Also: Curl ends bug bounty after AI spam overwhelmed maintainers, Karpathy shifts to 80% AI-assisted coding, economic arguments for why SaaS survives AI disruption, and more.

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Welcome, Developers! πŸ‘‹

This issue we're covering CSS layout fundamentals from normal flow to Grid, curl's bug bounty shutdown after AI spam overwhelmed maintainers, Karpathy's workflow shift to 80% AI-assisted coding, leadership lessons on making mistakes cheap through curiosity, and why replacing SaaS with internal tools rarely makes economic sense.

From our sponsor: WorkOS

The Fastest Growing AI Companies Choose WorkOS

AI companies are scaling faster than ever and hitting enterprise requirements far earlier in their lifecycle.


SSO, SCIM, RBAC, audit logs, compliance. These are non-negotiable for enterprise customers, and expensive and difficult to build and maintain in-house.


That’s why OpenAI, Anthropic, Cursor, Vercel, and more use WorkOS to power authentication, identity, and security. It's the infrastructure layer that makes applications enterprise ready without slowing teams down.

Build faster with WorkOS β†’

πŸ”– The Reading Room

Articles we have hand-picked for you:

Understanding the fundamentals of CSS Layout

This guide breaks down how CSS really works, starting with normal flow and building up to Flexbox and Grid. Learn about the box model, positioning schemes, stacking contexts, and why everything in CSS is actually a box.

By Kilian Valkhof β†’

The end of the curl bug-bounty

Curl's bug bounty program wraps up after paying over $100,000 in rewards for 87 confirmed vulnerabilities since 2019. The never-ending stream of AI submissions took a serious mental toll on maintainers and saw confirmation rates plummeting from 15% to below 5% in 2025.

By Daniel Stenberg β†’

A few random notes from Claude coding quite a bit

AI coding assistants triggered a dramatic shift in December: Karpathy's workflow flipped from 80% manual coding to 80% AI agent coding in just weeks. Despite requiring mental adjustment, operating software in large "code actions" through natural language proves too powerful to resist. 

By Andrej Karpathy β†’

Curiosity is the first-step in problem solving.

Being wrong is inevitable in leadership. Rather than trying to avoid mistakes entirely, focusing on making them cheap is more practical. Showing curiosity isn't about avoiding accountability or forcing consensus in decision making. It's about starting discussions by acknowledging you might be missing important information. 

By Will Larson β†’

SaaS, widely misunderstood. AI is not replacing SaaS yet

Despite AI-driven market selloffs, replacing SaaS makes little economic sense. Aled argues that building internally costs more and delivers inferior products compared to established SaaS providers. Companies attempting to replace SaaS with internal tools risk losing focus on their core competency.

By Aled β†’

⏳ Back in Time

Most clicks from last newsletter:

πŸ”— The Link Lounge 

Unordered finds from around the web:

Find something cool? You can send us links to feature here via email.

🧰 The Toolbox

Tools and products we're excited about today:

ReliCSS

Stuart Robson introduces ReliCSS, a browser-based CSS scanning tool that identifies outdated browser hacks and historical artifacts in legacy codebases, assigning severity levels to help developers prioritize refactoring and modernization through what he calls Front-End Archaeology.

Learn more β†’

LibPDF

LibPDF is a new TypeScript PDF library built for real-world documents. It features lenient parsing, incremental saves that preserve signatures, complete encryption and form handling capabilities, and a TypeScript-first API. 

Learn more β†’

Skip

Skip is now free and open source, removing all licensing requirements for building Swift and SwiftUI apps on Android. 

Learn more β†’

LLM Studio 0.4

LLM Studio is one of the more convenient ways to run local LLMs. The newer version 0.4.0 introduces llmster for server deployment, parallel requests with continuous batching, stateful REST API with MCP support, and refreshed UI featuring chat export, split view, and developer mode.

Learn more β†’

The Fastest Growing AI Companies Choose WorkOS

AI companies are scaling faster than ever and hitting enterprise requirements far earlier in their lifecycle.


SSO, SCIM, RBAC, audit logs, compliance. These are non-negotiable for enterprise customers, and expensive and difficult to build and maintain in-house.


That’s why OpenAI, Anthropic, Cursor, Vercel, and more use WorkOS to power authentication, identity, and security. It's the infrastructure layer that makes applications enterprise ready without slowing teams down.

Build faster with WorkOS β†’

🎀 Your Voice

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