iiinova — where your digital self keeps evolving

Brad Zacher @brad.zacher.com.au · 04/09/2026

Today is my last day at Canva. It's been a blast and I've thoroughly enjoyed working there for the past 4 years. But it's time for the next adventure. Sunday I fly to SF and next week I'll be joining Cursor working on developer productivity. I couldn't be more excited!!!

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TypeScript-ESLint @typescript-eslint.io · 10/03/2026

Thanks to @notion.com for the $6,000 donation! Amazing to see companies supporting their dependencies in such a big way 🎉

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Brad Zacher @brad.zacher.com.au · 04/02/2026

Used an agent for profiling for the first time today. It was pretty cool to let it just run some tools and try to find some potential improvements. It came up with some vague suggestions I was able to grow and iterate on for some decent wins!

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Brad Zacher @brad.zacher.com.au · 13/01/2026

We added a fixer for unused imports to no-unused-vars! By default it's a suggestion fixer - but you can swap it to an autofixer (for autofix-on-save or --fix). Please try it out today!

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TypeScript-ESLint @typescript-eslint.io · 05/01/2026

📝 New blog post: Revamping the `ban-types` rule. For many years, ban-types was one of our more prominent rules. We split it into targeted rules that better addressed common user needs. Read on for how it came to be & what those new rules do better! typescript-eslint.io/blog/revampi...

typescript-eslint.io

Revamping the `ban-types` rule | typescript-eslint

How the now-deprecated `ban-types` rule evolved over time to what is now several newer, targeted rules.

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Brad Zacher @brad.zacher.com.au · 27/12/2025

If you look closely and squint you can just barely make out which week I landed several hundred PRs to migrate some of Canva's codebase to isolatedDeclarations

Screenshot of github's contribution dot visualisation where almost every square is muted green meaning "less contributions" except for one week which is bright green meaning "more contributions".

The visualisation is meant to work like a heat map, but because the number of contributions in that week was many hundreds of times greater than the other weeks, it's colours ruined the scale making everything else the same, indistinguishable colour.

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Brad Zacher @brad.zacher.com.au · 23/12/2025

I have setup my first "home lab" with proxmox! For my first VM I setup a remote devbox! It took waaaay longer to get it working than I'd care to admit... But I can connect to it via vscode and everything! Now to spin up a few more VMs for things I've always wanted to run...

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Brad Zacher @brad.zacher.com.au · 23/12/2025

Has anyone got a good guide to setting up a Ubuntu machine to accept (local) SSH connections? Configuring the base image from scratch is not super easy when you've never done it before :harold:

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Brad Zacher @brad.zacher.com.au · 21/12/2025

Okay I just got a Beelink SER9 for use as my remote devbox and server host. Now to figure out how to install linux on it... boy it's been a long while since I've done this.

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Brad Zacher @brad.zacher.com.au · 11/12/2025

If I ever see someone's comment and it says "you're absolutely right" I now automatically assume that they are either an LLM bot or that they're copy pasting from one. It's such a shame that we have to deal with this slop contribution in our opensource projects.

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Brad Zacher @brad.zacher.com.au · 08/12/2025

One major issue I've found with package.json imports over tsconfig paths is usage across "boundaries". A package.json import spec cannot include a file outside the current dir -- eg it can't start with `../`! They also don't "bubble" through nested package.jsons!

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Brad Zacher @brad.zacher.com.au · 14/11/2025

My #BazelCon 2025 talk about how Canva used isolatedDeclarations to greatly improve typecheck performance youtu.be/26CoMExb6FE

youtu.be

Improving Bazel TypeScript Type-Checks With IsolatedDeclarations - Brad Zacher, Canva

YouTube video by BazelCon

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Brad Zacher @brad.zacher.com.au · 13/11/2025

It's been a great few days in Atlanta for #BazelCon. Met lots of great people. Learned a bunch about bazel and the community around it. And (finally) gave my first conference talk!

Picture of my conference badge.
The badge reads:

BazelCon 2025
Brad Zacher
Canva
Speaker

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Brad Zacher @brad.zacher.com.au · 11/09/2025

Today I learned that git and github support emojis in branch names. Do with that information what you will.

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Brad Zacher @brad.zacher.com.au · 06/09/2025

We've had a few people ask about type-aware linting, eslint's new concurrent linting mode, and why they don't play well together. So we (the ts-eslint team) wrote a short post breaking down why and the design limitations we're constrained by. github.com/typescript-e...

github.com

Interaction with multithread linting · typescript-eslint typescript-eslint · Discussion #11568

Body ESlint v9.34.0 has added support for multithread linting: https://eslint.org/blog/2025/08/multithread-linting/ One word that isn't mentioned in that blog post is "TypeScript." If you use linti...

