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[CLI Tool] Show HN: Parqeye – A CLI tool to visualize and inspect Parquet files I built a Rust-based CLI&#x2F;terminal UI for inspecting Parquet files—data, metadata, and row-group-level structure—right from the terminal. If someone sent me a Parquet file, I used to open DuckDB or Polars just to see what was inside. Now I can do it with one command.<p>Repo: <a href="https:&#x2F;&#x2F;github.com&#x2F;kaushiksrini&#x2F;parqeye" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;kaushiksrini&#x2F;parqeye</a>

[Other] Show HN: PrinceJS – 19,200 req/s Bun framework in 2.8 kB (built by a 13yo) Hey HN,<p>I&#x27;m 13, from Nigeria, and I just released PrinceJS — the fastest web framework for Bun right now.<p>• 19,200 req&#x2F;s (beats Hono&#x2F;Elysia&#x2F;Express) • 2.8 kB gzipped • Tree-shakable (cache, AI, email, cron, SSE, queue, test, static...) • Zero deps. Zero config.<p>Built in &lt; 1 week. No team. Just me and Bun.<p>Try it: `bun add princejs` GitHub: <a href="https:&#x2F;&#x2F;github.com&#x2F;MatthewTheCoder1218&#x2F;princejs" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;MatthewTheCoder1218&#x2F;princejs</a> Docs: <a href="https:&#x2F;&#x2F;princejs.vercel.app" rel="nofollow">https:&#x2F;&#x2F;princejs.vercel.app</a><p>Brutal feedback welcome. What&#x27;s missing?<p>– @Lil_Prince_1218

[Other] Show HN: Building WebSocket in Apache Iggy with Io_uring and Completion Based IO

[CLI Tool] Show HN: I build a strace clone for macOS Ever since I tested software on macOS, I deeply missed my beloved strace that I use when programs are missbehaving. macOS has dtruss but it&#x27;s getting locked down and more unusable with every machine. My approach uses the signed lldb binary on the system and re-implements the output you are know from the wonderful strace tool. I just created the tool yesterday evening, so it may have a few bugs, but I already got quiet a few integration tests and I am happy so far with it.

[Monitoring/Observability] Show HN: I ditched Grafana for my home server and built this instead Frustrated by the complexity and resource drain of multi service monitoring stacks, I built Simon. I wanted a single, lightweight dashboard to replace the heavy stack and the constant need for an SSH client for routine tasks. The result is a resource efficient dashboard in a single Rust binary, just a couple of megabytes in size. Its support for various architectures on Linux also makes it ideal for embedded systems and lightweight SBCs.<p>It integrates: Comprehensive Monitoring: Realtime and historical metrics for the host system and Docker containers (CPU, memory, disk usage, and network activity). Integrated File &amp; Log Management: A web UI for file operations and for viewing container logs, right where you need them. Flexible Alerting: A system to set rules on any metric, with templates for sending notifications to Telegram, ntfy, and webhooks. My goal was to create a cohesive, lightweight tool for self hosters and resource constrained environments. I&#x27;d love to get your feedback.<p><a href="https:&#x2F;&#x2F;github.com&#x2F;alibahmanyar&#x2F;simon" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;alibahmanyar&#x2F;simon</a>

[Other] GCC 16 considering changing default to C++20

[Other] Show HN: 13Radar – Real-Time Hedge Fund Portfolio Analytics Hi HN,<p>We’re a small team working on 13Radar.com, which we launched about two weeks ago after 4 months of development. I’m the founder, and together with the team we’re building a platform that tracks hedge fund portfolios in real-time based on SEC Form 13F filings.<p>AI has been a major helper in our workflow. For a single webpage, we often consult multiple AI systems in parallel, generating different versions and comparing them side by side before deciding on the final design or implementation. More than 60% of the research, design, and coding involved AI assistance. For UI design we used Readdy, which gave us a smooth design experience. We experimented with Google Gemini and ChatGPT for research and prototyping, while most of the coding was done with Claude Code (Trae). On the front-end, we started with Bootstrap but later switched to TailwindCSS for a lighter, more responsive framework.<p>Features so far:<p>Real-time tracking of hedge fund holdings from SEC 13F filings<p>Portfolio changes per quarter (new positions, increases, reductions, exits)<p>Sector-level insights and trend analysis<p>Historical tracking and backtesting tools<p>Next steps:<p>Implementing pricing and subscription features<p>Adding email notifications and report export<p>Expanding analytics with insider transaction data<p>Continuing to refine usability and performance<p>We’d love feedback from the community:<p>Does this solve a real pain point for investors&#x2F;researchers<p>Any thoughts on improving positioning or usability<p>Suggestions for features that would make this more useful<p>Thanks for reading — and if you’re curious, feel free to check out the site and let us know what you think.

