Kaitlin Seng
@kaitlinseng.com
Digging deeper, Rust devs pointed to a couple of helpful resources:
🔗 Corrode Rust Blog: corrode.dev/blog/tips-fo...
🔗 Rust Performance Book: nnethercote.github.io/perf-book/co...
🔗 Corrode Rust Blog: corrode.dev/blog/tips-fo...
🔗 Rust Performance Book: nnethercote.github.io/perf-book/co...
December 12, 2025 at 2:16 PM
Digging deeper, Rust devs pointed to a couple of helpful resources:
🔗 Corrode Rust Blog: corrode.dev/blog/tips-fo...
🔗 Rust Performance Book: nnethercote.github.io/perf-book/co...
🔗 Corrode Rust Blog: corrode.dev/blog/tips-fo...
🔗 Rust Performance Book: nnethercote.github.io/perf-book/co...
The updated Cargo Book chapter offers practical strategies for understanding and improving Rust build performance: doc.rust-lang.org/stable/cargo...
Optimizing Build Performance - The Cargo Book
doc.rust-lang.org
December 12, 2025 at 2:15 PM
The updated Cargo Book chapter offers practical strategies for understanding and improving Rust build performance: doc.rust-lang.org/stable/cargo...
🦀 Rust 1.92.0 was released yesterday! While reading the changelog, one thing that stood out to me was an update to the docs around build performance—not a main feature, but a useful improvement for anyone tuning compile times.
December 12, 2025 at 2:14 PM
🦀 Rust 1.92.0 was released yesterday! While reading the changelog, one thing that stood out to me was an update to the docs around build performance—not a main feature, but a useful improvement for anyone tuning compile times.
🔐📚 For cybersecurity professionals looking to do some technical reading:
Saw this great @humblebundle.com deal for up to 18 books from @nostarchpress.bsky.social and supports @eff.org that includes essential reading for offensive and defensive techniques.
www.humblebundle.com/books/hackin...
Saw this great @humblebundle.com deal for up to 18 books from @nostarchpress.bsky.social and supports @eff.org that includes essential reading for offensive and defensive techniques.
www.humblebundle.com/books/hackin...
December 4, 2025 at 3:06 AM
🔐📚 For cybersecurity professionals looking to do some technical reading:
Saw this great @humblebundle.com deal for up to 18 books from @nostarchpress.bsky.social and supports @eff.org that includes essential reading for offensive and defensive techniques.
www.humblebundle.com/books/hackin...
Saw this great @humblebundle.com deal for up to 18 books from @nostarchpress.bsky.social and supports @eff.org that includes essential reading for offensive and defensive techniques.
www.humblebundle.com/books/hackin...
🎯 Answer: The original Rust compiler from 2010 was written in OCaml! 🐫
OCaml was chosen for its strong type system and pattern matching features. This "bootstrap" compiler was used to create the first self-hosting Rust compiler.
#Programming #PLT
OCaml was chosen for its strong type system and pattern matching features. This "bootstrap" compiler was used to create the first self-hosting Rust compiler.
#Programming #PLT
December 3, 2025 at 4:01 AM
🎯 Answer: The original Rust compiler from 2010 was written in OCaml! 🐫
OCaml was chosen for its strong type system and pattern matching features. This "bootstrap" compiler was used to create the first self-hosting Rust compiler.
#Programming #PLT
OCaml was chosen for its strong type system and pattern matching features. This "bootstrap" compiler was used to create the first self-hosting Rust compiler.
#Programming #PLT
💡 Trivia: What language was used to write the first Rust compiler?
Today's Rust compiler is self-hosting (written in Rust, compiles itself using an existing compiler). But this raises a question: How was the very first Rust compiler created when there was no Rust compiler to build it?
#RustLang
Today's Rust compiler is self-hosting (written in Rust, compiles itself using an existing compiler). But this raises a question: How was the very first Rust compiler created when there was no Rust compiler to build it?
#RustLang
December 3, 2025 at 4:01 AM
💡 Trivia: What language was used to write the first Rust compiler?
