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Jason Miller

@developit.dev
6.1K followers 251 following 285 posts

Platform DX at Shopify. Created #Preact. Do more with less. #JavaScript #PreactJS #React #Frontend #DeveloperExperience #OSS #Coffee #Foxes #Drumming #Metalhead

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Jason Miller @developit.dev · 17/03/2026
Figured I'd open source the little preact+signals mastodon client I wrote a few years ago, in case the code is useful to folks. It's called Mastodawn.com - a streaming, offline-first installable Mastodon web app that weighs under 100kb. github.com/developit/mastodawn
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Jason Miller @developit.dev · 18/10/2025
And this
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Jason Miller @developit.dev · 18/10/2025
Just gonna leave this here
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Jason Miller @developit.dev · 05/07/2025
I never ended up publicizing it or open sourcing the code, but mastodawn.com is a streaming, offline-first installable Mastodon web app that weighs under 100kb.
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Jason Miller @developit.dev · 14/04/2025
ok so I was going to reply with a message about how this is due to the way esm.sh resolves dependency versions to URLs at first request time, but it turns out that actually changed at the end of last year and this all just works perfectly now! jsfiddle.net/developit/2v...
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Jason Miller @developit.dev · 02/03/2025
the google tasks API is fun
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Jason Miller @developit.dev · 31/01/2025
Spent a bit of time today maintaining the web-worker package, which brings the web's Worker API to Node: github.com/developit/we... It now supports importScripts() and works in more bundlers + Node versions.
screenshot showing source code for a Web Worker instantiation, with the main thread code on the left and worker thread code on the right. The code is from the first example in the linked project readme.
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Jason Miller @developit.dev · 10/01/2025
Preact Signals just got a huge performance boost: Signals rendered as text/props & effects only "pull" as fast as needed for rendering. Since computeds run as-needed, they now only re-run as often as their downstream DOM output can be painted. H/t to @jovidecroock.com for making this happen.
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Jason Miller @developit.dev · 09/01/2025
First round of vibes.tube deliveries are done!
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Jason Miller @developit.dev · 05/01/2025
Update: got my first shipment. These signs are soooo sick
Fox shaped neon sign Fox shaped neon sign
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Jason Miller @developit.dev · 02/01/2025
I've been really interested in neon lights for my office for a while, so I decided to start selling them. I'm launching the store today with a 10% off promo: vibes.tube/discount/GLO...
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Jason Miller @developit.dev · 01/01/2025
Or this shippo + kirara figure
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Jason Miller @developit.dev · 31/12/2024
People be hoarding anime merch 😤 can't buy ハラキリトラぬい (harakiri tora plush) anywhere
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Jason Miller @developit.dev · 31/12/2024
What if you could use Radix in Preact without compat? And what if Radix itself became 60% smaller? And faster. What if you could have all of Radix and Preact and a router... for less than half the original size of Radix? or of React?
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Jason Miller @developit.dev · 31/12/2024
popular "server rendered" (mostly static) site built with the latest Next.js + RSC... yikes
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Jason Miller @developit.dev · 30/12/2024
Sign above washroom: Have a nice poo
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Jason Miller @developit.dev · 30/12/2024
Update
Caution dog vomit sign
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Jason Miller @developit.dev · 29/12/2024
From the same seller
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Jason Miller @developit.dev · 29/12/2024
Will Smith as Shrek on a doormat
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Jason Miller @developit.dev · 29/12/2024
 cabbage leaf duvet
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Jason Miller @developit.dev · 19/11/2024
to illustrate, here is the original code (prior to your changes) minimally refactored to use signals. It has the same performance characteristics as your improved version without requiring split components. (that said, I'd still 100% split the components as you did) carbon.now.sh?bg=rgba%2816...
a screenshot of the JSX component code available at the link
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Jason Miller @developit.dev · 15/11/2024
no. bad claude. we don't tell lies. apologize to your brother.
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Jason Miller @developit.dev · 15/11/2024
quick someone make this a real anime
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Jason Miller @developit.dev · 26/08/2023
this beer is fantastic, and obviously the best branding ever
two cans of Mackinnon Brothers RED FOX Ale
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