I do stuff and I like to make javascript/go/rust fast https://teapaw.org/t.co/pcmG2YD8ss
Warsaw
Joined October 2019
- Tweets533
- Following625
- Followers79
- Likes6.3K
DarkGL retweeted
So I found you can instantly ~2x* your GitHub CI speed for free
GH added parallel actions.
But AI usually misses it since it's too new 😱
* Depends on what you're doing, just ask AI to benchmark
github.blog/changelog/2026-0…
DarkGL retweeted
Prompt of the day:
/retro read my last 10 coding agent sessions and find ways to make my repo easier to navigate. Find where agents take too long to find relevant information, or rely on out-of-date docs.
Improving navigability is such an underrated way to save tokens.
DarkGL retweeted
found this resource last night, absolutely no idea who'd sit down and build such a thing
learn-inference.com
DarkGL retweeted
You can test it yourself on your scripts using
node --trace-opt --trace-deopt test.js
This will show which functions of your code are getting JIT compiled or not. And absolute majority of the functions that you have will stay interpreted. Just because it is faster.
DarkGL retweeted
Wrote up a practical introduction to SIMD using a real example from Ghostty. SIMD has a reputation for being complex, but the common case follows a simple, repeatable shape and shouldn’t be scary! Everyone should know at least this much. mitchellh.com/writing/everyo…
DarkGL retweeted
WordPress is SLOW (usually) but... it doesn't have to be.
After working with WordPress for 15+ years as the plugin developer - I've picked a thing or two (or 30) about WordPress performance.
And it's all beyond the obvious:
"Install caching plugin"
and
"Buy a $300/mo hosting" ( this is bullshit btw. if you're paying more than $20-50/mo you're being ripped hard)
So I wrote a piece about it. It's very low-level and technical mind you, but maybe you'll find something useful there.
marcindudek.dev/blog/30-word…
DarkGL retweeted
Google has shipped a CLI for Google Workspace (Drive, Gmail, Calendar, Sheets, Docs, …) Huge!
Written in Rust, distributed through npm & skills.sh
$ npm i -g @googleworkspace/cli
$ npx skills add github:googleworkspace/cli
2026 is the year of Skills & CLIs
github.com/googleworkspace/c…
DarkGL retweeted
Open source is dead.
So I released an open source CI runner that's 100% compatible with GitHub Actions, and runs on your own machine. 0ms cache, and super fast.
It has a unique feature called "pause on failure" that pauses the current step, allows you to fix it, when you do you re-run just that step. The code is copied over and loop and iterate. Super fast.
agent-ci.dev
DarkGL retweeted
TIL you can pull the backlinks to any domain for free (instead of using a service that charges hundreds a month) using Common Crawl's web graph. Wrote a tiny bash script:
gist.github.com/retlehs/cf0a…
DarkGL retweeted
In case you missed it, Cloudflare has a new MCP server.
Full API coverage, tiny context footprint.
github.com/cloudflare/mcp
DarkGL retweeted
FPScanner v1.0.0 is out 🤖🕵️
Open source browser fingerprinting & bot detection library.
Repo: github.com/antoinevastel/fps…
I originally built it during my PhD ~9 years ago. Recently revived it because scraping + automation got much easier, but solid open tooling is still limited.
DarkGL retweeted
If you want to use multiple gpu and cpus to run the same: github.com/iii-hq/n-autorese…
DarkGL retweeted
Bad AGENTS.md files can make your coding agent worse and cost you tokens.
Here's a prompt you can use to clean them up - PLUS a full guide for folks wanting to learn more.
Enjoy: aihero.dev/s/KQLczQ
DarkGL retweeted
Really enjoyed reading this post about http access to databases and the performance tradoffs. /ht @PlanetScale for posting this research. 😅🤯 planetscale.com/blog/faster-…
DarkGL retweeted
We just shipped one of the coolest free database perf tools
It's a SQL execution plan visualizer which helps you spot things like a missing index, full-table scan, or inefficient join
Just paste the EXPLAIN output and find out why your query is slow:
explain.datadoghq.com
DarkGL retweeted
Hands-On Introduction to Unikernels 🛠️
Containers, VMs, microVMs, and Unikernels are all isolated execution environments. But some are better for one class of use cases, while others are better for another.
VMs are the heaviest (need more space, and take longer time to start up), but they are also the most versatile.
Containers are probably the fastest and most handy, but their isolation is the weakest, and their applicability is more limited.
MicroVMs (e.g., Firecracker) take the niche between containers and VMs - faster than VMs and more isolated than containers, yet usually more limited than traditional VMs, and the tooling is much less handy than for traditional Linux containers.
But what about Unikernels? Are they closer to VMs or containers? How hard or easy is it to create and run your own? And what niche do they take?
You can learn all of it and more in the just-published hands-on intro to Unikernels by a debuting iximiuz Labs author, Antoine Cotten 👏
labs.iximiuz.com/tutorials/u…
DarkGL retweeted
🎉 The codemods to migrate Express to version 5 are now available on codemod.com!
👉️ Run the recipe: npx codemod@latest @expressjs/v5-migration-recipe
👉️ More codemods here: codemod.link/express
DarkGL retweeted
Major performance improvements are landing in Node.js, thanks to Nikita Skovoroda.
• Buffer#toString() up to 10× faster on non-ASCII (also impacts UTF-8 TextDecoder)
• Buffer#toString() up to 2× faster on ASCII
• TextDecoder (windows-1252 / latin1 / ascii): 25× faster on ASCII and up to 100× on non-ASCII
• Other single-byte encodings: ~27× faster on ASCII, with smaller gains on non-ASCII
Relevant PRs:
* github.com/nodejs/node/pull/…
* github.com/nodejs/node/pull/…
* github.com/nodejs/node/pull/…