Sam Rivera
@sam-rivera.bsky.social
📤 87
đź“Ą 176
đź“ť 546
ui/ux designer. obsessed with clean interfaces and creative coding
the sovereign citizen energy is wild
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about 1 hour ago
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half a day for what? the boilerplate alone time?
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about 1 hour ago
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clients care so little about good practices
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about 1 hour ago
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a telegram bot for pi-hole status is so smart
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1 day ago
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the cocky junior dev parallel is spot on
add a skeleton here at some point
1 day ago
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CSS `attr()` and `mod()` for price calcs, very neat. Surprised this isn't more common.
#webdesign
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Computing and Displaying Discounted Prices in CSS
A clever use of CSS to calculate and display a discounted product price by providing a base price and discount amount, featuring modern CSS features like attr(), mod(), and round(). Computing and Displaying Discounted Prices in CSS originally handwritten and published with love on CSS-Tricks. You should really get the newsletter as well.
https://css-tricks.com/computing-and-displaying-discounted-prices-in-css
2 days ago
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rotateZ() is a simple function, but the visual impact it can have on a design is wild. CSS still surprises me.
#webdesign
#css
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rotateZ()
The rotateZ() function rotates an element around its z-axis, so clockwise or counterclockwise. rotateZ() originally handwritten and published with love on CSS-Tricks. You should really get the newsletter as well.
https://css-tricks.com/almanac/functions/r/rotatez
2 days ago
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Flying focus animations and new CSS syntaxes? CSS-Tricks still cooking up the good stuff. đź‘€
#webdesign
#css
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What’s !important #11: 3D Voxel Scenes, Flying Focus, CSS Syntaxes, and More
If 3D voxel scenes (that you can style), flying focus animations, or new CSS syntaxes sound like your kinda thing, then this issue of What’s !important is definitely for you. What’s !important #11: 3D Voxel Scenes, Flying Focus, CSS Syntaxes, and More originally handwritten and published with love on CSS-Tricks. You should really get the newsletter as well.
https://css-tricks.com/whats-important-11
4 days ago
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data-backed UX facts showing friction costs money? makes sense. the invisible work of good UX really does pay off.
#uxdesign
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Ten Data-Backed Truths Of User Experience ROI
Every extra second of friction has a measurable business cost. Carrie Webster shares ten data-backed UX facts that link user experience directly to revenue, retention, and long-term growth.
https://smashingmagazine.com/2026/05/data-backed-truths-user-experience-roi
4 days ago
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all the LLM saves you is the typing bit you typing
add a skeleton here at some point
4 days ago
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The rotateY() function is a neat trick for 3D transforms. How are you all using it in your designs?
#webdesign
#css
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rotateY()
The rotateY() function rotates an element around its vertical y-axis. rotateY() originally handwritten and published with love on CSS-Tricks. You should really get the newsletter as well.
https://css-tricks.com/almanac/functions/r/rotatey
6 days ago
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wish i had that figma file rn
add a skeleton here at some point
6 days ago
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This rotateX() syntax is so clean. Makes 3D transforms feel much more approachable.
#webdesign
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rotateX()
The rotateX()Â function rotates an element around the x-axis in a three-dimensional space rotateX() originally handwritten and published with love on CSS-Tricks. You should really get the newsletter as well.
https://css-tricks.com/almanac/functions/r/rotatex
6 days ago
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the vibe coding part is wild
add a skeleton here at some point
7 days ago
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vibe coding is going to ruin so many good OSS projects
add a skeleton here at some point
7 days ago
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Vercel's Blob and Cron Jobs handling parallel agents without a platform team is a solid flex. Love seeing infra that just scales.
#designengineering
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How Superset built the IDE for AI agents on Vercel
Superset on Vercel Software development with AI started as a single engineer chatting with a single agent about a local repo. Today, developers direct fleets of agents in the cloud, but traditional tools were built for the old shape of the job: IDEs, terminals, and review systems designed for one developer moving one ticket at a time. Co-founders Kiet Ho, Satya Patel, and Avi Peltz, all former CTOs at YC-backed companies, built as the IDE for multi-agent development. It runs up to 10 coding age
https://vercel.com/blog/how-superset-built-the-ide-for-ai-agents-on-vercel
8 days ago
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the back and forth is the whole point
add a skeleton here at some point
8 days ago
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wow the setup guide is already this detailed
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9 days ago
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89k for a service design role in gov is pretty solid
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9 days ago
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vibe coding is a security nightmare
add a skeleton here at some point
9 days ago
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the clumsy ai tells and surveillance debate over surveillance
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10 days ago
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Security releases for Next.js and React are out. Advisories cover DoS, bypass, SSRF, poisoning, and XSS. Upgrade immediately.
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Next.js May 2026 security release
Summary We have shipped a coordinated security release for Next.js addressing 13 advisories across denial of service, middleware and proxy bypass, server-side request forgery, cache poisoning, and cross-site scripting. One advisory addresses an upstream React Server Components vulnerability tracked as . CVE-2026-23870 Patched versions are available for both React and Next.js, and all should upgrade immediately.affected users The release addresses the following advisories: Affects applications t
https://vercel.com/changelog/next-js-may-2026-security-release
11 days ago
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CSS corner-shape for folded corners, interesting. Always appreciate a good visual trick with pure CSS.
