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[Other] Show HN: I Built DevTools for Blazor (Like React DevTools but for .NET) Hi HN! I&#x27;ve been working on developer tools for Blazor that let you inspect Razor components in the browser, similar to React DevTools or Vue DevTools.<p>The problem: Blazor is Microsoft&#x27;s frontend framework that lets you write web UIs in C#. It&#x27;s growing fast but lacks the debugging tools other frameworks have. When your component tree gets complex, you&#x27;re stuck with Console.WriteLine debugging.<p>What I built: A browser extension + NuGet package that:<p>Shows the Razor component tree in your browser Maps DOM elements back to their source components Highlights components on hover Works with both Blazor Server and WASM<p>How it works: The NuGet package creates shadow copies of your .razor files and injects invisible markers during compilation. These markers survive the Razor→HTML pipeline. The browser extension reads these markers to reconstruct the component tree.<p>Current status: Beta - it works but has rough edges. Found some bugs when testing on larger production apps that I&#x27;m working through. All documented on GitHub.<p>Technical challenges solved:<p>Getting markers through the Razor compiler without breaking anything Working around CSS isolation that strips unknown attributes Making it work with both hosting models<p>It&#x27;s completely open source:<p><a href="https:&#x2F;&#x2F;github.com&#x2F;joe-gregory&#x2F;blazor-devtools" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;joe-gregory&#x2F;blazor-devtools</a><p>Demo site where you can try it:<p><a href="https:&#x2F;&#x2F;blazordevelopertools.com" rel="nofollow">https:&#x2F;&#x2F;blazordevelopertools.com</a><p>Would love feedback, especially from anyone building production Blazor apps. What debugging pain points do you have that developer tools could solve?

[Other] Clojure Land – Discover open-source Clojure libraries and frameworks

[Other] Show HN: Dictly – Local, real‑time voice‑to‑text for macOS (sub‑100ms, no cloud) TL;DR: I built a native macOS dictation app that transcribes locally and instantly. Text appears as you speak (measured ~100 ms first‑character latency). No accounts, no servers, no tracking.<p>Links: • Website: <a href="https:&#x2F;&#x2F;dictly.app" rel="nofollow">https:&#x2F;&#x2F;dictly.app</a> • Mac App Store: <a href="https:&#x2F;&#x2F;apps.apple.com&#x2F;de&#x2F;app&#x2F;dictly-no-keys-just-clarity&#x2F;id6752733596">https:&#x2F;&#x2F;apps.apple.com&#x2F;de&#x2F;app&#x2F;dictly-no-keys-just-clarity&#x2F;id...</a> • Free download; optional Pro tier (pipelines, unlimited history, etc.)<p>What it does<p>Real‑time transcription — streaming text while you talk, not after you stop.<p>Quick‑Capture Overlay (macOS) — global hotkey, drop text into any app&#x2F;field.<p>Custom Pipelines — local post‑processing steps for cleanup, punctuation, or house style.<p>Dictionary Profiles — teach domain terms (names, brands, code tokens, etc.).<p>Local Analytics — see time saved vs typing (computed on device, never sent anywhere).<p>Why I built it<p>I wanted dictation that felt as immediate as typing and was trustworthy. Most tools stream audio to a server; I wanted something that never leaves the machine.<p>How it’s built (high‑level)<p>Swift + Apple speech&#x2F;ML frameworks. Streaming audio capture → on‑device recognition → local pipeline → paste into the active app. Works with Wi‑Fi off; there are no network requests in the transcription path.<p>What’s different vs built‑ins<p>Always on‑device + streaming with a global overlay that works in any app. Extensible, deterministic cleanup via pipelines (not a black‑box cloud). Per‑project dictionaries to tame jargon and proper nouns.<p>Numbers (early)<p>Latency: ~100 ms (first visible characters from speech onset) in typical conditions on modern Macs. Privacy: zero telemetry; no account; no background syncing. Everything stays local.<p>Trade‑offs (calling them out up front)<p>Accuracy depends on mic and environment (no surprise). For weird proper nouns&#x2F;jargon, you’ll want a dictionary profile. Heavy background noise will degrade results (pipelines can only do so much).<p>What I’m looking for from HN<p>Performance impressions on different hardware. Failure cases (accents, acronyms, coding, meetings). Pipeline ideas you’d actually use (e.g., Markdown formatting, code‑block guards, style rules). Integration wishes: CLI? Shortcut actions? Editor‑specific helpers?<p>I’m a solo dev. Happy to answer pointed questions and ship fixes fast. If you spot hand‑wavy claims, call them out.

