@darcy

@vltpkg Founder & Chief End-User Officer Prev: @GitHub @npmjs Staff EM & @Themify Co-Founder Proudly 🇨🇦 & investing here...

 Toronto
darcyclarke.me
Joined November 2008
  • Tweets9.3K
  • Following2.2K
  • Followers6.1K
469Media
Darcy Clarke retweeted
Ben Vinegar
@bentlegenOct 21
Waterloo grads btw
Blacksmith
@useblacksmithOct 21
Replying to @sequoia
@sequoia is leading our Series C at a $1B valuation. Since January, we’ve gone from running 5M CI jobs a week to over 90M. Agents are writing an order of magnitude more code, and all of it still needs to be built and tested before it ships.
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Darcy Clarke retweeted
Socket
@SocketSecurityOct 21
.@vltpkg 1.5.0 links agent skills from your dependencies to coding agents, with versions pinned by your lockfile. The default skills filter uses Socket data to exclude packages flagged as malware before their instructions reach your agents. socket.dev/blog/vlt-skills

vlt 1.5.0 Adds Agent Skills Management

vlt 1.5.0 links skills from JavaScript dependencies to coding agents, with lockfile versioning and Socket data to filter out known malicious packages.

socket.dev
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Replying to @sequoia
@sequoia is leading our Series C at a $1B valuation. We started Blacksmith in 2024 to make CI faster and less painful. In January we ran 5 million CI jobs a week. Today it's over 90 million and growing, and we’re still early.
Line chart of weekly CI jobs run on Blacksmith, growing from 5.4M in January to 90.5M in October 2026.

ALT Line chart of weekly CI jobs run on Blacksmith, growing from 5.4M in January to 90.5M in October 2026.

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Darcy Clarke retweeted
Ruy Adorno@ruyadornoOct 20
🚀 Just shipped a new `vlt skills` cmd as part of v1.5.0 of the vlt CLI so that we can properly manage these skills that are already being shipped in packages.
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Darcy Clarke retweeted
Oliver Medhurst
@CanadaHonkOct 19
in the next version of Porffor, Test262 compliance leaps to 96%! this marks a milestone where Node compat and performance finally become major blockers
"porffor passes 96.05% of test262" with a graph showing progress over time

ALT "porffor passes 96.05% of test262" with a graph showing progress over time

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Darcy Clarke retweeted
NodeConf EU@NodeConfEUOct 15
🎥 The NodeConf EU 2026 talks are now online! Missed a talk or want to revisit something that caught your attention? Now’s your chance! All the talks are available on our YouTube channel youtube.com/@nodeconfeu #NodeConfEU #NodeJS #TechCommunity

nodeconfeu

youtube.com
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Darcy Clarke retweeted
Ruy Adorno@ruyadornoOct 15
🚀 [email protected] is out with faster installs for macos and a new `--save-types` option to automatically add type dependencies.
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My thoughts on the Deno acquisition.... – at Mississauga, Ontario
vlt /vōlt/
@vltpkgOct 15
I thought I'd share some of my thoughts/feelings about the recent Deno acquisition... tl;dr competition is a very good thing & we're all better off because people take risks to innovate & disrupt the status quo. [link below]
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Darcy Clarke retweeted
vlt /vōlt/
@vltpkgOct 13
The #vlt client now has an 'outdated' command! Read all about it: vlt.io/blog/vlt-outdated What do you want from an 'outdated' command?

vlt outdated | vlt /vōlt/

We shipped the "vlt outdated" command. Find out what packages need upgrading and if you're vulnerable.

vlt.io
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I have ideas for what could fill in some of those blanks...
Christoffer Bjelke
@chribjelOct 9
Cloudflare has Deno Anthropic has Bun Vercel has ??? OpenAI has ??? ??? has Node
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Darcy Clarke retweeted
Charlie Marsh
@charliermarshOct 8
hyperfine 2.0 is out now! It includes support for alternative performance metrics like peak memory usage, CPU cycles, and more.
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Your package manager is faster with vlt.io - I think it's time to break up with npm. – at Mississauga, Ontario
luke@lukekarrysOct 6
Replying to @darcy @vltpkg
on a next app and an express api we're seeing clean installs take 20%-70% less time without changing package managers
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Darcy Clarke retweeted
luke@lukekarrysOct 6
on the ⚡️@vltpkg ⚡️registry we serve metadata that is 70% smaller which is one reason (out of many!) that we're able to do clean installs in 20-70% less time when you point to our registry vs npmjs․org. i wrote about how we did it: vlt.io/blog/registry-metadat…

How we made registry metadata 70% smaller | vlt /vōlt/

Package managers download megabytes of package metadata on every clean install. Here is how vlt.io serves the same installs at a fraction of the size.

vlt.io
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Darcy Clarke retweeted
ComputeSDK
@computesdkOct 1
Providers have idle compute. Buyers pay list price. We built a market for compute — bill by the second, minute, hour, or day. Sign up for early access is open.
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Darcy Clarke retweeted
Pooya Parsa 🇯🇵
@_pi0_Sep 30
Replying to @darcy @AhmadNassri @vltpkg
Added vlt to upm benchmarks also it got faster thanks to the findings from vlt.sh bench suite 🫡 xitter.cf/_pi0_/status/210524018…
Pooya Parsa 🇯🇵
@_pi0_Sep 30
📦 upm 1.3: - Faster - Better hoisting - Consumes less resources on large repos - Minimal CLI progress bar + an onProgress API - Matches native-scores in independent @vltpkg benchmarks* (3.4ms/pkg => 2ms/pkg on average) *Benchmark results vary by hardware and scenario. upm is by far the smallest.
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Darcy Clarke retweeted
NodeConf EU@NodeConfEUSep 9
Shoutout to all #NodeConfEU 2026 #Sponsors and #Friends! Thank you! 💛 Your partnership is helping us create something truly special in the #Node.js #community! Our Sponsors 🙏 @Cloudflare @platformatic @SocketSecurity @nxtedition @ZephyrCloudIO @tether
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Line continues to go down - we're the fastest registry & working on the client
Ruy Adorno@ruyadornoSep 25
Replying to @ruyadorno
for now, this new strategy helps with cutting down ci times on linux machines
chart showing the evolution of the vlt CLI over time

ALT chart showing the evolution of the vlt CLI over time

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Darcy Clarke retweeted
Ruy Adorno@ruyadornoSep 25
🚀 A new v1.2.0 of the vlt CLI is out, bringing a new global store strategy to the client!
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Darcy Clarke retweeted
vlt /vōlt/
@vltpkgSep 24
Your private JavaScript registry can now publish to the public. Public packages are now GA. Publish and install the packages you want to share with the ecosystem. Read the full announcement here ↓ vlt.io/blog/public-packages

Public Packages | vlt /vōlt/

Explore the JavaScript ecosystem without an account, and publish packages from your own registry for anyone to install.

vlt.io
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Darcy Clarke retweeted
Ruy Adorno@ruyadornoSep 22
vlt.io ⚡️ cutting install times everywhere

Home | vlt /vōlt/

Package registries for teams that move fast

vlt.io
cody
@codybrouwersSep 22
Some more data for CI cold installs after switching to vlt's registry from npm. 35% faster at p90!
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