iiinova — where your digital self keeps evolving

Tyler Williams @coolsoftware.dev · 11/09/2026

weeeeeeeeeeeeeeeeeeeeeeeeeeeeee

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Tyler Williams @coolsoftware.dev · 10/09/2026

oops I downloaded Unity again.

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Tyler Williams @coolsoftware.dev · 11/08/2026

Snagged tickets to summer Olympics ‘28 volleyball.

Screenshot of Olympics 2028 ticket summary for men’s and women’s preliminary volleyball

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Tyler Williams @coolsoftware.dev · 09/06/2026

Just thinking about this for no reason in particular

Four panel screenshot of classic Simpsons episode where crowd is booing Mr burns. He asks Smithers “are they booing me?” Who says “uh no. They’re saying boo-urns, boo-urns”. Burns asks the crowd if they’re saying boo or boo urns. The crowd boos. Coleman says “I was saying boo urns”.

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Tyler Williams @coolsoftware.dev · 13/05/2026

Yatsi can finally return values from functions. And recursion just sort of works out of the box (I do have to add some call stack limits just in case): No real closures yet. Once I add that, I'll start working on some fun visualizations for how that all works under the hood.

An image of the Yatsi TypeScript interpreter playground, showing correct output for some console.log functions and a fibonacci calculation function to demonstrate return values, arguments, and recursion.

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Tyler Williams @coolsoftware.dev · 13/05/2026

Yatsi can run parameter-less functions that return `undefined` now:

A screen shot showing some TypeScript code that calls a function which calls console log. The source has the function body, and we see an expected output, with a status of "PASS" in the corner.

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Tyler Williams @coolsoftware.dev · 12/05/2026

Having a blast with more compiler visualizations. This one is helping me understand backpatching:

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Tyler Williams @coolsoftware.dev · 04/05/2026

Working remote is great day-to-day, but over time you really do miss your coworkers and colleagues in the industry. Especially the React Native community. I hope y’all take advantage of the opportunity to come hang with us! Get your tix now: chainreactconf.com

A picture of Inigo Montoya that says “Hello, my name is Inigo Montoya. Chain React tickets are on sale. Prepare to buy.”

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Tyler Williams @coolsoftware.dev · 02/05/2026

Here it goes parsing the tokens into an AST:

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Tyler Williams @coolsoftware.dev · 02/05/2026

Playin' around with compiler visualizations. Here's some lexing from my toy TypeScript interpreter:

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Tyler Williams @coolsoftware.dev · 26/10/2025

Just remember, when you request changes on my PR, this is who you’re criticizing.

A light brown and white dog has his paws in the keyboard of a laptop.

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Tyler Williams @coolsoftware.dev · 21/06/2025

It’s silly but I’ve been working on this Chivalry 2 K/D for months now because the volume is so high lol. Finally broke 1.0 by the skin of my teeth. For Argon.

A screenshot of Chivalry 2 stats showing a positive kill death ratio with 6831 kills to 6830 deaths among other stats like 15,889 batteries

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Tyler Williams @coolsoftware.dev · 11/06/2025

My simulator streamer is now able to shut down the running instance from Mac, and the website will clear out the video stream automatically instead of hanging on to the last frame. Getting closer to session management. Also: elastic IP set up so I can bookmark dev site, moved some UI around.

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Tyler Williams @coolsoftware.dev · 11/06/2025

Health insurance in the US is fun because you can make graphs like this, and attempt to predict precisely how much you'll spend on health in a given year (both in and out of network) to choose the best option.

A graph showing eight lines: total outlays for a user based on premiums, deductibles, and copays for health insurance. The graph is quite complicated.

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Tyler Williams @coolsoftware.dev · 09/06/2025

Didn't have time for a blog post this weekend because I have been hyper-fixated on a new project: self-hosted app previews on the web. Something like this...

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Tyler Williams @coolsoftware.dev · 24/05/2025

Gettin there… gotta get a better cable management solution

A desk with two monitors, two laptops, a desktop, and a boom arm with mic

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Tyler Williams @coolsoftware.dev · 24/05/2025

I’m having enrichment time in my enclosure (setting up new office equipment)

A messy home office in the middle of being put together.

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Tyler Williams @coolsoftware.dev · 21/05/2025

My clox implementation has closures! Up next is garbage collection, which I'm very excited to implement and learn about since I primarily work with GC'd languages in my day-to-day.

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Tyler Williams @coolsoftware.dev · 15/05/2025

Took a lil time off from Crafting Interpreters for Meetup prep. But I'm back at it with a real stack trace. Very fun to build this kinda thing from ground up:

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Tyler Williams @coolsoftware.dev · 08/05/2025

LinkedIn post got an actually good-looking picture of me, but Bluesky gets a silly action shot. I had a blast talking about @expo.dev and EAS workflows at React Native Boston! Here's me getting animated about how Expo made my original presentation obsolete by shipping too many cool features lol.

Tyler Williams stands in front of a slide with a Fairly Oddparents meme that reads "this is where I'd show you a cool custom workflow - if I had one". The slide text is hidden behind the speaker, who is gesticulating wildly with his hands.

The content of the slide is mostly about how the original presentation was going to be about a custom EAS workflow, but Expo created a much better way to accomplish the task with a pre-packaged workflow, so the presentation had to be re-done, which is kind of funny when you think about it.

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Tyler Williams @coolsoftware.dev · 26/04/2025

My clox implementation is almost Turing complete!!!!!

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Tyler Williams @coolsoftware.dev · 13/04/2025

My C implementation of Lox is coming along. Today, it's fancy arithmetic calculator with a stack trace.

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Tyler Williams @coolsoftware.dev · 12/04/2025

Me, a TypeScript dev, doing pointer math on my weekend side project.

Michael Scott saying “PowerPoint” three times in the episode where he clearly did not do the PowerPoint training he was supposed to beforehand.

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Tyler Williams @coolsoftware.dev · 27/03/2025

I’ve been reading through the web version of Crafting Interpreters (nice to code side-by-side), but the illustrations were so good and the content is amazing - so I bought the book to support and to really enjoy the details.

A picture of the book “Crafting Interpreters” by Robert Nystrom

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Tyler Williams @coolsoftware.dev · 03/03/2025

Driving SwiftUI with JavaScript for funsies.

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Tyler Williams @coolsoftware.dev · 17/02/2025

Wild that the American Gestapo is gonna be named after an internet meme.

A man sets up a set of dominoes in increasing sizes. The smallest domino is the Shiba doge meme. The largest domino is captioned "No one know show to maintain the US Nuclear Arms Stockpile anymore".

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Tyler Williams @coolsoftware.dev · 09/02/2025

Sometimes people ask me for my opinions about React Native tech and it's basically just this.

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Tyler Williams @coolsoftware.dev · 23/01/2025

It’s good to be back in a place with a satisfactory Dunkin Donuts per capita. I passed three of them on my ten minute drive to the optometrist this morning.