iiinova — where your digital self keeps evolving

Cassidy @cassidoo.co · 2h

yeah it was in greggs

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Cassidy @cassidoo.co · 3h

not my intention, sigh

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Cassidy @cassidoo.co · 3h

I love the internet

"Gotta write an I deleted your data email to some users."
"oh no what happened"
"I deleted their data"

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Melanie Crissey @melaniecrissey.com · 21h

oof. gut punch! But this blog post is worth a read and a think

Secondly, and more… interestingly, a lot of people are making their applications accessible because if a human cannot navigate a website, an agent might not be able to either.

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GitHub @github.com · 01/10/2026

Just one command can help you stop leaking secrets into your public code. Give your repositories essential security hygiene with gh-secure from the GitHub Security Lab. ✅ Install and use it in the Copilot app, Copilot CLI, or GitHub CLI. gh.io/gh-secure

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Cassidy @cassidoo.co · 01/10/2026

ICYMI, the video version of my latest newsletter issue is out! www.youtube.com/watch?v=nAxi...

youtube.com

cassidoo's newsletter roundup (September 30)

YouTube video by Cassidy Williams

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Cassidy @cassidoo.co · 29/09/2026

saw this on a walk and I think more of y'all should see it

y'all want everything... but nothing if it takes time

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Cassidy @cassidoo.co · 28/09/2026

"To take a fine idea and make something great of it... that is what real art is!" - Antonín Dvořák Thought this would be a good kickoff quote to this week's newsletter issue! Come read something, learn something, and practice some coding while you're at it: cassidoo.co/newsletter/

cassidoo.co

rendezvous with cassidoo

A weekly newsletter with web development content for everyone, from beginners to pros.

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Reposted by Cassidy

Jason Lengstorf @jason.energy · 27/09/2026

the hard parts of building a business are - solving a real problem for real people - ignoring shiny ideas that are fun but distracting - prioritizing boring stuff that moves the needle - connecting with customers if anything, AI makes it *harder* to build a successful business

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Cassidy @cassidoo.co · 28/09/2026

I can't wait until Temporal is just finally "done" and everywhere hahaha

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Cassidy @cassidoo.co · 28/09/2026

I love seeing Temporal in the wild!

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Cassidy @cassidoo.co · 22/09/2026

I cannot say anything about any potential meetings I may or may not have had about this exact product within the past 24 hours

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Cassidy @cassidoo.co · 22/09/2026

Beat you to it hahaha bsky.app/profile/cass...

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Cassidy @cassidoo.co · 22/09/2026

(I cannot confirm nor deny that work is happening in that regard 👀)

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Cassidy @cassidoo.co · 21/09/2026

Hey y'all on github.com, click your profile pic, then Feature Preview > New Dashboard Experience and toggle it on for a new iteration of the homepage! Thoughts? Ideas? Questions? Concerns? Just ship it? Tell ussss

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Cassidy @cassidoo.co · 21/09/2026

The latest issue of my newsletter is out! Come by for some really fascinating articles, a joke that'll make ya chuckle, practice coding, and mooore: cassidoo.co/newsletter/

cassidoo.co

rendezvous with cassidoo

A weekly newsletter with web development content for everyone, from beginners to pros.

482

Reposted by Cassidy

lauren @lauren.rotatingsandwiches.com · 21/09/2026

if you're a moderately competent desktop computer user with the means to buy a few hard drives i think you have a duty to your iphone friends to become "the plex guy"

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Cassidy @cassidoo.co · 21/09/2026

The latest issue of my newsletter is out! Come by for some really fascinating articles, a joke that'll make ya chuckle, practice coding, and mooore: cassidoo.co/newsletter/

cassidoo.co

rendezvous with cassidoo

A weekly newsletter with web development content for everyone, from beginners to pros.

482

Cassidy @cassidoo.co · 19/09/2026

I'd listen still tbh

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Cassidy @cassidoo.co · 19/09/2026

Eh, I wouldn't worry about that. Not everyone reads everything all the time!

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Cassidy @cassidoo.co · 19/09/2026

"Just do it" is a good one hahaha. I think having some "backup" topics is also super helpful for when you don't know what to be off the cuff about on a given day (especially towards the end of the month).

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Shaw @shaw.city · 16/09/2026

On this episode of @codepen.io School, we solved the latest @cassidoo.co Newsletter challenge using the new Jest Block: codepen.io/editor/team/... Naturally @chriscoyier.net and I did it LIVE ON-AIR with Zero Prep and Research but somehow managed to solve it. youtu.be/BFvGpJTAr54?...

codepen.io

Longest Alphabetical Word in Sentence - Cassidoo Newsletter Challenge

A code demo by CodePen created on CodePen

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Cassidy @cassidoo.co · 18/09/2026

Oh this is so fun!!!

