Show HN: I wrote a new BitTorrent tracker in Elixir (github.com)

297 points by dahrkael 13h ago 45 comments

Show HN: Tool to Automatically Create Organized Commits for PRs (github.com)

58 points by edverma2 9h ago 37 comments

Show HN: Atomic – A to-do app inspired by GitHub squares and Atomic Habits (github.com)

3 points by dreamymoon 1h ago 0 comments

Show HN: Sexprs – Lisp dialect written in Rust (github.com)

15 points by gfalcao 3d ago 7 comments

Show HN: A DOS-like hobby OS written in Rust and x86 assembly (github.com)

181 points by krustowski 22h ago 52 comments

Show HN: EnrichMCP – A Python ORM for Agents (github.com)

114 points by bloppe 19h ago 31 comments

Show HN: Claude Code Usage Monitor – real-time tracker to dodge usage cut-offs (github.com)

227 points by Maciej-roboblog 1d ago 126 comments

Show HN: Turbine – 16-bit CPU Architecture and Emulator built in C (errorcodezero.dev)

9 points by errorcodezero 8h ago 0 comments

Show HN: RM2000 Tape Recorder, an audio sampler for macOS (rm2000.app)

56 points by marcelox86 2d ago 32 comments

Show HN: Unregistry – “docker push” directly to servers without a registry (github.com)

655 points by psviderski 1d ago 151 comments

Show HN: Resy Reservation Scalper Bot (github.com)

3 points by korbinschulz 8h ago 0 comments

Show HN: TrendFi – I built AI trading signals that self-optimize (trend.fi)

32 points by wolfman1 3d ago 50 comments

Show HN: Workout.cool – Open-source fitness coaching platform (github.com)

789 points by surgomat 2d ago 223 comments

Show HN: I built a tensor library from scratch in C++/CUDA (github.com)

117 points by nirw4nna 1d ago 27 comments

Show HN: Walrus TV – Watch anything, with anyone, at anytime (joinwalrus.tv)

2 points by readreplica 8h ago 0 comments

Show HN: Ts-SSH – SSH over Tailscale without running the daemon (github.com)

3 points by i8code 9h ago 0 comments

Show HN: What would you do if you were given Half Billion Dollar? (hbdq.ddgr3.com)

3 points by jujumilk3 9h ago 8 comments

Show HN: Tiny Hoare logic verifier using SMT (github.com)

11 points by namin 2d ago 1 comments

Show HN: Free local security checks for AI coding in VSCode, Cursor and Windsurf

42 points by jaimefjorge 1d ago 22 comments

Show HN: Lstr – A modern, interactive tree command written in Rust (github.com)

224 points by w108bmg 2d ago 66 comments

Show HN: I made an app that lets you save audio to your Cameral Roll (justsendrecord.com)

43 points by zahirbmirza 1d ago 49 comments

Show HN: Relix: A Unix-like OS based on MIT's xv6 (github.com)

9 points by huayra1 17h ago 1 comments

Show HN: Trieve CLI – Terminal-based LLM agent loop with search tool for PDFs (github.com)

34 points by skeptrune 1d ago 8 comments

Show HN: I made an online Unicode Cuneiform digital clock (oisinmoran.com)

108 points by OisinMoran 5d ago 34 comments

Show HN: PlutoBook – Fast, lightweight C++ library for generating PDF from HTML (github.com)

8 points by sammycage 23h ago 1 comments

Show HN: Gifty – A real-world gift hunt you play with your feet (gifty-en.vercel.app)

8 points by mrtranlyvu 4d ago 1 comments

Show HN: Nexus.js - Fabric.js for 3D (punk.cam)

90 points by ges 3d ago 28 comments

Show HN: Provide a short description, get animated character with deep backstory (ki-storygen.com)

2 points by mrkiouak 15h ago 1 comments

Show HN: I vibe coded a Gnutella P2P client to learn how it works (github.com)

5 points by rickcarlino 15h ago 2 comments

Show HN: Delve, an open source (AGPL) enterprise-grade data analytics platform (github.com)

21 points by ilovetux 1d ago 19 comments

Show HN: VS Code extension to share code snippets instantly (snippetshare.dev)

26 points by petermukha 4d ago 20 comments

Show HN: Gaussian Random Walker Simulation in JavaScript (procedural-art.netlify.app)

3 points by godlabs 16h ago 0 comments

Show HN: Embed reactive (live) SQL into HTML (pageql.dev)

3 points by xiphias2 16h ago 0 comments

Show HN: Chawan TUI web browser (chawan.net)

384 points by shiomiru 3d ago 66 comments

Show HN: Canine – A Heroku alternative built on Kubernetes (github.com)

318 points by czhu12 3d ago 122 comments

Show HN: I'm building an app to replace Overleaf and Notion

7 points by WolfOliver 1d ago 0 comments

Show HN: Kentro – a fast Rust library for K-Means clustering (github.com)

6 points by amallia 1d ago 0 comments

Show HN: Simstack, SSH escape room for developers (simstack.io)

6 points by sjmog 20h ago 1 comments

Show HN: WhatsDate – Meet new people in WhatsApp (whatsdate.chat)

5 points by MasihMinawal 20h ago 4 comments

Show HN: WFGY – A reasoning engine that repairs LLM logic without retraining (github.com)

10 points by WFGY 2d ago 6 comments

Show HN: MCP to generate professional PDF – gen-pdf (gen-pdf.com)

2 points by beynar 22h ago 1 comments

Show HN: EchoStream – A Local AI Agent That Lives on Your iPhone

3 points by shuhongwu 22h ago 0 comments

Show HN: I Built a MCP Server for Robot Operating System (github.com)

5 points by ponta17 22h ago 0 comments

Show HN: dk – A script runner and cross-compiler, written in OCaml (diskuv.com)

61 points by beckford 3d ago 9 comments

Show HN: I built an app to organize fragmented learning (apps.apple.com)

5 points by ssthomas 1d ago 1 comments

Show HN: Zeekstd – Rust Implementation of the ZSTD Seekable Format (github.com)

214 points by rorosen 4d ago 46 comments

Show HN: Buntal – Lightweight SSR and SPA web framework with less dependencies (buntaljs.org)

4 points by mgilangjanuar 1d ago 2 comments

Show HN: Rulebook AI – rules and memory manager for AI coding IDEs (github.com)

20 points by botingw_job 2d ago 5 comments

Show HN: A color name API that maps hex to the closest human-readable name (meodai.github.io)

3 points by meodai 1d ago 0 comments

Show HN: I recreated 90s Mode X demoscene effects in JavaScript and Canvas (jdfio.com)

184 points by gneissguise 3d ago 69 comments

Revisiting Knuth's "Premature Optimization" Paper

6 Bogdanp 2 6/20/2025, 1:37:26 AM probablydance.com ↗

Comments (2)

TZubiri · 2h ago

I don't think the quote is often misused, probably 97% of the times it is used correctly, but we should not ignore the 3% of the times when it is applied incorrectly

karmakaze · 50m ago

For those 97% the usage was YAGNI, the superset of premature optimizations.