[Other] Show HN: Diagram as code tool with draggable customizations In the past I&#x27;ve used declarative diagram generation tools like Mermaid.js a lot for quickly drawing up things but for presentations or deliverables I find that I have to then move the generated diagrams over to a tool like Lucidchart which allows full control of the organization and customization.<p>Therefore I am now working on this to combine the benefits of both into just one tool which can do both functions.<p>The project is certainly in the early stages but if you find yourself making architecture diagrams I&#x27;d love to hear your thoughts on the idea or even a Github issue for a feature request!<p>One of the workflows I&#x27;m targeting is when an AI generates the first draft of the diagram (all the LLMs know .mmd syntax) and then the user can then customize it to their liking which I think can drastically speed up making complex diagrams!

[Other] Agent Lightning: Train agents with RL (no code changes needed) <a href="https:&#x2F;&#x2F;microsoft.github.io&#x2F;agent-lightning&#x2F;stable&#x2F;" rel="nofollow">https:&#x2F;&#x2F;microsoft.github.io&#x2F;agent-lightning&#x2F;stable&#x2F;</a>

[Other] Torchcomms: A modern PyTorch communications API

[Other] Show HN: Shadcn/UI theme editor – Design and share Shadcn themes Hey, I built <a href="https:&#x2F;&#x2F;ShadcnThemer.com" rel="nofollow">https:&#x2F;&#x2F;ShadcnThemer.com</a> - a web app for creating and sharing themes for shadcn&#x2F;ui, made with my some of my favorites, Next.js 15, Tailwind CSS 4, Drizzle ORM, and Supabase.<p>The goal was to make it easy to visually design shadcn color themes, preview them live across various example UIs, and export them straight into your projects (as CSS or via the shadcn CLI registry command).<p>I had a bit of experience going into this because I built the Theme Studio for VS Code in the past, but it was fun using a modern stack and leveraging Cursor to help me along the way this time.<p>GitHub: <a href="https:&#x2F;&#x2F;github.com&#x2F;miketromba&#x2F;shadcn-themer" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;miketromba&#x2F;shadcn-themer</a>

[Database] Show HN: Centia.io – Open PostgreSQL/PostGIS back end for developers Built a developer-friendly BaaS around PostgreSQL + PostGIS. Instant APIs, real-time updates, self-hostable Docker image. Feedback welcome

[Other] Gitworkshop.dev – Collaborate on code over Nostr <a href="https:&#x2F;&#x2F;nips.nostr.com&#x2F;34" rel="nofollow">https:&#x2F;&#x2F;nips.nostr.com&#x2F;34</a>

[Other] Fast TypeScript (Code Complexity) Analyzer

[Other] Show HN: Wsgrok – one of many ngrok alternatives I built it for myself because ngrok didn&#x27;t let me add one more domain unless I paid $12 more. I probably should&#x27;ve looked for alternatives before building my own, but my grudge got in the way . Once I started, I wanted to make it better than the other options. Silly, I know. No one probably cares.<p>I plan to open source it sometime next year because I’ve got other projects to finish first. It&#x27;s free until I deplete my cloud credits, then it will switch to a tier-based model with a free option.

[Other] Pixi: Reproducible Package Management for Robotics

[CLI Tool] Show HN: The System Skill Pattern Hello HN!<p>I’ve been playing with Claude Skills and stumbled on a simple pattern for tiny, durable personal data systems:<p>* CLI: a small, self-contained executable<p>* SKILL.md: the operator guide (what to run, how to parse output, how to think about the system)<p>* SQLite: a local DB for persistent state<p>It’s nothing mind-blowing, but the ergonomics of this combo feel great.<p>If you define a process&#x2F;flow, Claude can &quot;turn the crank&quot; by running the CLI, accumulating context, and animating the system to life over time.<p>They’re also easy to share: you can distribute System Skills via Claude Code’s `&#x2F;plugin marketplace add &lt;repo&gt;`.<p>More details in the blog post and the toy Pomodoro System Skill reference implementation here:<p>Blog: <a href="https:&#x2F;&#x2F;www.shruggingface.com&#x2F;blog&#x2F;the-system-skill-pattern" rel="nofollow">https:&#x2F;&#x2F;www.shruggingface.com&#x2F;blog&#x2F;the-system-skill-pattern</a><p>Repo: <a href="https:&#x2F;&#x2F;github.com&#x2F;jakedahn&#x2F;pomodoro" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;jakedahn&#x2F;pomodoro</a><p>--<p>Curious whether any of this resonates. Also excited to hear any interesting System Skill ideas worth exploring!