Today's Rust compiler is self-hosting (written in Rust, compiles itself using an existing compiler). But this raises a question: How was the very first Rust compiler created when there was no Rust compiler to build it?
#RustLang
Today's Rust compiler is self-hosting (written in Rust, compiles itself using an existing compiler). But this raises a question: How was the very first Rust compiler created when there was no Rust compiler to build it?
#RustLang
Today I switched my deployment from staging to production using GitHub Environments. Same workflow, but GitHub Actions automatically loaded all the prod secrets and configs. No script changes needed—it just worked exactly as designed. Love to see it!
#GitHubActions #DevOps
#GitHubActions #DevOps
November 26, 2025 at 5:45 PM
Today I switched my deployment from staging to production using GitHub Environments. Same workflow, but GitHub Actions automatically loaded all the prod secrets and configs. No script changes needed—it just worked exactly as designed. Love to see it!
#GitHubActions #DevOps
#GitHubActions #DevOps
🦀 Help shape Rust's future! The 2025 State of Rust Survey is open
All experience levels welcome - from beginners to experts, even future Rustaceans.
Takes 10-25 mins, anonymous responses.
Deadline: Dec 17
🔗 blog.rust-lang.org/2025/11/17/l...
All experience levels welcome - from beginners to experts, even future Rustaceans.
Takes 10-25 mins, anonymous responses.
Deadline: Dec 17
🔗 blog.rust-lang.org/2025/11/17/l...
November 25, 2025 at 2:54 PM
🦀 Help shape Rust's future! The 2025 State of Rust Survey is open
All experience levels welcome - from beginners to experts, even future Rustaceans.
Takes 10-25 mins, anonymous responses.
Deadline: Dec 17
🔗 blog.rust-lang.org/2025/11/17/l...
All experience levels welcome - from beginners to experts, even future Rustaceans.
Takes 10-25 mins, anonymous responses.
Deadline: Dec 17
🔗 blog.rust-lang.org/2025/11/17/l...
Fair point, but the benefits would include speed and efficiency: faster cold starts, lower memory usage, smaller deployment packages
November 25, 2025 at 1:27 PM
Fair point, but the benefits would include speed and efficiency: faster cold starts, lower memory usage, smaller deployment packages
That moment your GitHub Actions workflow launches and AWS happens to be releasing the new 5.x.x version of your action and you catch the very moment they are re-creating the high-level v5 tag 👀
November 24, 2025 at 6:48 PM
That moment your GitHub Actions workflow launches and AWS happens to be releasing the new 5.x.x version of your action and you catch the very moment they are re-creating the high-level v5 tag 👀
🔗 Announcement link here: aws.amazon.com/about-aws/wh...
AWS Lambda adds support for Rust - AWS
Discover more about what's new at AWS with AWS Lambda adds support for Rust
aws.amazon.com
November 24, 2025 at 6:46 PM
🔗 Announcement link here: aws.amazon.com/about-aws/wh...
AWS Lambda now officially supports Rust! 🦀
This is huge news from pre:Invent 2025, bringing Rust's performance, memory efficiency, and safety to serverless functions.
What AWS re:Invent (Dec 1-5, Las Vegas) announcements are you most excited about?
#AWS #Rust #Serverless
This is huge news from pre:Invent 2025, bringing Rust's performance, memory efficiency, and safety to serverless functions.
What AWS re:Invent (Dec 1-5, Las Vegas) announcements are you most excited about?
#AWS #Rust #Serverless
November 24, 2025 at 6:45 PM
AWS Lambda now officially supports Rust! 🦀
This is huge news from pre:Invent 2025, bringing Rust's performance, memory efficiency, and safety to serverless functions.
What AWS re:Invent (Dec 1-5, Las Vegas) announcements are you most excited about?
#AWS #Rust #Serverless
This is huge news from pre:Invent 2025, bringing Rust's performance, memory efficiency, and safety to serverless functions.
What AWS re:Invent (Dec 1-5, Las Vegas) announcements are you most excited about?
