@marcoieni

Infrastructure Eng @rust_foundation 🎙️ Podcast https://xitter.cf/t.co/Tvh32Pcxkl 🦀 Automating Rust releases @release_plz_dev 🐘 @MarcoIeni@hachyderm.io

 Messina, Italy
ieni.dev/
Joined April 2020
  • Tweets1.3K
  • Following406
  • Followers2.3K
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Replying to @release_plz_dev
@release_plz_dev intro video. Made with @fframes_rust.
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Great to see companies investing in making easier to ship Rust apps!
Encore
@encoredotdev17h
Encore is coming to Rust - your cloud, less DevOps. Sign up for early access: encore.dev/rs
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Marco Ieni 🦀 retweeted
Serokell@serokell16h
Millions of developers use Rust, and keeping its infrastructure running takes constant effort. We talked to @marcoieni from the @rust_foundation about CI costs, security, the shortage of reviewers, and the challenges of maintaining Rust's infrastructure. serokell.io/blog/the-hidden-…

The Hidden Challenges of Rust Infrastructure: Interview with Marco Ieni

Marco Ieni of the Rust Foundation discusses Rust infrastructure, CI costs, running untrusted code, release-plz, and maintaining a growing open-source ecosystem.

serokell.io
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TDD: Twitter Driven Development
Peter Steinberger 🦞
@steipeteOct 20
Replying to @OpenAIDevs
@roboclawbot research this and make it a config option and open PR
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Marco Ieni 🦀 retweeted
VoidZero
@voidzerodevOct 20
Introducing tsrs: a Rust port of the TypeScript compiler 🦀 We are not forking TypeScript! ◆ In close collaborating with the TypeScript team ◆ Up to 8x faster than TS 7.0 & ~70% less memory ◆ Runs in WASM, so it works in your browser & on Workers ◆ Soon part of the Oxc toolchain npx tsrs blog.cloudflare.com/typescri…

Introducing tsrs: a Port of TypeScript to Rust

Cloudflare is collaborating on tsrs, a Rust port of TypeScript that is up to 8x faster and uses 70% less memory.

blog.cloudflare.com
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Clippy has a new homepage! 👋 Goodbye rust-lang.github.io/rust-cli… 🏠 Welcome clippy.rust-lang.org/
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Marco Ieni 🦀 retweeted
Charlie Marsh
@charliermarshOct 14
Cargo's compilation model is built around crates: independent crates get compiled in parallel, and unaffected crates can be skipped entirely. We split up uv's primary crate into 14 (!) crates (from 46k to 6k lines of code), and it sped up incremental build times by 30 to 40%!
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Thanks @encoredotdev for sponsoring @release_plz_dev ! The release-plz GitHub Action is now used by 3600 public GitHub projects. Great to see a company finally recognizing my efforts 🙏 Btw if you want to deploy your app and you don't want to deal with Terraform, check them out!
Encore
@encoredotdevOct 13
Encore is now a proud sponsor of release-plz / @marcoieni. (Part of our ongoing effort to support the open-source projects and people we build on)
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Here is a cool video showcasing how @encoredotdev works: xitter.cf/encoredotdev/status/21…
Encore
@encoredotdevOct 7
Hello Encore. Bye Terraform.

Encore

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Here is what the #rustlang Infrastructure Team worked on in the last three months and what we want to do next blog.rust-lang.org/inside-ru…

Infrastructure Team 2026 Q3 Recap and Q4 Plan | Inside Rust Blog

Want to follow along with Rust development? Curious how you might get involved? Take a look!

blog.rust-lang.org
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Marco Ieni 🦀 retweeted
fframes@fframes_rustOct 11
rust tools deserve good trailers too 🦀
Marco Ieni 🦀@marcoieniOct 11
Replying to @release_plz_dev
@release_plz_dev intro video. Made with @fframes_rust.
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~5 years of release-plz GitHub Activity
Graph showing weekly GitHub commits from December 2021 to October 2026, highlighting contributors 'marcoieni' and 'renovate[bot]'. https://github.com/release-plz/release-plz/graphs/contributors?from=12%2F1%2F2021&to=10%2F4%2F2026 Marco authored 1360 commits.