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Brad Zacher @brad.zacher.com.au · 24/07/2025

Been seeing an uptick in what are clearly vibe-coded PRs. On the surface this seems great -- more contributors! But in the reality it's often AI slop that the person hasn't reviewed and instead the burden of review is on us, the maintainers -- which is a horrible trade.

Panel 1: Bus driver saying "Don't make me tap the sign"
Panel 2: The bus driver tapping a sign that says "Engineers must review all AI generated code"

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Brad Zacher @brad.zacher.com.au · 12/02/2025

I asked cursor's AI agent to try to create a small TUI form. It went HORRIBLY. After a while it declared the task as done despite numerous compiler errors. When I told it that it wasn't done. This was the agent's response:

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Brad Zacher @brad.zacher.com.au · 28/12/2024

Without downloading any new pics what's your energy going into 2025

This is the worst code I've written
This is the worst code you've written so far

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Brad Zacher @brad.zacher.com.au · 12/12/2024

I've been doing a bunch of work on a meta-linter of sorts and so I need to ingest results from many different linters. A really painful problem I've discovered recently is that nobody is consistent about how to define a "location" in text. It's a surprisingly complex space to try and reconcile!

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Brad Zacher @brad.zacher.com.au · 26/11/2024

I finally started using copilot a few weeks ago. As a skeptic I didn't think that I'd like it so I was surprised to find I actually have found value in it. (Humble brag) I've met very few people who can pump out code as fast as I can. So I didn't think that copilot would really make me much faster.

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Brad Zacher @brad.zacher.com.au · 25/11/2024

The most frustrating thing about providing support to someone is when they use words like "this / that / it". I tried that, but it errored Tried what? What error? Show what you tried! There's a good chance you did "it" wrong! After all that's why you're asking for help.

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TypeScript-ESLint @typescript-eslint.io · 18/11/2024

TypeScript-ESLint v8.15.0 has been released! This release includes: - a fix for the recent crash introduced with ESLint v9.15.0 - support for arrays in `tseslint.config` (no more spreads necessary!) - a new rule `no-unsafe-type-assertion` - and more...! github.com/typescript-e...

github.com

Release v8.15.0 · typescript-eslint/typescript-eslint

8.15.0 (2024-11-18) 🚀 Features eslint-plugin: added related-getter-setter-pairs rule (#10192) eslint-plugin: new rule no-unsafe-type-assertion (#10051) eslint-plugin: [prefer-nullish-coalescing] f...

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Brad Zacher @brad.zacher.com.au · 14/11/2024

It's good to know that AI is still a long way off taking my job

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Brad Zacher @brad.zacher.com.au · 10/11/2024

I made/maintained a lot of the lint rules people have a love hate relationship with.

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Brad Zacher @brad.zacher.com.au · 10/11/2024

"cast"? Sir it's not a cast unless it's from the native region of programming languages. Otherwise it's a sparkling assertion.

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Cassidy @cassidoo.co · 07/11/2024

I want to CREATE something but all of my energy is being used to merely exist right now

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Ryan Cavanaugh @searyanc.dev · 07/11/2024

Thanks for filing this issue. We generally look at bug reports in order of most-succinct repro to most-complex repro. We have currently scheduled this one for three weeks after the heat death of the universe.

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Brad Zacher @brad.zacher.com.au · 05/11/2024

I made an eslint utility that allows finer control over no-restricted-syntax/globals/properties configurations. In a nutshell it generates a plugin that has one rule per selector -- allowing granular disable comments and better auditing! github.com/bradzacher/e...

github.com

GitHub - bradzacher/eslint-no-restricted: An eslint plugin for quickly and easily creating no-restricted-syntax rules

An eslint plugin for quickly and easily creating no-restricted-syntax rules - bradzacher/eslint-no-restricted

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Josh Ghoulberg 👻 @joshuakgoldberg.com · 05/11/2024

👋 Welcome to Bsky, everyone! I'm jumping on the starter pack bandwagon and making one for the static analysis folks around JavaScript/TypeScript. Projects like ESLint, TypeScript, and new fancy versions of them all. Who else should go on it? go.bsky.app/5hwBPTK

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Josh Ghoulberg 👻 @joshuakgoldberg.com · 06/03/2024

✨ @brad.zacher.com.au and I are going to hop onto a Twitch stream to talk about typescript-eslint intricacies. We'll deep dive into source parsing, ecosystem compatibility, and all sorts of great nuances. Fun! 4pm EST this Thursday the 7th / 7:30am AEST the 8th www.twitch.tv/joshuakgoldb...

twitch.tv

joshuakgoldberg Schedule - Twitch

Check out joshuakgoldberg stream schedule, and set reminders so you don’t miss out!

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