#AWS #Rust #Serverless
Read Cloudflare's write-up here: blog.cloudflare.com/18-november-...
Cloudflare outage on November 18, 2025
Cloudflare suffered a service outage on November 18, 2025. The outage was triggered by a bug in generation logic for a Bot Management feature file causing many Cloudflare services to be affected.
blog.cloudflare.com
November 19, 2025 at 3:17 PM
Read Cloudflare's write-up here: blog.cloudflare.com/18-november-...
Cloudflare's biggest outage since 2019 came down to an `.unwrap()` call that "should never fail" - until it did.
Key lesson: "This can never happen" usually means "hasn't happened yet." Always implement proper error handling in prod!
Kudos to Cloudflare for the transparent postmortem 🦀
Key lesson: "This can never happen" usually means "hasn't happened yet." Always implement proper error handling in prod!
Kudos to Cloudflare for the transparent postmortem 🦀
November 19, 2025 at 3:17 PM
Cloudflare's biggest outage since 2019 came down to an `.unwrap()` call that "should never fail" - until it did.
Key lesson: "This can never happen" usually means "hasn't happened yet." Always implement proper error handling in prod!
Kudos to Cloudflare for the transparent postmortem 🦀
Key lesson: "This can never happen" usually means "hasn't happened yet." Always implement proper error handling in prod!
Kudos to Cloudflare for the transparent postmortem 🦀
Had a great time at MoCo Code & Coffee yesterday. Loved hearing what everyone’s building and swapping ideas. Already looking forward to the next one ☕💻
If you’re in MoCo and looking for a friendly group to code, chat, and caffeinate with, check out the meetup link: www.meetup.com/mocode-coffee/
If you’re in MoCo and looking for a friendly group to code, chat, and caffeinate with, check out the meetup link: www.meetup.com/mocode-coffee/
November 17, 2025 at 3:02 PM
Had a great time at MoCo Code & Coffee yesterday. Loved hearing what everyone’s building and swapping ideas. Already looking forward to the next one ☕💻
If you’re in MoCo and looking for a friendly group to code, chat, and caffeinate with, check out the meetup link: www.meetup.com/mocode-coffee/
If you’re in MoCo and looking for a friendly group to code, chat, and caffeinate with, check out the meetup link: www.meetup.com/mocode-coffee/
Any D.C.-area folks planning on DistrictCon in January? GA tickets open tomorrow (Nov 16) at noon. Early Bird sold out in 30 𝘴𝘦𝘤𝘰𝘯𝘥𝘴, so set those alarms. ⏰
🎟️ here: www.districtcon.org/tickets
🎟️ here: www.districtcon.org/tickets
DistrictCon Tickets — DistrictCon
www.districtcon.org
November 15, 2025 at 8:59 PM
Any D.C.-area folks planning on DistrictCon in January? GA tickets open tomorrow (Nov 16) at noon. Early Bird sold out in 30 𝘴𝘦𝘤𝘰𝘯𝘥𝘴, so set those alarms. ⏰
🎟️ here: www.districtcon.org/tickets
🎟️ here: www.districtcon.org/tickets
And it looks like the upcoming 3rd edition is changing the 3rd variable to:
`let disapproodles = "ಠ_ಠ"`
🤭
`let disapproodles = "ಠ_ಠ"`
🤭
November 14, 2025 at 3:19 PM
And it looks like the upcoming 3rd edition is changing the 3rd variable to:
`let disapproodles = "ಠ_ಠ"`
🤭
`let disapproodles = "ಠ_ಠ"`
🤭
Always love when textbook authors let their creativity (and sneaky humor) shine through in the code examples.
From O'Reilly's Programming Rust, 2nd Edition
#RustLang #Rust #RustProgramming #OReilly #Learning
From O'Reilly's Programming Rust, 2nd Edition
#RustLang #Rust #RustProgramming #OReilly #Learning
November 14, 2025 at 3:19 PM
Always love when textbook authors let their creativity (and sneaky humor) shine through in the code examples.