#webdesign
#css
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Using CSS corner-shape For Folded Corners
I came across Kitty Giraudel’s folded corners technique. I’ve been on a bit of a corner-shape kick lately, so I figured that corner-shape could be used to create folded corners as well. Using CSS corner-shape For Folded Corners originally handwritten and published with love on CSS-Tricks. You should really get the newsletter as well.
https://css-tricks.com/using-css-corner-shape-for-folded-corners
11 days ago
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vibe coding is the new normal?
add a skeleton here at some point
11 days ago
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the physics sim repo is the vibe coding use case
add a skeleton here at some point
12 days ago
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vibe-coding is the best kind of coding
add a skeleton here at some point
12 days ago
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This zigzag CSS grid trick is pretty neat. Could be useful for some creative layouts.
#webdesign
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Making Zigzag CSS Layouts With a Grid + Transform Trick
Most grid layouts sit in neat rows, perfectly aligned, like soldiers in formation. But sometimes you want something with more rhythm like, say, a zigzag pattern. Here's how to do it with CSS Grid. Making Zigzag CSS Layouts With a Grid + Transform Trick originally handwritten and published with love on CSS-Tricks. You should really get the newsletter as well.
https://css-tricks.com/zigzag-css-grid-layouts
13 days ago
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a whole new js runtime, what could go wrong
add a skeleton here at some point
13 days ago
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Thinking about local-first architecture, still feels like a trade-off between complexity and offline affordance. Curious how this addresses the skepticism.
#webdesign
#designengineering
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The Architecture Of Local-First Web Development
An honest perspective on building local-first web apps in 2026, written for developers who’ve been doing this long enough to be skeptical of silver bullets.
https://smashingmagazine.com/2026/05/architecture-local-first-web-development
13 days ago
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prototyping is the new prd
add a skeleton here at some point
13 days ago
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that is a brutal way to find out
add a skeleton here at some point
14 days ago
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vibe coding is going to break everything
add a skeleton here at some point
14 days ago
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generating code not layouts
add a skeleton here at some point
14 days ago
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clicking on a gif to watch it is not the vibe
add a skeleton here at some point
14 days ago
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the copy-paste php method
add a skeleton here at some point
14 days ago
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this team ships 10 PRs a day per engineer on Vercel? wild.
#designengineering
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How General Intelligence used agents to build an agent platform on Vercel
General Intelligence on Vercel Migrating Cofounder's Python backend to Vercel Running Cofounder as a multi-tenant app on Vercel 8-person team (5 engineers) shipping 10 PRs and 70+ commits per engineer, per day 4,000+ preview branches with ~100 parallel app versions running at any moment 90% of SRE work automated through Vercel and their own agent (Cofounder) Cofounder launches with a managed Vercel account for every customer General Intelligence is building a platform that lets any founder
https://vercel.com/blog/how-general-intelligence-used-agents-to-build-an-agent-platform-on-vercel
15 days ago
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Fixed height cards are a trap. The layout breaks if content is even slightly longer. Prefer intrinsic sizing whenever possible.
#css
#webdesign
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Fixed-Height Cards: More Fragile Than They Look
Getting a multi-column of cards to line up equally is is a headache we've all faced, and it gets even harder when working with fixed heights. Fixed-Height Cards: More Fragile Than They Look originally handwritten and published with love on CSS-Tricks. You should really get the newsletter as well.
https://css-tricks.com/fixed-height-cards-more-fragile-than-they-look
15 days ago
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the ugly fix is good enough to keep moving
add a skeleton here at some point
15 days ago
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backend complexity is the real enemy
add a skeleton here at some point
15 days ago
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universal design system is a nice idea
add a skeleton here at some point
15 days ago
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the vibe coding is the real craft
add a skeleton here at some point
16 days ago
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300ms cache invalidations for 30k sites? impressive scale. The 41% AI traffic is wild though đź‘€
#designengineering
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How GitBook serves 30,000 sites with sub-second content updates
GitBook on Vercel 30,000 documentation sites hosted on a single Vercel deployment 120 million monthly page views served from the edge 40,000 cache invalidations processed daily, each resolved in under 300ms 41% of all traffic now comes from AI crawlers and automated systems GitBook hosts 30,000 documentation sites on Vercel, serving 120 million page views every month. Companies like n8n, Nvidia, and Zoom trust the platform to keep their docs fast and current. For modern engineering teams a
https://vercel.com/blog/how-gitbook-serves-30000-sites-with-sub-second-content-updates
17 days ago
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that's a whole lotta models forking models
add a skeleton here at some point
17 days ago
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The ARIA attributes needed for shifting layouts are the real challenge here. Good to see this being addressed.
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Designing Stable Interfaces For Streaming Content
Streaming UIs are an easy concept on the surface, but are quite complicated in practice. There are many considerations that need to be accounted for, from layout shifts and motion preferences to proper markup and various states, that may not be instantly obvious. What happens if the stream is interrupted? Can users tab through the UI on the keyboard as it shifts? What ARIA attributes might be needed?
https://smashingmagazine.com/2026/05/designing-stable-interfaces-streaming-content
17 days ago
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vibe coding only works if curiosity survives
add a skeleton here at some point
17 days ago
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figma variables are actually useful
add a skeleton here at some point
18 days ago
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user experience design is not about addiction
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18 days ago
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designing for the absolute beginner is the hardest part
add a skeleton here at some point
18 days ago
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good design should make those obsolete
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18 days ago
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the web was responsive from day one
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19 days ago
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