Zac Sweers @zacsweers.dev · 13/08/2026MadeByGoogle events continue to be weird influencer-washing and, at best, disingenuous 050
Zac Sweers @zacsweers.dev · 31/07/2026Metro 1.4.0 brings suspend providers! ⚡ github.com/ZacSweers/me...github.comRelease 1.4.0 · ZacSweers/metroNew Experimental support for suspend providers This release introduces experimental support for suspend providers. This is disabled by default and can be enabled by the metro.enableSuspendProviders... 1173
Reposted by Zac SweersNick Ames @nickames82.bsky.social · 29/07/2026Enough statements, enough words, enough "careful consideration", enough private disgust. It's time for UEFA and Europe to take action against what FIFA and Infantino are doing to football: www.theguardian.com/football/202...theguardian.comUefa has to show backbone: concrete action can make Fifa’s World Cup plans untenable | Nick AmesEuropean football has shown an increased willingness to talk tough with Fifa but words can only be wielded so many times 1230276
Zac Sweers @zacsweers.dev · 16/07/2026Circuit 0.35.1 begins removing Parcelable requirements and migrating to AndroidX retain! github.com/slackhq/circ...github.comRelease 0.35.1 · slackhq/circuitNew Pluggable Screen/PopResult persistence with CircuitSaver Circuit's saveable back stacks no longer mandate how Screens and PopResults are persisted. A new CircuitSaver abstraction in circuit-run... 0131
Zac Sweers @zacsweers.dev · 06/07/2026Contributed R8 support to shadow, main benefit is you could produce pretty optimized uber jars now (on top of just tree-shaking). Should be pretty handy for CLIs. github.com/GradleUp/shadow/re... github.comRelease 9.5.0 · GradleUp/shadowAdded Check DuplicatesStrategy for merging transformers. (#2026) This will log warnings when an incompatible DuplicatesStrategy (e.g., EXCLUDE) is applied in Gradle configuration for built-in Reso... 3182
Zac Sweers @zacsweers.dev · 02/07/2026My "Metro Under the Hood" talk from KotlinConf is available on YouTube now! Video: youtu.be/KVmogsSbic8 Slides: speakerdeck.com/zacsweers/met...youtu.beMetro Under the Hood | Zac SweersRecording brought to you by American Express. https://americanexpress.io/kotlin-jobs 1161
Zac Sweers @zacsweers.dev · 01/07/2026Metro 1.3.0 has rich diagnostics and experimental runtime tracing! github.com/ZacSweers/metro/re...github.comRelease 1.3.0 · ZacSweers/metroNew [IR] Revamp graph-validation diagnostics with structured output. Taking some inspiration from Rust error messages. Stable diagnostic IDs Compact dependency chains Aligned binding traces... 1162
Zac Sweers @zacsweers.dev · 29/06/2026How to Take an 11 Month Sabbatical www.zacsweers.dev/how-to-take-...zacsweers.devHow to Take an 11 Month SabbaticalA sequel to the last one, but a bit longer. On Leaving Slack After nearly 6 years, I left Slack in August of 2025. It was for a combination of reasons that added up to "it's time". The biggest rea... 6430
Zac Sweers @zacsweers.dev · 24/06/2026Coming in Metro 1.3.0! Was awesome working with Rahul on this 0163
Zac Sweers @zacsweers.dev · 23/06/2026Introducing kempt: a single-entry point CLI that delegates to language-specific formatters with easy installation, automatic binary management, git hook integration, license headers, whitespace handling, and simple configuration. www.zacsweers.dev/introducing-...zacsweers.devIntroducing KemptFormatting should be boring, in the best possible way. 0142
Zac Sweers @zacsweers.dev · 21/06/2026So fucking proud of this team 🇨🇼 . One more to go in Philly 181
Reposted by Zac SweersCommonhaus Foundation @commonhaus.org · 17/06/2026🎉 OkHttp, Okio, Retrofit, and SQLDelight join Commonhaus! www.commonhaus.org/activity/315...commonhaus.org🎉 OkHttp, Okio, Retrofit, and SQLDelight join Commonhaus!OkHttp, Okio, Retrofit, and SQLDelight join Commonhaus under the lysine.dev banner 04421
Zac Sweers @zacsweers.dev · 16/06/2026Super sympathetic to Sonatype's situation, hosting isn't free. But announcing this with paltry limits and no public pricing options (a sales contact ain't it) is bad for everyone and going to be a major disruption to the JVM and Kotlin ecosystems. central.sonatype.org/publish/mave...central.sonatype.orgMaven Central Publishing Limits 6297
