Lightnews — Scholar-powered news

Josh Vlk @vlkpack.com · 20h

If I don't write things down they will stay in my brain and keep me up all night. I dreamed last night that I was building out a queue with Effect to handle tracking calls.

1 2

Josh Vlk @vlkpack.com · 20h

I keep obsidian open while I'm at conferences. It helps me unload all the ideas in a way where I can revisit them later.

1

Josh Vlk @vlkpack.com · 1d

Mark has been putting a crazy amount of work into this. I'm very excited that this is close to being released!

Mark Erikson @acemarke.dev · 1d

_Very_ excited to announce that I've posted the 3 Immer perf PRs (tweaks, finalization cbs, array overrides)! Combined they give 30-90% speedup vs v10, avg of 57%!

Still some more potential improvements to investigate, and have to discuss release strategy:

github.com/immerjs/imme...

Immer perf appears to have gotten worse over time, based on updated benchmarks · Issue #1152 · immerjs/immer

Summary I've put together some updated benchmarks for various versions of Immer and other immutable update libs vs a hand-written reducer, especially since the current docs at https://immerjs.githu...

github.com

1 11

Josh Vlk @vlkpack.com · 1d

Safe array access, null safety, no implicit conversions, nominal typing, and exhaustiveness checking. These are just a few of the things that ReScript does right.

https://youtu.be/26jUYi6TiMw?si=jWUcGULDlpOtGSMq

1

Reposted by Josh Vlk

sabine 🐫🦀 / "use ocaml"; @sabine.sh · 2d

it's quite peaceful over here

Kermit the Frog sipping tea meme with text reading 'PATTERN MATCHING ELIMINATES ENTIRE CLASSES OF BUGS' at the top and 'BUT THAT'S NONE OF MY BUSINESS' at the bottom

2 11

Josh Vlk @vlkpack.com · 1d

The distracted boyfriend meme. He's typescript looking at "any" while "rescript" is his girlfriend.

2

Josh Vlk @vlkpack.com · 1d

Have you tried rewriting it in Rescript?

1

Josh Vlk @vlkpack.com · 1d

If ya ain't got ADTs my anaconda don't want none.

sabine 🐫🦀 / "use ocaml"; @sabine.sh · 2d

sorry not sorry

Jurassic Park meme showing Jeff Goldblum's character standing while two other characters examine a large pile of dirt. Top text reads 'THERE'S NO TRACE OF ALGEBRAIC DATATYPES' and bottom text reads 'SO THEY'RE SUFFERING FROM "STRINGS EVERYWHERE"'. The meme jokes about programming languages without algebraic data types relying heavily on string-based data handling.

2

Josh Vlk @vlkpack.com · 1d

Frontend devs should be required to test and build on real devices with throttled networks.

I've seen too many cases of code that doesn't handle slow networks or limited CPUs.

Josh Vlk @vlkpack.com · 2d

type data = | Loading | Error | Empty | Content(array<string>)

It's so much better.

2

Josh Vlk @vlkpack.com · 2d

I've hit the point where if I don't have variant/sum types I can't take the code seriously.

If I have to see another line of code checking data.loading, data.error, data.content.length > 1 I will scream internally.

1 4

Josh Vlk @vlkpack.com · 2d

I've found the HM type system to be perfect for what I want out of types. Plus once you understand it there are many languages that use it, or something similar, like Ocaml, Rust, ReScript, Gleam, etc...

2 1 5

Josh Vlk @vlkpack.com · 2d

Using types to represent business logic speeds up development, allows for large teams to understand the code better, and enforces that all possible states are handled correctly. Not just for existing logic, but also for new logic.

Clear types like this can also help AI agents gain context.

Using variant types in ReScript to represent business logic

Types can be great at creating documentation to know what parameters are used in function, what a...

dev.to

1 1

Josh Vlk @vlkpack.com · 2d

"ReScript gave me something I didn’t expect: calm. The “if it compiles, it runs” kind of calm you feel in Rust or Haskell — but inside the JavaScript ecosystem."

https://dev.to/cristiansifuentes/tired-of-typescript-why-rescript-finally-clicked-for-me-narrative-2d27

3

Josh Vlk @vlkpack.com · 2d

Remix 3 exists because not everyone wants to use React.

Josh Vlk @vlkpack.com · 2d

Sure is! A stoned hackathon with only vibe coding would be hilarious.

1

Josh Vlk @vlkpack.com · 2d

"TypeScript improved JS by adding types; ReScript improves types and then targets JS. That shift unlocks soundness, ADTs, and a simpler mental model for data flow — the things that tame large frontends."

ReScript in 2025 — Fast, Sound, and Ready for React (Hybrid Guide)

ReScript in 2025 — Fast, Sound, and Ready for React (Hybrid Guide) Highlights ...

dev.to

4

Josh Vlk @vlkpack.com · 3d

Rescript is truly a game changer for web development. Types are great, but types shine when you can rely on a sound type system, typed errors, and easy to use variant types.

ReScript 2025 — The Top JavaScript Alternative (Tech Deep Dive)

ReScript 2025 — The Top JavaScript Alternative (Tech Deep Dive) TL;DR — ReScript gives...

dev.to

1 2

Josh Vlk @vlkpack.com · 3d

I think the context type doesn't exist if you don't set it. You can't have QueryClient | undefined unless you somehow assign that value to the context.

2

Josh Vlk @vlkpack.com · 3d

Twice in a row I've been the first to die playing call of Cthulhu one shots. I like to put myself in danger and going insane is part of the fun!

1

Josh Vlk @vlkpack.com · 5d

I still have questions about how well it will scale, or how it would work with large teams that have devs with varying levels of experience, but it has my attention.

1

Josh Vlk @vlkpack.com · 5d

The @remix.run team accomplished their goal of climbing up the mountain, starting from a base of web standards like events and Dom nodes, and built on those until they had a framework.

1 1

Josh Vlk @vlkpack.com · 5d

I liked it! It deviates from the current component based framework patterns and truly feels like they rebuilt things from the ground up for the modern web.

1 2

Josh Vlk @vlkpack.com · 5d

I have Remix 3!

3

Josh Vlk @vlkpack.com · 6d

Hello from Remix Jam! I'm excited to learn what Remix V3 will be!

A picture of me wearing my rescript shirt in front of a remix jam sign.

Micheal Jackson on stage kicking off the event.

1