[Other] Show HN: Open-source Agent in Rust that can't delete your database run &quot;stakpak --profile readonly&quot;, then ask it to list, then nuke some AWS resource <a href="https:&#x2F;&#x2F;stakpak.gitbook.io&#x2F;docs&#x2F;how-it-works&#x2F;warden-guardrails" rel="nofollow">https:&#x2F;&#x2F;stakpak.gitbook.io&#x2F;docs&#x2F;how-it-works&#x2F;warden-guardrai...</a>

[Other] Z3 API in Python: From Sudoku to N-Queens in Under 20 Lines

[Other] Production-Grade Container Deployment with Podman Quadlets – Larvitz Blog

[Other] IDEmacs: A Visual Studio Code clone for Emacs

[CLI Tool] Show HN: Continuous Claude – run Claude Code in a loop Continuous Claude is a CLI wrapper I made that runs Claude Code in an iterative loop with persistent context, automatically driving a PR-based workflow. Each iteration creates a branch, applies a focused code change, generates a commit, opens a PR via GitHub&#x27;s CLI, waits for required checks and reviews, merges if green, and records state into a shared notes file.<p>This avoids the typical stateless one-shot pattern of current coding agents and enables multi-step changes without losing intermediate reasoning, test failures, or partial progress.<p>The tool is useful for tasks that require many small, serial modifications: increasing test coverage, large refactors, dependency upgrades guided by release notes, or framework migrations.<p>Blog post about this: <a href="https:&#x2F;&#x2F;anandchowdhary.com&#x2F;blog&#x2F;2025&#x2F;running-claude-code-in-a-loop" rel="nofollow">https:&#x2F;&#x2F;anandchowdhary.com&#x2F;blog&#x2F;2025&#x2F;running-claude-code-in-...</a>

[Other] Show HN: I built IncidentPulse after getting paged at 3 AM I built IncidentPulse after the classic &quot;Slack-on-fire, status-page-outdated&quot; outage chaos. It&#x27;s a clean, self-hosted tool to track incidents, responders, and updates.<p>Live Demo: <a href="https:&#x2F;&#x2F;incident-pulse.vercel.app" rel="nofollow">https:&#x2F;&#x2F;incident-pulse.vercel.app</a> GitHub: <a href="https:&#x2F;&#x2F;github.com&#x2F;bhoyee&#x2F;IncidentPulse" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;bhoyee&#x2F;IncidentPulse</a><p>I&#x27;m at a crossroads and would love your blunt feedback on one question:<p>What&#x27;s the ONE feature that would make you actually switch from your current process (be it PagerDuty, a messy Slack channel, or nothing) to a tool like this?<p>Other things I&#x27;d love thoughts on:<p>Is the webhook setup (with HMAC, idempotency keys) straightforward?<p>The UI is minimalistic—is it missing any critical info at a glance?<p>Would you consider self-hosting this, or is a cloud version a must?

[CLI Tool] Show HN: RAG-chunk – A CLI to test RAG chunking strategies

[DevOps] Automating rootless Docker host updates with Ansible

[Other] Lua 5.5.0 (rc1) has been released for testing

[Other] Show HN: Bubble Lab – Code-based agentic workflow platform (open-source)

[Other] Structured Outputs on the Claude Developer Platform (API)

[Other] Show HN: spymux – Spy on your tmux panes I had motivation for writing this after I kept switching back and forth between agents to see if they&#x27;ve finished what they were working on (and I couldn&#x27;t find a similar tool out there). I&#x27;d imagine it can be useful for other scenarios as well, e.g. tracking multiple build&#x2F;test jobs over multiple windows.<p>Still a work in progress, but I thought I&#x27;d share :)

[CLI Tool] Show HN: TalkiTo – enabling voice and Slack for Claude Code and Codex CLI Hey everyone, here is an open source project I&#x27;ve been working on to add voice input&#x2F;output to terminal based coding agents.<p>One thing about the new terminal coding agents I really like is being able to multi-task but right now it&#x27;s a bit like a Tesla on autopilot needing your hands still on the wheel. You need to be checking often if your input is required or if it&#x27;s going off the rails. To be able to go fully hands free I wanted to add TTS and ASR. Then I added slack and WhatsApp hooks to TalkiTo as well.<p>It&#x27;s fully open source with a BYOK philosophy and it&#x27;s configured to work with any of the major ASR&#x2F;TTS providers. It also supports local whisper and kokoro&#x2F;kittentts if you want a decent free&#x2F;private option.<p>It works by wrapping the coding agent and capturing the input&#x2F;output. It does have an MCP server running but thats mainly for configuration - I found that using MCP to speak or listen was too slow. The upshot of the MCP server is you can type (or say) &quot;talkito disable ASR&quot; or &quot;talkito change tts to kokoro&quot;.<p>Here is a demo video I made here: <a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=pf8jFt0smqs" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=pf8jFt0smqs</a><p>I like to think of it as similar to SuperWhisper but with TTS, the focus on coding agents and configurability.<p>Really curious to get feedback.<p>Thanks!