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Posts by Carl Lerche

I am going to give a talk about why tokio.rs is a great choice for running CPU bound tasks in Database Query Egnines

1 day ago 20 2 2 0

πŸ™β›ͺπŸ¦€

1 day ago 1 0 0 0
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So, I was playing with Gemini...

2 days ago 3 0 2 0

The @release-plz.dev crate is the tool I've been wanting for years! I've only added it to two crates so far, but it makes releasing crates so easy. I will be adding it to more over time for sure.

6 days ago 2 0 0 0

There will most likely be one in 2027, as long as this one doesn't turn out to be a disaster! First time trying to organize a conference, learning as I go.

1 week ago 1 0 0 0

Just delay the child release a few months

1 week ago 1 0 0 0

It is not too late!

1 week ago 0 0 1 0

No more talking about rust-analyzer on /r/rust either. That is now "off topic": github.com/rust-lang/ru...

1 week ago 28 1 2 0
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Lucretiel's comment on "Unreasonable AI content moderation policy" Explore this conversation and more from the rust community

Yep, rust-lang is also off-topic now: www.reddit.com/r/rust/comme...

1 week ago 16 0 2 0

Do you use rustfmt? Do you use IDE refactoring? BANNED.

1 week ago 4 0 1 0
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This means I am effectively banned from /r/rust. I use some amount of AI tools in all my coding now. Nothing I do is 100% human written.

1 week ago 41 0 2 0
Toasty, an async ORM for Rust, is now on crates.io

Apparently, if a crate is not 100% human written, it is off topic for /r/rust: reddit.com/r/rust/comme.... I have been working on Toasty for 3 years, 9 months with AI tools. I am quite proud of the code quality and stand by it. By their standard, the entire tokio-rs GitHub organization is now OT.

1 week ago 157 13 23 14
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crates.io: Rust Package Registry

Toasty, an async ORM for Rust, is now on crates.io. This is the blog post that I promised: tokio.rs/blog/2026-04.... Happy to answer any questions here.

1 week ago 22 2 0 0

If you want to guarantee your t-shirt size, book in the next week!

1 week ago 0 0 0 0
TokioConf T-Shirt

TokioConf T-Shirt

We are 3 weeks out from the first @tokioconf.com. Spoiler: This is the t-shirt! I just saw the design and had to share it. It is so exciting to see it all come together. You still have time to get tickets, but not much time! tokioconf.com.

1 week ago 7 3 2 0

A preview of the Toasty query! macro: github.com/tokio-rs/toa.... Some of it is already built: docs.rs/toasty/lates...

1 week ago 2 0 1 0

I'm glad to hear! There is still a lot to build, and I have so many more ideas. I also have more in the pipeline for building web apps with Rust. I am aiming to make it as productive as any other language!

1 week ago 1 0 0 0
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GitHub - tokio-rs/toasty: An async ORM for Rust (incubating) An async ORM for Rust (incubating). Contribute to tokio-rs/toasty development by creating an account on GitHub.

I finally published Toasty (async Rust ORM) crates! I’ll be writing about it soon (and why it took so long). github.com/tokio-rs/toa...

1 week ago 59 8 2 1
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What list is this and how do I get on it?

2 weeks ago 2 0 0 0

give πŸ‘ clippy πŸ‘ the πŸ‘ call πŸ‘ graph

3 weeks ago 19 1 1 0

It’s also really hard to detect regressions in an automated way… my guess is regressions are deployed and patched constantly

3 weeks ago 0 0 0 0

I’m having no problem. Claude code with opus 4.6 is doing really well (most of the time)

3 weeks ago 4 1 1 0
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Wow, dial9 (by Russel Cohen) looks killer. It's a flight recorder for Tokio that gathers runtime metrics and renders them. Service teams at AWS have already had success with it. Blog post: tokio.rs/blog/2026-03...

3 weeks ago 14 2 0 0

My guess is there is a bigger strategic goal: Make creating software approachable for non-developers (people who never look at the code). To do this well is going to mean "owning the stack". From that angle, owning package managers makes sense.

3 weeks ago 2 0 0 0
Free TokioConf tickets for contributors and open source maintainers | Tokio - An asynchronous Rust runtime Tokio is a runtime for writing reliable asynchronous applications with Rust. It provides async I/O, networking, scheduling, timers, and more.

We're setting aside 20 free TokioConf tickets for contributors and open source maintainers. If you've submitted a PR to any tokio-rs, hyperium, or tower-rs repo, that's you. Know someone who qualifies? Send them our way! tokio.rs/blog/2026-03...

4 weeks ago 20 5 0 0

Same old story: big company takes over, talented employees move on, corporate pushes new features and deadlines, Jr devs w/ no ability to push back ship as fast as possible, sacrificing quality. Rinse and repeat.

1 month ago 1 0 0 0

Thanks for the offer. I think we can still use volunteers for the day of. Send an email to hello@tokioconf.com

1 month ago 1 0 0 0
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High Leverage | Ep. #6, Async Runtime For Rust with Carl Lerche of Tokio | Heavybit On episode 6 of High Leverage, Joe Ruscio speaks with Carl Lerche of Tokio about building high-performance systems in Rust.

I went on a podcast to talk about Rust, async programming, and Tokio. Happy to answer any questions or you can just tell me I'm wrong.

hubs.ly/Q040QsRg0

2 months ago 5 1 0 0
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Meet the Speakers β€” TokioConf 2026 Discover the speakers behind TokioConf 2026. From core maintainers to community leaders, our lineup shares real-world experience and insights.

We’re excited to share the complete list of speakers joining us at TokioConf 2026 covering performance tricks, architecture patterns, and more.

See all our speakers: www.tokioconf.com/speakers
(Schedule coming soon)

Tickets are on sale: www.eventbrite.com/e/tokioconf-...

3 months ago 13 4 0 1

Buy your ticket now! If we sell out soon, we might be able to expand to accommodate more, but only if we have enough time to do so!

3 months ago 4 1 0 0