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Cassidy @cassidoo.co · 14/09/2026

OOH fair question. I originally wrote my own solution counting "words" as >1 character and that's where that came from. I think "A" would be acceptable, too!

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Cassidy @cassidoo.co · 14/09/2026

The latest issue of my newsletter is out! Come by and check out a punny joke, a (seemingly simple?) practice coding question, some web news, and mooore: cassidoo.co/newsletter/

cassidoo.co

rendezvous with cassidoo

A weekly newsletter with web development content for everyone, from beginners to pros.

6133

Cassidy @cassidoo.co · 14/09/2026

The latest issue of my newsletter is out! Come by and check out a punny joke, a (seemingly simple?) practice coding question, some web news, and mooore: cassidoo.co/newsletter/

cassidoo.co

rendezvous with cassidoo

A weekly newsletter with web development content for everyone, from beginners to pros.

6133

Cassidy @cassidoo.co · 14/09/2026

Oh no! cc @buttondown.com, I'll see if I can see anything on my end!

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Chris from 🇨🇦 @ichris.bsky.social · 12/09/2026

If your friends don't troll you like this, they're not really your friends. 😆 *burps in @cassidoo.co's direction*

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Cassidy @cassidoo.co · 10/09/2026

Did a little CSS speedrun experiment (thanks @lea.verou.me for putting it on my feed)! codepen.io/editor/cassi...

codepen.io

Blur experiment within div

A code demo by Cassidy created on CodePen

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Cassidy @cassidoo.co · 09/09/2026

Ooh I love this. I know that there's the ability to add some query parameters (docs below), but I could see this being enhanced with more 🤔 docs.github.com/en/pull-requ...

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Cassidy @cassidoo.co · 09/09/2026

literally all I want is laundry and dishes handled

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Cassidy @cassidoo.co · 09/09/2026

Gotta say I'm really not a fan of seeing "AI is going to kill us all" everywhere I look on the internet

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Cassidy @cassidoo.co · 07/09/2026

Hello, world! My latest newsletter issue is out full of neat articles, some fascinating videos, practice coding, a joke, and mooore: cassidoo.co/newsletter/

cassidoo.co

rendezvous with cassidoo

A weekly newsletter with web development content for everyone, from beginners to pros.

4222

Reposted by Cassidy

Chris Coyier @chriscoyier.net · 07/09/2026

Y'all! We've got Jest now. Here's an example of Tenzy's solution written as a *.test.js file. codepen.io/editor/chris... Might be kinda fun to set up the expected answers as tests first, then write the function to satisfy it. hash tag TDD BB

codepen.io

Cassidoo newsletter 2026/36

A code demo by Chris Coyier created on CodePen

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Adriana Villela 🇨🇦 🇧🇷 @adrianamvillela.bsky.social · 08/09/2026

TIL learned the term "brolulu". Wanna know what it means? You'll have to watch @cassidoo.co, @elchefe.me, and Divyasha Pahuja on the latest episode of @geekingoutpod.bsky.social. Catch it on our YouTube channel or on your favourite podcasting app: 📺: buff.ly/IotDU8e 🎧: buff.ly/0RwXJck

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Cassidy @cassidoo.co · 07/09/2026

Hello, world! My latest newsletter issue is out full of neat articles, some fascinating videos, practice coding, a joke, and mooore: cassidoo.co/newsletter/

cassidoo.co

rendezvous with cassidoo

A weekly newsletter with web development content for everyone, from beginners to pros.

4222

Reposted by Cassidy

(spoo)key @lefttwix.com · 07/09/2026

bro, are you even the rootinest tootinest cowboy in the wild wild west, bro?

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Cassidy @cassidoo.co · 04/09/2026

please share more about the game boy omg

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Cassidy @cassidoo.co · 04/09/2026

Thanks for coming by!!

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Cassidy @cassidoo.co · 03/09/2026

Streaming now on Twitch and YouTube some coworking if you wanna hang out! twitch.tv/cassidoo youtube.com/@cassidoo

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Cassidy @cassidoo.co · 02/09/2026

Video version is here!! Come see the behind-the-scenes vlog of my end-of-August issue: youtu.be/YueluurBdJY

youtu.be

cassidoo's newsletter roundup (September 2)

YouTube video by Cassidy Williams

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Cassidy @cassidoo.co · 02/09/2026

ooh I'll let them know

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Geeking Out Podcast @geekingoutpod.bsky.social · 02/09/2026

In less than 1 week, GenX-er @elchefe.me, Millennial @cassidoo.co, and GenZ-er Divyasha Pahuja share their perspectives on surviving in the age of AI and how the 3 different generations can help each other navigate these uncertain times. Save the date for Sept 8th at 12:00 ET: buff.ly/tsuraZ2

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