Here are the slides: speakerdeck.com/zacsweers/me...

I'll be giving a talk about Metro's internals tomorrow at @kotlinconf.com! This'll be an advanced talk that assumes familiarity with Metro, and is a sort of part 2 of my "Navigating Dependency Injection with Metro" talk last year. You can find it here: www.youtube.com/watch?v=jVfm...

Metro 1.1.0 and 1.0.1 are out now! This is largely a performance release. They are identical except 1.1.0 drops Kotlin 2.2.0 - Improved compiler performance - Lots of tracing improvements - SwitchingProvider now generates tableswitch bytecode - Kotlin 2.4.20 support github.com/ZacSweers/metro/re..

I've used Metro, and it's better than anything else, imo. It not only speeds up your builds, but makes DI easier, and also provides simpler upgrade paths if you're transitioning from other common DI frameworks. Huge thanks to @zacsweers.dev

Metro reaches 1.0! It's the proudest work of my career and I strongly feel this is how dependency injection in Kotlin should be. Thank you to everyone that's contributed and helped this project get to where it's at. Metro wouldn't be where it is without you. www.zacsweers.dev/metro-is-sta...

Metro 1.0.0-RC3 is out now and promotes function providers to the default! github.com/ZacSweers/metro/re...

Big +1. Joel and Jacob deserve so much credit for this. A project this big, hit with this kind of organizational instability...it's a real relay race. I know Cash also benefitted from their work.

Joel and Jacob are two of the most talented (and most pleasant!) people I have ever worked with.

I know there's a lot of people that worked on this behind the scenes but on top of Ralf and Tom, I also wanna give a huge shout out to Joel Wilcox and Jacob Applin for a ton of contributions, pairing sessions over tuple, and starting work with me on Metro as far back as January 2025. Hire them!

We're wrapping up our migration to Metro internally for Square Android. I summarized some of our challenges and steps we took in a blog post. If you use Dagger 2 for a Kotlin project, then you should migrate to Metro sooner rather than later. engineering.block.xyz/blog/metro-m...

Metro 1.0.0-RC1 is out now! Last call for feedback on the public, non-experimental runtime/metrox/gradle APIs! github.com/ZacSweers/metro/re...

@chethaase.com was here, maybe

we should have a third industry besides AI and gambling

Me, working in compilers: fuck yeah look at these tree structures and algorithms go Me, working with compose M3: please god just tell me which of these 5 overloads is not deprecated and accepts a String value

Small script wrapper over the updated KMP project templates in courtesy of Claude Code, includes a few extra patches for metro/circuit and newer versions. gist.github.com/ZacSweers/510...

Metro 0.13.0 adds top-level contribution providers, Circuit code gen, and a new @DefaultBinding annotation. This also removes most deprecated APIs as Metro prepares to go stable (!!). If you have runtime API feedback, now is the time! github.com/ZacSweers/me...

SCOTUS rules torture of LGBTQ+ youth is free speech

Huge result here - the idea that social platforms can be defective products that cause harm is going to send shockwaves through an industry that has claimed essentially blanket protection from liability by saying everything is speech

Metro 0.12.0 introduces implicit class keys, raises some min JVM/Gradle versions, drops some deprecated targets, and the usual host of other improvements and bug fixes! github.com/ZacSweers/metro/re...

Meta's statement about eliminating encryption in Instagram DMs was disingenuous and misleading. Here are the real reasons it's going away www.platformer.news/instagram-en...

Garbage company with garbage ethics continues to do garbage, unethical things. More news at 11.

BREAKING: WASHINGTON (AP) — James Talarico wins Democratic nomination for U.S. Senate in Texas primary election.

Most gender affirming care is stuff like wigs for little girls with cancer But anything to pander to their base’s current boogeyman

Two Pillars of (Engineering) Management www.zacsweers.dev/two-pillars-...

Sam Altman got played and spun it like a win - @haydenfield.bsky.social has the scoop from a weekend’s worth of reporting from inside the Pentagon AI negotiations. www.theverge.com/ai-artificia...

Good thread. OSS at most companies is really just a handful of dedicated individuals that the company loves to advertise but constantly threatens

Today’s military strikes on Iran — carried out by the United States and Israel — mark a catastrophic escalation in an illegal war of aggression. Bombing cities. Killing civilians. Opening a new theater of war.

Thousands of good people were laid off by Block (Square and Cash App) today by their chickenshit leadership. Hire them, this is all Block's loss.

Metro 0.11.0 is out now, along with a new proposal system called MEEPs! www.zacsweers.dev/metro-0-11-0... Release: github.com/ZacSweers/me...

Android developer registration starts some time next month - expect to hear a lot more from the groups trying to oppose it over the coming weeks

An idea whose time has come hellgatenyc.com/feed-the-met...

Re: Dependency Injection vs. Service Locators www.zacsweers.dev/re-dependen...

Excited to be speaking at KotlinConf again, this time about how Metro's features work under the hood!

one of those things you need to watch if for no other reason than the trump administration doesn't want you to:

Every time I see a post like this I go ask a developer I know at that company if it's true and every single time it's misleading at best, if not outright horse shit. techcrunch.com/2026/02/12/spo...

Vibe coded a little CLI + wrapper github action to auto-delete bluesky/mastodon posts/reposts/likes. Idea is that you can stick this in a github actions cron workflow and let it periodically run+delete posts beyond a configurable horizon. Supports keep lists too. github.com/ZacSweers/skyscraper

Just published "Where are all the staff+ Android product engineers?" www.zacsweers.dev/where-are-th...

I've been using Claude Code 4.6 to try to help with some CI boilerplate setup in Metro and at least three different times now it's just gotten stuck and concluded it should just delete all the code that isn't working. Would not advise using it, it's clearly a pattern at this point.

I wrote about the Epstein files (gift link) www.theverge.com/tech/874721/...

I am begging Zendesk to get their shit together today, clearly being used as a relay attack today

Just want to take a second and appreciate @sarahjeong.bsky.social, @reckless.bsky.social, and the whole team at @theverge.com for consistently meeting the moment here. Fearless reporting, pulling no punches. Proud to be a subscriber.

👋 Hi everyone, I’m enabling GitHub Sponsors for Metro If Metro has improved your developer experience or saved your team's build times, I’d appreciate the support! Full pitch and ROI napkin math here: www.zacsweers.dev/sponsoring-m...

We're officially fundraising for laid-off Vox workers. Please share and donate if you can! www.gofundme.com/f/support-la...

Nice lightning talk from Jonas Pedersen on Hilt -> Metro migrations: www.youtube.com/watch?v=8ojc...

New Yorkers (especially soccer players) — ICE has abducted multiple people at Pier 40 this week, come up in a couple local pickup soccer WhatsApp groups I'm in. I wouldn't recommend playing at Pier 40 for the foreseeable future. hellgatenyc.com/hudson-river-...

Y'all, Shoresy is so good

🚇 Metro 0.10.0 is out! - @Inject is now optional for most @Contributes* annotations! - KMP Milestone: FIR hint/top-level function gen enabled by default in 2.3.20+! - Perf: Sharding and switching providers support - Lazy maps - LOTs of fixes and improvements github.com/ZacSweers/me...

One of the most frustrating things under Salesforce was how obvious it was that Benioff just tries to copy what (he thinks) other tech CEOs do without any real understanding of why or how to implement those decisions. timesofindia.indiatimes.com/t...

The “prosecute the former regime at every level” candidate has my vote in 2028.