Show HN: Cachekit – High performance caching policies library in Rust
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Show HN: AI video generator that outputs React instead of video files
Show HN: AI video generator that outputs React instead of video files Hey HN! This is Mayank from Outscal with a new update. Our website is now live. Quick context: we built a tool that generates animated videos from text scripts. The twist: instead of rendering pixels, it outputs React/TSX components that render as the video.<p>Try it: <a href="https://ai.outscal.com/" rel="nofollow">https://ai.outscal.com/</a> Sample video: <a href="https://outscal.com/v2/video/ai-constraints-m7p3_v1/12-01-26-18-47-41" rel="nofollow">https://outscal.com/v2/video/ai-constraints-m7p3_v1/12-01-26...</a><p>You pick a style (pencil sketch or neon), enter a script (up to 2000 chars), and it runs: scene direction → ElevenLabs audio → SVG assets → Scene Design → React components → deployed video.<p>What we learned building this:<p>We built the first version on Claude Code. Even with a human triggering commands, agents kept going off-script — they had file tools and would wander off reading random files, exploring tangents, producing inconsistent output.<p>The fix was counterintuitive: fewer tools, not more guardrails. We stripped each agent to only what it needed and pre-fed context instead of letting agents fetch it themselves.<p>Quality improved immediately.<p>We wouldn't launch the web version until this was solid. Moved to Claude Agent SDK, kept the same constraints, now fully automated.<p>Happy to discuss the agent architecture, why React-as-video, or anything else.
Show HN: SubTrack – A SaaS tracker for devs that finds unused tools
Show HN: SubTrack – A SaaS tracker for devs that finds unused tools Hi HN,<p>I built SubTrack to help teams find unused SaaS tools and cloud resources before they silently eat into budgets.<p>The motivation came from seeing how hard it is to answer simple questions: – Which SaaS tools are actually used? – Which cloud resources are idle? – What will our end-of-month spend look like?<p>SubTrack connects to tools like AWS, GitHub, Vercel, and others to surface unused resources and cost signals from one place. Recently I added multi-account support, currency localization, and optional AI-based insights to help interpret usage patterns.<p>This is an early-stage project and I’m actively iterating. I’d really appreciate feedback—especially from people managing cloud or SaaS sprawl.
Show HN: A MCP for controlling terminal UI apps built with bubbletea and ratatui
Show HN: A MCP for controlling terminal UI apps built with bubbletea and ratatui so you can start vibe-coding your ad-hoc terminal dashboard. With session replay and mouse click support built-in.
Show HN: I made a Tailwind alternative for Preact
Show HN: I made a Tailwind alternative for Preact This is a small TailwindCSS alternative based on a css template literal. I was inspired by styled-components and EmotionCSS, which however do not work well with ViteJS and specifically Preact.<p>This provides a better experience than Tailwind, as you can use all CSS language features without learning new conventions while maintaining a per-component styling approach.<p>This also turns out to be more inspectable in the browser's dev-tools, as snippets are extracted as-is and are not fragmented across thousands of small classes.<p>I wanted something more optimized than other CSS-in-JS alternatives that generate CSS at runtime, so I created a ViteJS plugin for this. It extracts all style snippets, replaces them with classes like css-a1b2c3, and injects all the corresponding styles into a CSS file in place of an "@extracted-css" directive.<p>There is also a preact options hook that adds a custom "classList" attribute, which maps to clsx for easy class composition (similarly to VueJS, Svelte, etc.).<p>P.S. I know other frameworks exist, but I have really been enjoying using Preact for frontend development lately.
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