From O'Reilly's Programming Rust, 2nd Edition
#RustLang #Rust #RustProgramming #OReilly #Learning
From O'Reilly's Programming Rust, 2nd Edition
#RustLang #Rust #RustProgramming #OReilly #Learning
Problem solved! 🎉
#DevOps #ContinuousIntegration #Rust #TechTips
Reference: docs.github.com/en/actions/r...
4/4
#DevOps #ContinuousIntegration #Rust #TechTips
Reference: docs.github.com/en/actions/r...
4/4
Workflow commands for GitHub Actions - GitHub Docs
You can use workflow commands when running shell commands in a workflow or in an action's code.
docs.github.com
November 13, 2025 at 3:37 PM
Problem solved! 🎉
#DevOps #ContinuousIntegration #Rust #TechTips
Reference: docs.github.com/en/actions/r...
4/4
#DevOps #ContinuousIntegration #Rust #TechTips
Reference: docs.github.com/en/actions/r...
4/4
The fix is simple but not obvious. Before running cargo commands, edit the $GITHUB_PATH variable to append to the system PATH:
echo "/root/.cargo/bin" >> "$GITHUB_PATH"
3/4
echo "/root/.cargo/bin" >> "$GITHUB_PATH"
3/4
November 13, 2025 at 3:36 PM
The fix is simple but not obvious. Before running cargo commands, edit the $GITHUB_PATH variable to append to the system PATH:
echo "/root/.cargo/bin" >> "$GITHUB_PATH"
3/4
echo "/root/.cargo/bin" >> "$GITHUB_PATH"
3/4
Real example:
1. Pre-install cargo on runner for Rust builds
2. Test with `cargo version` - works!
3. Run GitHub Action with `cargo build`
4. 😱 Error: `cargo: command not found`
2/4
1. Pre-install cargo on runner for Rust builds
2. Test with `cargo version` - works!
3. Run GitHub Action with `cargo build`
4. 😱 Error: `cargo: command not found`
2/4
November 13, 2025 at 3:36 PM
Real example:
1. Pre-install cargo on runner for Rust builds
2. Test with `cargo version` - works!
3. Run GitHub Action with `cargo build`
4. 😱 Error: `cargo: command not found`
2/4
1. Pre-install cargo on runner for Rust builds
2. Test with `cargo version` - works!
3. Run GitHub Action with `cargo build`
4. 😱 Error: `cargo: command not found`
2/4
🔧 #GitHubActions Tip: Watch Out for System PATH Resets!
When using self-hosted runners, GitHub Actions resets the system PATH when executing jobs. This can break your workflow if you've pre-installed dependencies on your runner.
1/4
When using self-hosted runners, GitHub Actions resets the system PATH when executing jobs. This can break your workflow if you've pre-installed dependencies on your runner.
1/4
November 13, 2025 at 3:36 PM
🔧 #GitHubActions Tip: Watch Out for System PATH Resets!
When using self-hosted runners, GitHub Actions resets the system PATH when executing jobs. This can break your workflow if you've pre-installed dependencies on your runner.
1/4
When using self-hosted runners, GitHub Actions resets the system PATH when executing jobs. This can break your workflow if you've pre-installed dependencies on your runner.
1/4
2. 🎓 Must-read Books:
- "Programming Rust" (O'Reilly) - great companion to The Book
- "Rust in Action" - practical systems programming projects
Pro-tip: Your local library might have these! 📖
- "Programming Rust" (O'Reilly) - great companion to The Book
- "Rust in Action" - practical systems programming projects
Pro-tip: Your local library might have these! 📖
November 12, 2025 at 6:20 PM
2. 🎓 Must-read Books:
- "Programming Rust" (O'Reilly) - great companion to The Book
- "Rust in Action" - practical systems programming projects
Pro-tip: Your local library might have these! 📖
- "Programming Rust" (O'Reilly) - great companion to The Book
- "Rust in Action" - practical systems programming projects
Pro-tip: Your local library might have these! 📖