romanliutikov.com · 19/05/2025

Yeah its primary use case is data transmission between services and/or clients written in Clojure. For JS target it’s json based, but otherwise its binary and should probably support async values, though it’s an exotic requirement (outside of RSCs if I might guess)

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Roman Liutikov @romanliutikov.com · 17/05/2025

I’ll be there sharing my experience with Clojure in WASM 👋

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Reposted by Roman Liutikov

Stefan Judis @stefanjudis.com · 15/05/2025

It was about time, wasn't it? 😅 👇 But now, with Firefox 138 all major browser engines support import attributes to import JSON from within your ECMAScript modules. 👇 ✅ Chromium: 123+ ✅ Safari: 17.2+ ✅ Firefox: 138+ (released 2w ago) PS. This syntax works in modern Node.js, too!

// Import Attributes
import data from "./resource.json" with { type: "json" };

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ooh now I get it, ok, I got an impression that RSC's model is not limited to server->client but wasn't sure since everywhere I read it's explicitly mentioning that interleaving is a no no

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afaik this is also doable in RSC, just that the server component must be passed as a prop to a client component

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Having server as a shell with client components at leaves makes a lot of sense, and it's easy to understand. I don't know electric well, but this demo demonstrates the idea electric.hyperfiddle.net/tutorial/dir... and I think it's a valid use cases as well.

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Roman Liutikov @romanliutikov.com · 13/05/2025

I'm working on Clojure port of RSC, more info in these blog posts romanliutikov.com/blog/towards... romanliutikov.com/blog/towards... not sure if it makes sense to differentiate between backend languages for rsc, but it's interesting to see how those concepts are shaped by different platforms

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Clojure port of React's server components is coming along nicely, this update brings streaming SSR, route prefetching and more romanliutikov.com/blog/towards...

romanliutikov.com

Towards React Server Components in Clojure, Part 2 | Roman Liutikov, Software Engineer

A journey on bringing React Server Components to Clojure JVM, as a part of UIx library

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Roman Liutikov @romanliutikov.com · 09/05/2025

Someone asked me to print a couple of pages recently, I spent an hour figuring out how to connect and then print on both sides of a paper correctly 🤦

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maybe that's my bubble, where do you get the data from?

is that mentality still holds true among devs who came to frontend in the past ~5 years? I'm under impression that folks just don't think about it anymore and use frameworks to get their jobs done

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GitHub - hyperfiddle/electric: Electric Clojure: full-stack differential dataflow for UI

yeah that's what I mean, should add an example with props passing, thanks I was thinking more about Electric Clojure framework here, which allows arbitrary composition github.com/hyperfiddle/...

github.com

Electric Clojure: full-stack differential dataflow for UI - hyperfiddle/electric

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thanks! good point, I'll redact that missinfo

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in this case with clojure/jvm the implementation becomes more straightforward because of shared memory concurrency available on JVM, + immutability it almost feels like ideal execution env for React's model

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Roman Liutikov @romanliutikov.com · 07/05/2025

thanks! Yeah, I wish there would be a formal spec for implementers, but anyway it's a real fun to see how tech in language X can be applied and transformed in language Y

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Started working on Clojure port of React’s Server Components. The first pass is done, things looking good so far, more details in the blog post romanliutikov.com/blog/towards...

romanliutikov.com

Towards React Server Components in Clojure, Part 1 | Roman Liutikov, Software Engineer

A journey on bringing React Server Components to Clojure JVM, as a part of UIx library

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Roman Liutikov @romanliutikov.com · 22/04/2025

holy moly, o3 is able to decompile a pile of generated JS from cljs source back into perfectly readable and working program, with a single minor issue the code uses a bunch of macros that generate lots of code: 150 LOC of cljs comes out as 450 LOC in js gist.github.com/roman01la/6b...

gist.github.com

OpenAI o3 decompiles JS generated from cljs sources back into ClojureScript code

OpenAI o3 decompiles JS generated from cljs sources back into ClojureScript code - decompiled.cljs

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Roman Liutikov @romanliutikov.com · 20/04/2025

Worked on a fun little project to make a coding sandbox out of Modal's serverless platform and VS Code Server. Modal is great: scales fast, has access to GPUs, usage based billing sandbox.learn-modern-clojurescript.com

Roman Liutikov @romanliutikov.com · 06/02/2025

how do you even find energy to write blog posts? :)

Roman Liutikov @romanliutikov.com · 06/02/2025

Spent half of the day working in Cursor Composer on a small simulation to test Goal Oriented Action Planning for game AI. Maybe I'm using it wrong, but the further I went, the slower it made progress. demo goap.roman01la.workers.dev code github.com/roman01la/mi...

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Reposted by Roman Liutikov

ading.dev @ading.dev · 31/01/2025

I got Linux running in a PDF file using a RISC-V emulator. PDFs support Javascript, so Emscripten is used to compile the TinyEMU emulator to asm.js, which runs in the PDF. It boots in about 30 seconds and emulates a riscv32 buildroot system. linux.doompdf.dev/linux.pdf github.com/ading2210/li...

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Roman Liutikov @romanliutikov.com · 31/01/2025

The hook is using resize observer to watch for element size changes, I don’t think it may cause performance issues.

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Does it work together with Cursive? Sounds like they could conflict 🤔

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It’s really sad that Cursive is one person closed source project

I have only two things in mind: 1. IDEs should be able to consume JS/TS from cljs projects to provide autocompletion and docs, similar to how Java is treated currently in Cursive for example 2. Google Closure compiler lagging behind is annoying

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state-of-clojurescript.com

State of ClojureScript 2024 survey results state-of-clojurescript.com

State of ClojureScript 2024 Survey

Roman Liutikov @romanliutikov.com · 27/01/2025

Building a complex rich app? No need for it. A website with dynamic islands? Do you *really* need all that complexity?

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Roman Liutikov @romanliutikov.com · 27/01/2025

The whole “use next/ssr” drama is so annoying. Vercel is not doing any good not to the community nor to businesses, sigh www.reddit.com/r/reactjs/s/...

reddit.com

From the reactjs community on Reddit: X/BlueSky: React recently feels biased against Vite and SPA

Posted by Jimberfection - 94 votes and 58 comments