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<div style="display: none; max-height: 0px; overflow: hidden;">Communication has become the most important skill for software engineers. This is due to the fast advancement of AI coding agents </div>
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<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fworkos.com%2Fdocs%2Fpipes%3Futm_source=tldrdev%26utm_medium=newsletter%26utm_campaign=q12026%26utm_content=no_rebuild/1/0100019bd627ec7f-b45a3990-d3d1-450c-9fb8-3662352fa7a3-000000/APMEBpuwdJjKrmIAyrwdDfaXotQrUVLU5HDhmBTMezw=440"><img src="https://images.tldr.tech/workos50.png" valign="middle" style="vertical-align: middle !important; height: 100%;" alt="WorkOS"></a></td></tr></tbody></table>
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<h1><strong> TLDR Dev <span id="date">2026-01-19</span></strong></h1>
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<strong>Ship Third-Party Integrations Without Rebuilding OAuth (Sponsor)</strong>
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Connecting user accounts to third-party APIs always comes with the same plumbing: OAuth flows, token storage, refresh logic, and provider-specific quirks.<br><br><a class="in-cell-link" href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fworkos.com%2Fdocs%2Fpipes%3Futm_source=tldrdev%26utm_medium=newsletter%26utm_campaign=q12026%26utm_content=product_name_link/1/0100019bd627ec7f-b45a3990-d3d1-450c-9fb8-3662352fa7a3-000000/Mk1BGVz7Zb4BlPuaTvP75jKvkE00VUg3rguaZW5qxA4=440" rel="noopener noreferrer nofollow" target="_blank"><span>WorkOS Pipes</span></a> removes that overhead. Users connect services like GitHub, Slack, Google, Salesforce, and other supported providers through a <a class="in-cell-link" href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fworkos.com%2Fdocs%2Fwidgets%2Fpipes%3Futm_source=tldrdev%26utm_medium=newsletter%26utm_campaign=q12026%26utm_content=drop_in_widget/1/0100019bd627ec7f-b45a3990-d3d1-450c-9fb8-3662352fa7a3-000000/4aA6xYQ9KSJyY3nzi0j4tiKqGFVxZII9FSg-nSdeDhE=440" rel="noopener noreferrer nofollow" target="_blank"><span>drop-in widget</span></a>. Your backend requests a valid access token from the Pipes API when needed, while Pipes handles credential storage and token refresh.
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<br><a class="in-cell-link" href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fworkos.com%2Fdocs%2Fpipes%3Futm_source=tldrdev%26utm_medium=newsletter%26utm_campaign=q12026%26utm_content=simplify_integrations_cta/1/0100019bd627ec7f-b45a3990-d3d1-450c-9fb8-3662352fa7a3-000000/uQQvYlHJC5Jp_6cxIvT3o4hR9Odloiogb_njiRCljxQ=440" rel="noopener noreferrer nofollow" target="_blank"><span>Simplify integrations with WorkOS Pipes →</span></a>
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<div style="text-align: center;"><span style="font-size: 36px;">🧑💻</span></div>
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<strong>Building a better Bugbot (7 minute read)</strong>
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<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
Bugbot is Cursor's AI-powered code review agent for identifying logic bugs, performance issues, and security vulnerabilities in pull requests. Its development evolved from qualitative assessments to a systematic, AI-driven resolution rate metric, with improvements through methods like parallel passes with majority voting and a shift to an agentic architecture creating the largest performance gains.
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<strong>A Social Filesystem (35 minute read)</strong>
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A “social filesystem" paradigm addresses the problem of user data being locked within social media applications. In this model, each user maintains a portable "everything folder" (repository) containing all their social interactions as self-owned records, defined by shared schemas. User identity and data location are made permanent and host-agnostic through Decentralized Identifiers and `at://` URIs, creating verifiable links across a distributed system.
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<strong>Finding and Fixing a 50,000 Goroutine Leak That Nearly Killed Production (8 minute read)</strong>
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A 50,000 goroutine leak in a WebSocket notification service gradually degraded production over 6 weeks, growing from 1,200 goroutines and 2.1GB RAM to 50,847 goroutines consuming 47GB RAM with 32-second latency. The leak was caused by three bugs: never calling context cancel functions when WebSocket connections closed, not stopping ticker objects in heartbeat goroutines, and not properly closing message channels. The fix involved adding proper WebSocket close handlers, connection monitoring, and making sure all resources (contexts, tickers, and channels) were properly cleaned up when connections died.
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<h1><strong>Opinions & Advice</strong></h1>
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<strong>Software engineers can no longer neglect their soft skills (2 minute read)</strong>
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Communication has become the most important skill for software engineers. This is due to the fast advancement of AI coding agents, which can now efficiently handle most non-trivial programming tasks. These formerly optional interpersonal skills are now non-negotiable.
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<strong>Tips for making the Performance Panel less overwhelming (7 minute read)</strong>
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Chrome's Performance Panel can be made less overwhelming by dimming third-party code to focus on first-party issues, using search functionality to find specific functions or files, adding annotations to document findings, using the Insights Panel for automated performance issue detection, and creating custom tracks with console.time() or the Performance Measure API to monitor specific functions.
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<strong>useOptimistic Won't Save You (8 minute read)</strong>
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<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
React 19's useOptimistic hook is helpful for implementing optimistic UI updates, but it is not a complete solution for the complexities introduced by concurrent React. Naive optimistic update implementations lead to race conditions and visual glitches. Even useOptimistic still suffers from issues like failing to prevent race conditions when requests complete out of order.
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<h1><strong>Launches & Tools</strong></h1>
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<strong>Add API key authentication to your SaaS with Clerk (Sponsor)</strong>
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Step-by-step guide to Clerk's API Keys beta. Generate secure keys, validate requests in Next.js API routes, build a management UI with rotation and revocation. Full code examples included.
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<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fgithub.com%2FiOfficeAI%2FAionUi%3Futm_source=tldrdev/1/0100019bd627ec7f-b45a3990-d3d1-450c-9fb8-3662352fa7a3-000000/lGZwFPa-BS9pN0W1GOdHlvUt0LwXxDWaAcTpdLUxc60=440">
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<strong>AionUi (GitHub Repo)</strong>
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<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
AionUi is a unified graphical interface designed to serve as a "Cowork" platform for various command-line AI tools like Gemini CLI, Claude Code, and more. It automatically detects and integrates these disparate AI agents, providing an environment that addresses common limitations such as unsaved conversations and single-session restrictions. AionUi has intelligent file management, multi-model support, and a preview panel for AI-generated results across nine different formats.
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<strong>memlab (Website)</strong>
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<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
memlab is a tool designed to analyze JavaScript heaps and identify memory leaks in both browser and Node.js environments. It allows users to define end-to-end test scenarios and run them via a command-line interface to find leaks and perform various memory analyses. The tool can analyze duplicated strings, check for unbound object growth, and offers a programming API for integrated memory analysis.
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<div style="text-align: center;"><strong><h1>Miscellaneous</h1></strong></div>
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