Reposted by Zac SweersBrandon Friedman @brandonfriedman.bsky.social · 11/06/2026Best thing about Mamdani is that he's one of the only Democrats who understands you can just do things 484805731
Zac Sweers @zacsweers.dev · 10/06/2026Metro 1.2.0 has Hilt interop, provider inlining, improved compiler performance, and leaner runtime primitives! github.com/ZacSweers/metro/re...github.comRelease 1.2.0 · ZacSweers/metroNew [interop] This release introduces experimental support for Hilt @InstallIn and @EntryPoint interop. Enabled with metro { interop { includeHilt() } } A @DependencyGraph(<scope>) automatically ... 0133
Reposted by Zac SweersKetan Joshi @ketanjoshi.co · 10/06/2026I've been a broken record on this for three years and I'll be a broken record for as long as that fucking website exists: X is a viciously racist far-right organising platform that ONLY WORKS because a huge number of centrists, lefties and progressivs cannot stop propping it upyahoo.comElon Musk accused of fuelling unrest after Belfast knife attackThe use of social media in planning violent protests over the Belfast knife attack has drawn condemnation, with Britain's ruling Labour Party accusing Elon Musk of stoking divisions. The tech billiona... 16388213360
Reposted by Zac SweersJosh @stagg.me · 10/06/2026⚡️Circuit 0.34.0 is out 🚀 🆕 SubCircuit - A lightweight presenter/UI pair for reusable components that need to cooperatively delegate events to a parent. Plus a new composite-presenter Inbox sample, support for Compose 1.11, and a variety of fixes! github.com/slackhq/circ...github.comRelease 0.34.0 · slackhq/circuitSubCircuit SubCircuit is a lightweight version of Circuit for rendering nested presenter/UI pairs that delegate events to an outer component rather than handling navigation themselves. Use it for n... 021
Zac Sweers @zacsweers.dev · 08/06/2026Moreover, what Apple and Google and all these other companies haven't learned that movie studios have is you need to make the non-human companion character functionally a cat. Toothless, Rocky, BB8, R2, Stitch, WALL-E, Groot, list goes on 150
Reposted by Zac SweersRodger Sherman @rodger.bsky.social · 27/05/2026—Guy gets a potato egg and cheese taco —republicans decide to make it a campaign issue —they call him vegan instead of vegetarian even though vegans don’t eat eggs or cheese, because vegan sounds “worse” —guy isn’t even vegetarian, he just likes tacos 1702445420
Zac Sweers @zacsweers.dev · 22/05/2026Here are the slides: speakerdeck.com/zacsweers/me...speakerdeck.comMetro Under the Hood 0122
Zac Sweers @zacsweers.dev · 20/05/2026I'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... 1272
Zac Sweers @zacsweers.dev · 13/05/2026Metro 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..github.comRelease 1.0.1 · ZacSweers/metroNew [FIR] Add a diagnostic warning that @Module.subcomponents is ignored by Metro (when Dagger interop is enabled). [FIR] Add a diagnostic error for annotating @AssistedInject types with @Contribu... 1251
Reposted by Zac SweersMark Allison @markallison.social · 27/04/2026I'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 0213
Zac Sweers @zacsweers.dev · 27/04/2026Metro 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...zacsweers.dev🚇 Metro is StableMetro 1.0.0 is out now and stable. This means that its runtime APIs (runtime, MetroX artifacts, Gradle plugin, etc.) are now API-stable unless annotated with an experimental annotation. This is an ex... 310630
Zac Sweers @zacsweers.dev · 23/04/2026Metro 1.0.0-RC3 is out now and promotes function providers to the default! github.com/ZacSweers/metro/re...github.comRelease 1.0.0-RC3 · ZacSweers/metroThis is the third release candidate for Metro 1.0! This means that its runtime APIs (runtime, metrox artifacts, Gradle plugin, etc) will be API stable unless annotated with an experimental annotati... 1102
Reposted by Zac SweersBridget Phillips @jingibus.bsky.social · 15/04/2026Big +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. 071