ALT Graph showing weekly GitHub commits from December 2021 to October 2026, highlighting contributors 'marcoieni' and 'renovate[bot]'. https://github.com/release-plz/release-plz/graphs/contributors?from=12%2F1%2F2021&to=10%2F4%2F2026 Marco authored 1360 commits.

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Result of something similar to this (CI failed on main because it didn't finish in time for the next commit. I need to setup a merge queue).
tons of perf PRs merged

ALT tons of perf PRs merged

Marco Ieni 🦀@marcoieniOct 8
1. Ask AI to open a draft PR to add benchmarks for your projects, covering the most common use cases. 2. Don't review that PR. 3. Ask AI to spawn subagents to use these benchmarks to identify up to 10 performance wins that are easy to review and open a PR for each of them.
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1. Ask AI to open a draft PR to add benchmarks for your projects, covering the most common use cases. 2. Don't review that PR. 3. Ask AI to spawn subagents to use these benchmarks to identify up to 10 performance wins that are easy to review and open a PR for each of them.
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Bonus things to add in point 3: * In the PR body, justify the performance improvement by reporting the benchmark results before and after the PR. * Fell free to install and use profilers to identify the major bottlenecks.
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Since Rust 1.99.0 there's no need to set CARGO_INCREMENTAL=0 in CI. doc.rust-lang.org/beta/cargo…
Screenshot of the first changed item of the link

ALT Screenshot of the first changed item of the link

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All RustConf 2026 talks: youtube.com/playlist?list=PL…

RustConf 2026

The Rust Foundation hosted the annual RustConf event in Montreal, Canada, September 8-11, 2026. All keynotes, breakout sessions, and lightning talk recording...

youtube.com
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Marco Ieni 🦀 retweeted
antirez@antirezOct 1
Wrong advice for junior developer: look at the AI generated code, since you need to mature as a programmer. Right advice: save time with AI coding and write by hand "get-better" programs: interpreters, games, ray tracers, ...
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I’m now team leader of the Rust Infrastructure team! I’ll keep shipping, but I’ll also pay more attention to the load, health, and overall direction of the team.
screenshot of https://rust-lang.org/governance/teams/infra/

ALT screenshot of https://rust-lang.org/governance/teams/infra/

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My stream deck plugin for the ChatGPT Desktop App is available in the Elgato marketplace (free and open source)! 🐈‍⬛ marketplace.elgato.com/produ… My favorite features: seeing the progress of the chats on the device and clicking their button to open them in the App.

ChatGato | Stream Deck Plugins | Elgato Marketplace

A Stream Deck plugin to control the OpenAI ChatGPT desktop app (Codex). ChatGato shows live status for up to 20 local or SSH-hosted chats, displays remaining Codex usage limits, and provides keys for...

marketplace.elgato.com
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I changed the Pull Request template of release-plz. I realized I don't care if you used AI to write code, or how you used AI, or which model you used. I just want to make sure you reviewed the code before submitting it. 🧵
Screenshot of PR https://github.com/release-plz/.github/pull/2

ALT Screenshot of PR https://github.com/release-plz/.github/pull/2

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more replies
This is the most sustainable way I found to keep maintaining release-plz in my spare time. It seems like it's working. In the last month: - 39 PRs merged in main excluding automations such as renovate. - closed 18 issues. Lots of bug fixes!
Dashboard summarizing GitHub activity over a month.

ALT Dashboard summarizing GitHub activity over a month.

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And finally, a reminder to all open source maintainers working on their spare time: you owe nothing to your users! Your time is a gift you are doing to the open source community. People can't demand more gifts or more expensive one.
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