[Other] Show HN: I built an 8-bit CPU simulator in Python from scratch I built a tiny 8-bit CPU simulator in Python to better understand how computers work at a low level. It visualizes registers, memory, and instructions in real-time, so you can actually see each operation as it happens. You can write simple assembly code and watch how the CPU executes it step by step.<p>The project is mainly for learning and experimentation, but I’d love feedback or ideas for improvement.

[Other] Show HN: Run a GitHub Actions step in a gVisor sandbox

[Other] Show HN: A fast, privacy-first image converter that runs in browser Hey HN<p>I built ImageConverter.dev because I got tired of “free” image converter sites that force uploads, or throttle conversions.<p>So I made a tool that runs 100% client-side — meaning your images never leave your device. It’s built for speed, simplicity, and privacy.<p>What it does<p>Convert images between JPG, PNG, WebP<p>Works offline once loaded (PWA support)<p>How it works<p>It uses the Canvas API and WebAssembly to handle conversions directly in the browser. There’s no upload, no tracking, no server costs, and it’s fast even on mid-range devices.<p>Why I built it<p>I wanted an instant, no-ads, privacy-safe way to handle images for my personal projects — something lightweight enough to replace desktop tools.<p>Try it<p><a href="https:&#x2F;&#x2F;imageconverter.dev" rel="nofollow">https:&#x2F;&#x2F;imageconverter.dev</a><p>Would love feedback from the community — especially on:<p>Performance on different browsers&#x2F;devices<p>Thanks for reading!

[Other] ChunkLLM: A Lightweight Pluggable Framework for Accelerating LLMs Inference

[Other] Show HN: Inspec – Specification scheduling software for interior designers Hi HN, I&#x27;m Nick and I built Inspec with my partner Caitlin (she&#x27;s the interior designer, I&#x27;m the developer).<p>Inspec lets interior designers create and manage FF&amp;E schedules - basically spec sheets listing everything that goes in a room before the furniture: flooring, paint, countertops, lighting, fixtures, etc.<p>This process is currently exclusively done using Excel, and while this works to some degree, it comes with a lot of manual work and clunkiness. When Caitlin started working remotely, I watched her deal with these issues daily. So I spent the past 9 months building a better solution.<p>Key Features:<p>- Realtime collaboration<p>- Revision control (versioning)<p>- Professional PDF exports<p>- QR codes to print out on-site for contractors, builders etc. to always have the latest version<p>- Completely customisable fields and a familiar workflow to Excel to keep learning curve small<p>When we first started building this we thought it was completely unique, but turns out there are 2 competitors. I think our positioning is quite different though as we seek to only replace this document creation, rather than overhaul the entire project management and try to be a complete solution. So that’s helped to guide our focus, but also validated that interior designers are looking to modernise their software.<p>Tech stack:<p>I used my SaaS boilerplate which is just a modified T3 stack template with everything set up just how I like it. So Next.js with the pages router, TS, Trpc, Prisma + PostgreSQL, and TailwindCSS. I’ve also got Pusher for realtime collaboration, Redis and BullMQ for keeping a seperate background worker for PDF and web scraping jobs.<p>I can’t imagine many interior designers are on HN, but figured I would share this for anyone who wants to take a look :) feedback always welcome! The landing page is at <a href="https:&#x2F;&#x2F;inspec.design" rel="nofollow">https:&#x2F;&#x2F;inspec.design</a>

[API/SDK] Show HN: Open-source TypeScript SDK for sending and operating iMessages

[Other] Show HN: FlowLens – MCP server for debugging with Claude Code Hi HN,<p>We often run into this with coding agents like Claude Code: debugging turns into copy-pasting logs, writing long explanations, and sharing screenshots.<p>FlowLens is an MCP server plus a Chrome extension that captures browser context (video, console, network, user actions, storage) and makes it available to MCP-compatible agents like Claude Code.<p>You can try it here: <a href="https:&#x2F;&#x2F;magentic.ai&#x2F;flowlens" rel="nofollow">https:&#x2F;&#x2F;magentic.ai&#x2F;flowlens</a><p>Any feedback—good, bad, or brutal—is welcome.