Reposted by Zac SweersRay Ryan @rjrjr.com · 15/04/2026Joel and Jacob are two of the most talented (and most pleasant!) people I have ever worked with. 0143
Zac Sweers @zacsweers.dev · 15/04/2026I 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! 1356
Reposted by Zac SweersRalf @ralf-wondratschek.com · 14/04/2026We'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...engineering.block.xyzMetro Migration at Square AndroidHow Square Android migrated its monorepo from Dagger 2 and Anvil to Metro over nine months and saved thousands of hours of build time. 0318
Zac Sweers @zacsweers.dev · 13/04/2026Metro 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...github.comRelease 1.0.0-RC1 · ZacSweers/metroThis is the first release candidate for Metro 1.0! This means that its runtime APIs (runtime, metrox artifacts, Gradle plugin, etc) will be API stable unless annotated with an experimental annotati... 2429
Reposted by Zac SweersClaire Jackson @claire.northsky.social · 19/02/2026we should have a third industry besides AI and gambling 92578547
Zac Sweers @zacsweers.dev · 07/04/2026Me, 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 0201
Zac Sweers @zacsweers.dev · 06/04/2026Small 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...gist.github.comkmp-new.shkmp-new.sh. GitHub Gist: instantly share code, notes, and snippets. 290
Zac Sweers @zacsweers.dev · 05/04/2026Metro 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...github.comRelease 0.13.0 · ZacSweers/metroNew Circuit codegen Metro now includes experimental built-in support for Circuit, a Compose-first architecture for building kotlin apps. See the docs for more details. In the long term, this will e... 1277
Zac Sweers @zacsweers.dev · 29/01/2026👋 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...zacsweers.devSponsoring MetroMetro is the proudest work of my career. Ever since starting it on vacation in November 2024, building it has been an incredible journey and the community reception has been nothing short of wonderful... 0447
Zac Sweers @zacsweers.dev · 08/08/2025Last day at Slack! Nothing planned next yet, gonna enjoy some time off 🌴 12850
Zac Sweers @zacsweers.dev · 18/07/2025Metro wouldn’t be where it is without the road that Anvil paved before it. I’ve really enjoyed working with Joel and Jacob on several Metro features already, with @ralf-wondratschek.com in its early design phase, and really looking forward continuing to work with all of them. Future’s bright 🚇 1403
Zac Sweers @zacsweers.dev · 03/05/2025Big Friday over here - Foster pup Helga got adopted! - Raced another mile and lowered my (adult life) best to 4:46 in a big breakthrough - Finished a huge rewrite of Metro's internal binding graph, runs in O(V+E) complexity now + fixed a few bugs along the way 3290
Zac Sweers @zacsweers.dev · 29/04/2025Is there a word for people on Sessionize submitting vague tech leadership talks that read like escaped LinkedIn posters and don't seem to understand what conf they're submitting for? 490
Zac Sweers @zacsweers.dev · 03/04/2025A palette cleanser for your timeline today: Introducing Metro! Metro is a compiler-plugin-based dependency injection framework that draws heavy inspiration from Dagger, Anvil, & Kotlin-Inject. www.zacsweers.dev/introducing-...zacsweers.devIntroducing MetroI'm excited to share something new I've been working on the past few months! 88320
Zac Sweers @zacsweers.dev · 24/03/2025If cities were half as effective as pickleball people at getting new infrastructure built we would have solved affordable housing by now 1103
Zac Sweers @zacsweers.dev · 19/03/2025The world if corporate IT orgs stopped doing vanity projects 160
Zac Sweers @zacsweers.dev · 18/03/2025Rolled back the years a bit on Sunday and did something I never thought I’d do again: chased a PR. 1:24:24 chip time, 1:23:28 watch split. Sights set on the track this summer now 🌞 2120
Zac Sweers @zacsweers.dev · 17/02/2025One Last View of Mom www.zacsweers.dev/one-last-vie...zacsweers.devOne Last View of MomWe said goodbye to mom in May after a five year battle with cancer. She left on her own terms, under the care of the wonderful University of Vermont hospice network and Act 39. The day mom passed, my ... 7340